NAVEDTRA_12204-AQ_MACHINERY REPAIRMAN 3

8/14/2019 NAVEDTRA_12204-AQ_MACHINERY REPAIRMAN 3

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Naval Education andTraining Command

NAVEDTRA 72204September 19930503-LP-477-5700

Nonresident TrainingCourse (NRTC)

Machinery Repairman 3

Only one answer sheet is included in the NRTC. Reproduce therequired number of sheets you need or get answer sheets from yourESO or designated officer.

DISTRIBUTION STATEMENT A: Approved for public release; distribution is unlimited.

Nonfederal government personnel wanting a copy of this document

must use the purchasing instructions on the inside cover.

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DISTRIBUTION STATEMENT A: Approved for public release; distribution is unlimited.

Nonfederal government personnel wanting a copy of this document must write to Superintendent of Documents, Government

Printing Office, Washington, DC 20402 OR Commanding Officer, Naval Publications and Forms Directorate, Navy Aviation

Supply Office, 5801 Tabor Avenue, Philadelphia, PA 19120-5099, Attention: Cash Sales, for price and availability.


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NAVAL EDUCATION AND TRAINING PROGRAMMANAGEMENT SUPPORT ACTIVITY

6490 SAUFLEY FIELD ROADPENSACOLA, F L 3 2 5 0 9 - 5 2 3 7

ER R ATA NO. 1

STOCK ORDER NO.0503-LP-477-5701

3 MAY 1994

SPECIFIC INSTRUCTIONS AND ERRATA FORNONRESIDENT TRAINING COURSE

MACHINERY REPAIRMAN 3, NAVEDTRA 72204

1. T o r e c e i v e c r e d i t f o r d e l e t e d q u e s t i o n s , s h o w t h i s e r r a t a t oy o u r l o c a l c o u r s e a d m i n i s t r a t o r ( E S O / S C O R E R ) . T h a t p e r s o n i sd i r e c t e d t o c o r r e c t t h e a n s w e r k e y f o r t h i s c o u r s e b y d e l e t i n gt h e q u e s t i o n s n o t e d b e l o w .

2 . N o a t t e m p t h a s b e e n m a d e t o i s s u e c o r r e c t i o n s f o r e r r o r s i n

t y p i n g , p u n c t u a t i o n , a n d s o o n t h a t w i l l n o t a f f e c t y o u r a b i l i t yt o a n s w e r t h e q u e s t i o n .

3 . ASSIGNMENT BOOKLET: MACHINERY REPAIRMAN 3, NAVEDTRA 72204

a . D e l e t e t h e f o l l o w i n g q u e s t i o n s a n d l e a v e t h ec o r r e s p o n d i n g s p a c e o n t h e a n s w e r s h e e t b l a n k .

QUESTIONS QUESTIONS QUESTIONS

1 - 1 6 2 - 4 7 - 1 31 - 5 3 6 - 4 0

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MACHINERY REPAIRMAN 3

NAVEDTRA 72204

Prepared by the Naval Education and Training Program ManagementSupport Activity, Pensacola, Florida

Congratulations! By enrol l ing in th is course . you have demonstrated a desire to improveyourself and the Navy. Remember. however, this self-study course is only one part of thetotal Navy training program. Pract ical exper ience, schools . se lected reading, and yourdesire to succeed are also necessary to successfully round out a fully meaningful trainingprogram. You have taken an important step in

HOW TO COMPLETE THIS COURSE SUCCESSFULLY

ERRATA: If an errata comes with this course,make al l indicated changes or cor rect ionsb ef or e y ou s ta rt an y a ss ig nm en t. D o no tc h a n g e o r c o r r e c t the Training Manual(TRAMAN) or assignments in any other way.

TEXTBOOK ASSIGNMENTS: The TRAMAN for thisc o u r s e i s MACHINERY REPAIRMAN, NAVEDTRA12204-A. The TRAMAN pages that you are tos t u d y a r e l i s t e d a t t h e b e g i n n i n g o f e a c hassignment. S t u d y t h e se p a g e s c a r e f u l l ybefore attempting to answer the questions inthe course. P a y c l o se a t t e n t i o n t o t a b l e sand i l lu st ra ti ons because they containinformation that will help you understand thetex t . Read the learning object ives providedat the beginning of each chapter or topic in

t h e t e x t a nd /o r p re ce di ng each s e t o f questions in the course. Learning objectivessta te what you should be able to do af terstudying the mate ria l . Answering th equestions correctly helps you accomplish theobjectives.

self-improvement. Keep up the good work.

and information from others on problems thatm a y a r i s e i n t h e c o u r s e . However, theanswers must be the result of your own workand decis ions. You are prohibi ted f romr e f e r r i n g t o o r c o p y i n g t h e a n s w e r s o fothers and from giving answers to anyonee ls e t ak in g t he sa me co ur se . F a i lu r e t ofollow these rules can result in suspensionfrom the course and disciplinary action.

BLACK DOT INFORMATION: Black dots ( ) may beused in the text and correspondence course toemphasize i m p o r t a n t o r supplementalinformation and to highlight instructions fora ns we ri ng c er ta in q ue st io ns . R ea d th es eblack dot ent r ies careful ly ; they wi l l help

you answer the questions and understand thematerial.

SELECTING YOUR ANSWERS: After studying theTRAMAN, you should be ready to answer theq ue st io ns in th e a ss ig nm en t. Read eachquest ion careful ly , t h e n s e l e c t t h e BE S Tanswer. Be sure to select your answer fromthe subject matter in the TRAMAN. You mayrefer freely to the TRAMAN and seek advice

SUBMITTING COMPLETED ANSWER SHEETS:Complete a l l a ss i gn m en t s a s q ui ck ly a spossible to derive maximum benefit from thecourse. As a minimum, you must submit atleast one assignment per month. T h i s i s ar e q u i r e m e n t e s t a b l i sh e d b y t h e Ch i e f o f Naval Education and Training. F a i l u r e t omeet t h i s requirement could r e s u l t i ndisenrollment from the course.

TYPES OF ANSWER SHEETS: If you are a U.S.Navy enlisted member on active duty or adrilling U.S. Naval Reserve enlisted member,you should use the answer sheet attached att h e e n d o f t h i s c o u r s e a n d f o l l o w t h einstructions in section A below. If you arean enlisted U.S. Naval Reserve member who isn o t a t t a c h e d t o a d r i l l i n g u n i t o r i f y o uare an of f icer , a c iv i l ian , or a member of the U.S. Army, Air Force, Marine Corps, orCoast Guard, you should use the AutomaticData Processing (ADP) answer sheets included

i n t h e course package a n d f o l l o w t h einstructions in section B.

A. Manually Scored Answer Sheets

If you are a U.S. Navy enlisted memberon active duty or attached to a U.S. NavalReserve dr i l l ing uni t , your course wi l l beadministered by your local command. Youm u s t u s e t h e a n s w e r s h e e t d e s i g n e d f o r

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get a s u p p l y o f the f o r m s fr o m yo u rEducational Services Officer (ESO). or youmay reproduce the one in the back of th iscourse booklet . DO NOT USE THIS FORM FORCOURSES ADMINISTERED BY NETPMSA.

R e c o r d i n g I n f o r m a t i o n o n t h eM an ua lly S co red A ns we r She et s: A s y oucomplete each assignment, submit the

c o m p l e t e d a n s w e r s h e e t t o y o u r E S O f o rgrad ing. You may submit more than one answersh ee t a t a ti me . Remember, you must submitat least one assignment each month.

Grading: Your ESO will grade eachanswer sheet and notify you of any incorrectanswers. The passing score fo r eachassignment is 3.2. If you receive less than3.2 on any assignment, the ESO will list thequestions you answered incorrectly and giveyou an answer sheet marked "RESUBMIT." Youmust redo the assignment and complete the

RESUBMIT answer sheet. The maximum score youcan receive for a resubmitted assignment is3.2.

Course Completion: After you havesu b m i t t e d a l l t h e a n sw e r sh e e t s a n d h a v eearned at least 3.2 on each assignment, yourc o mm a nd s h ou l d gi ve y o u cr ed i t fo r t h i scourse by making the appropr ia te ent ry inyour service record.

Student Q uestions: I f y ou h a vequest ions concerning the adminis t ra t ion of

this course, consult your ESO.

B. ADP Answer Sheets

If you are an enlisted U.S. NavalRe se r v e m e m b e r w h o i s n o t a t t a c h e d t o ad r i l l i n g r e s e r v e u n i t o r i f y o u a r e a nofficer, a civilian, or a member of the U.S.Army, A ir F or ce , M a ri n e C o rp s , o r C o a stGuard, use the ADP answer sheets provided iny ou r c ou rse pa cka ge . Y ou sho ul d u se o neblank or ig inal ADP answer sheet for eachassignment. Use only the original ADP answer

s h e e t p r o v i d e d i n y o u r c o u r s e package;NETPMSA will not accept reproductions.

Recording Information on the ADPA n s w e r S h e e t s : F o l l o w t h e "MARKINGINSTRUCTIONS" on each answer sheet. Be suret h a t b l o c k s 1 , 2 , and 3 are filled inc o r r e c t l y . This information is necessary foryour course to be properly processed and foryou to receive credit for your work.

As you work the course, be sure to mayour answers in the course booklet becauyour answer sheets wil l not be returned you. When you have completed an assignmentransfer your answer from the course bookto the answer sheet.

Mailing the Completed ADP AnswSheets: Upon completing an assignment, ma

the completed answer sheet to:

COMMANDING OFFICER

NETPMSA CODE 0746490 SAUFLEY FIELD RDPENSACOLA FL 32559-5000

Use envelopes to mail your answer sheetYou must provide your own envelopes request them from your ESO. You may enclomore than one a n sw e r sh e e t i n a s i n genvelope. Remember, regardless of how mananswer sheets you submit at a time, NETPMS

should receive a t least one assignmentmonth.

NOTE: DO NOT USE THE COURSE COMMENTPAGE AS AN ENVELOPE FOR RETURNING ANSWESHEETS OR OTHER COURSE MATERIALS.

Grading: NETPMSA will grade tha n s w e r s h e e t s a n d n o t i f y y o u b y l e t tconcerning your grade for each assignmenyour i nc or re ct a ns we rs , a n d y o u r f i ngrade. The passing score f o r eacassignment is 3.2. If you receive less tha

3.2 on any assignment, you must rework thassignment. NETPMSA will enclose a new ADanswer sheet in the let ter notifying you the quest ions you answered incorrect ly .You will be required to redo the assignmeand resubmit the new answer sheet . Thmaximum score y o u c a n receive for resubmitted assignment is 3.2.

Course Completion: When yocomplete the las t ass ignment , f i l l out th"Course Completion" form in the back of thcourse and enclose it with your last answ

s he et . N ET PM SA wi ll i ss ue yo u a le ttcert ifying that you sat isfactori ly completet he c ou rs e. Y ou s ho ul d m ak e s ur e t hcredi t for the course i s recorded in yoservice record. YOU MAY RETAIN THE TEXT.

NOTE: YOUR OFFICIAL COURSE COMPLETIODATE WILL BE THE DATE YOUR LAST ASSIGNMENIS PROCESSED THROUGH THE NETPMSA ADP SYSTEM-NOT THE DATE YOU DEPOSIT THE LAS

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ASSIGNMENT IN THE MAIL. This i s especial lyimpor tant i f you are taking the course forNaval Reserve retirement credit. You mustm a i l y o u r a n sw e r sh e e t s a t l e a s t 6 0 d a y sbefore your anniversary date . T h i s w i l lprovide you with enough t ime for delays inthe mail or reworking failed assignments. DONOT MAIL YOUR ASSIGNMENTS TO THE NAVALRESERVE PERSONNEL COMMAND (NRPC).

Student Questions: Refer questionsconcerning this course to NETPMSA bymail (use the address on page ii) or byteleph one: DSN 922-1366 or commercial (904)452-1366.

NAVAL RESERVE RETIREMENT CREDIT

If you are a member of the NavalReserve, you wil l receive ret irement pointsif you are authorized to receive them undercurrent d i rect ives governing re t i rement of Naval Reserve personnel. For the purpose ofNaval Reserve retirement, this edition of thec o u r se i s e v a l u a t e d a t 1 1 p o i n t s . Thesep o i n t s w i l l b e c r e d i t e d t o y o u u p o n y o u rsatisfactory completion of the entire course.

NOTE: YOUR OFFICIAL COURSE COMPLETIONDATE WILL BE THE DATE YOUR LAST ASSIGNMENT ISPROCESSED THROUGH THE NETPMSA ADP SYSTEM--NOTTHE DATE YOU DEPOSIT THE LAST ASSIGNMENT INTHE MAIL. Refer to the Course Completionp ar ag ra p h u nd er s e c ti on B . ADP AnswerSheets.

COURSE OBJECTIVES

Upon completing this course, the studentshould be able to answer quest ions on thefollowing subjects: Toolrooms. tools ,layout , benchwork, metals , p last ics , powersaws, d ri ll i ng m ac hi ne s, too1 grinding,carbide tooling, e n g i n e l a t h e s , mi l l ingmachines, shapers. planers, engravers,precision grinding machines, metal buildup,r ep ai r w or k, g e ar c u tt in g . m et al ha rd ne ss ,

and heat treatment.

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Naval courses may include several types of questionsmultiple-choice, true-false, matching, etc. The questionare not grouped by type but by subject matter. They are presented in the same general sequence as the textbookmaterial upon which they are based. This presentation is designed to preserve continuity of thought, permittinstep-by-step development of ideas. Not all courses use all of the types of questions available. The student can readilyidentify the type of each question, and the action required, by inspection of the samples given below.

MULTIPLE-CHOICE QUESTIONS

Each question contains several alternatives, one of which provides the best answer to the question. Select thbest alternative, and blacken the appropriate box on the answer sheet.

SAMPLEs-l. Who was the first person appointed

Secretary of Defense under theIndicate in this way on the answer sheet:

National Security Act of 1947?

1. George Marshall2. James Forrestal3. Chester Nimitz4. William Halsey

TRUE-FALSE QUESTIONS

Mark each statement true or false as indicated below. If any part of the statement is false the statement is tobe considered false. Make the decision, and blacken the appropriate box on the answer sheet.

SAMPLE

s-2. All naval officers are authorized to Indicate in this way on the answer sheet:correspond officially with any systemscommand of the Department of theNavy without their respective com-manding officers endorsement.

1. True2. False

MATCHING QUESTIONS

Each set of questions consists of two columns, each listing words, phrases or sentences. The task is to selectthe item in column B which is the best match for the item in column A that is being considered. Items in columnB may be used once, more than once, or not at all. Specific instructions are given with each set of questions. Selectthe numbers identifying the answers and blacken the appropriate boxes on the answer sheet.

SAMPLE

In questions s-3 through s-6, match the name of the shipboard officer in column A by selecting from columnB the name of the department in which the officer functions. Some responses may be used once, more than onceor not at all.

A. OFFICER B. DEPARTMENT Indicate in this way on the answer sheet:

s-3. Damage Control Assistant 1. Operations Department

s-4. CIC Officer 2. Engineering Department

s-5. Disbursing Officer 3. Supply Department

s-6. Communications Officer

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ASSIGNMENT 1

Textbook Assignment: "Toolrooms and Tools," chapter 1, and "Layout and Benchwork." chapter

2.

l - l . A shipboard toolroom should havewhich o f the fo l lowing p rov is ionsNOT required in a toolroom ashore?

1. Cushions to reduce damage tot o o l s

2. F a s t e n e r s t o h o l d t o o l s i np l a c e

3. Specia l b ins to s to re powert o o l s

4. Rep lacement par t s to repa i rb roken too ls

1-2. The toolroom keeper normally doesNOT have which of the following

d u t i e s ?

1. C on tr ol t he c us to dy of t oo ls2. T es t m et al fo r h ar dn es s

3. S to re measur ing ins t rumentsp r o p e r l y

4 . Rep lace b roken hammer handles

A. Metal she lvesB. M e t a l r o t a t i n g b i n s

C. Lined wooden boxes

D. Metal cab ine t s wi th var iouss ized d rawers

E. Pegboard equ ipped wi th fas tener

Figure 1A

IN ANSWERING QUESTIONS 1-3 THROUGH 1-5,SELECT FROM FIGURE 1A THE BEST STORAGESPACE FOR THE ITEM DESCRIBED IN THEQUESTION.

1-3. The cu t te r shown in f igure 1 -15 in

your t ex tbook .

1-4. Nuts and bo l t s .

1. A

2. B3. C4. D

1-5. A gear too th vern ier .

1. B2. C3. D

4. E

1 -6 . W hi ch of th e f ol lo wi ng is a go odp r a c t i c e f o r a t o o l r o o m k e e p e r t o

follow?

1. Check the accuracy o f p rec i s iontoo ls befo re i s su ing them, anda g a i n a f t e r t h e y a r e r e t u r n e d

2. Repair damaged toolsimmedia te ly a f te r they arere tu rned to the too l room

3. Remove a l l o i l and fo re ignm a t t e r f r o m t o o l s r e t u r n e d t othe too l room, and s to re them

d r y4. S h a r p e n a l l c u t t i n g t o o l s

b e f o r e p l a c i n g t h e m i n t h e i rs to rage spaces

1. A

2. C3. D4. E

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1-7. T o c on tr ol to ol s l oa ne d t o a l l

depar tmen ts in a sh ip , a too l room

keeper should use what procedure?

1. Prov ide a checkou t log a t theissuing window and requireborrowers to s ign the i r namesa n d l i s t t h e t o o l b o r r o w e d

2. Issue numbered tool checks toa l l depar tmen ts ; when a

d e p a r t m e n t b o r r o w s a t o o l , i ts u r r e n d e r s a t o o l c h e c k t o t h e

toolroom keeper3. M ai nt ai n a ch ec ko ut b oa rd w it h

a separa te co lumn fo r eachdepartment

4. Use checkou t s l ips o r fo rms torecord the borrower ' s name,n a m e o f t h e t o o l , i t s l o c a t i o n ,

and the da te

1 -8 . W he n c on tr ol le d e qu ip ag e i srece ived f rom the supp lyd e p a r t m e n t , w h a t p e r s o n i n i t i a l l ys igns the cus tody card?

1. The user2. The toolroom keeper3. T he di vi si on of f i ce r4. The department head

1-9. Inven to ry o f con t ro l led equ ipage i sconducted a t l eas t once eachq u a r t e r .

1. True2. F a l s e

1-10. A d ia l in di c at or i s mo st u se f ul f orwhat purpose?

1. T o l o c a t e t h e c e n t e r o f a p i e c eof round s tock

2. T o c h e c k a s h a f t f o r o u t - o f -roundness

3. T o t r u e t h e i n t e r n a l s u r f a c e s

o f a c y l i n d e r4. To measure the distances

between two closely mateds u r f a c e s

1-11. The thread micrometer shown in

f igure 1 -4 o f your t ex tbook i s useto measure what type of thread?

1. Acme2. Square3. 60 V-form4. B u t t r e s s

1-12. S ta nd ar d v er n ie r c al i pe rs ha ve

sca les g raduated in whatincrements?

1. 0.0001 i n .2. 0.001 i n .3. 0.01 i n .4. 0 .1 i n .

1-13. T o c he c k t he in si d e o f a cy li nd erfo r ou t -o f - roundness , you shou ld

u s e a / a n

1. master ring gauge2. d i a l v e r n i e r c a l i p e r3. outside micrometer4. d ia l bore gauge

1-14. The he igh t a t which an ad jus tab lep a r a l l e l i s l o c k e d s h o u l d b edetermined by what means?

1. A sca le on the d iagonal edge oone block

2. An outside micrometermeasurement

3. A feeler gauge placed betweenthe block and the workpiece

4. A direct comparison with agauge block

1-15. A ge a r t oo t h v er n ie r ca n b e us e d tmeasure which or the followingdimensions?

1. One linear dimension only2. O ne l in ea r di me ns io n a nd on e

ang le s imul taneous ly3. Two linear dimensions

s imul taneous ly4. Two linear dimensions and twoarcs s imul taneous ly

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1-16. A o n e - q u a r t e r - s i z e s c a l e t h a t i s 1 2i n c h e s l o n g i s c a l i b r a t e d t o r e a dfrom zero to

1. 36 i n .2. 48 i n .3. 3 i n .4 . 4 i n .

1-17. T h e s t e e l r u l e w i t h h o l d e r s e t i s

used normally to measure whatf e a t u r e s ?

1. Recesses2. G e a r t e e t h3. Thicknesses4 . C y l i n d r i c a l s u r f a c e s

1-18. Acme thread tool gauges are usedfor what purpose?

1. T o m ea su re t he pi tc h of s cr ewo r b o l t t h r e a d s

2. To es t imate the th read ang le o f s c r e w s o r b o l t s

3. T o s e t u p t h r e a d - c u t t i n g t o o l s4. To determine clearances between

b o l t a n d n u t t h r e a d s

1-19. W hi c h o f t he fo ll ow i ng is ano r d i n a r y u s e o f p a r a l l e l b l o c k s ?

1. To check the concav i ty o f acurved su r face

2. To determine whether theoppos i te edges o f a workp iece

a r e p a r a l l e l3 . To compare workpiece dimensions

w i t h a f i n i s h e d p i e c e4. T o a cc ur a te ly po si t io n w or k fo r

machining

1-20. A mechanism has a bushing with a6 - inch d iameter and a c learance o f 0 .001 inch be tween i t and the

mechanism housing. To check thehous ing c learance , you shou ld usewhat too l?

1. A fee ler gauge2. A 6- inch meta l sca le3. A c ut te r cl ea ra nc e ga ug e4. A micrometer

1-21. A s i n e b a r i s u s e d t o l o c a t e v e r y

s m a l l i r r e g u l a r i t i e s o n a m a c h i n e ds u r f a c e .

1. True

2. F a l s e

1-22. A rounded shoulder on a machinedpart is measured with what gauge?

1. Cen ter2. F e e l e r3. Surface4. Radius

1 -2 3. T he mo st pr ec is e c he ck of th eaccuracy o f a micrometer i s donewi th what too l?

1. A gauge block2. A m a c h i n i s t ' s r u l e3. A di al in d i ca to r

4 . A v e r n i e r c a l i p e r

1-24. The sp ind le o f a zero ad jus tedmicrometer i s in con tac t wi th thea n v i l . What problem can cause itto read more than zero?

1. Thread wear2. Burrs on the sp ind le3. A worn anvil4. A r us te d b a rr el

1-25. How should you determine if amicrometer needs to be

r e c a l i b r a t e d ?

1. Ask your superv iso r2. Ask the supp ly c le rk 3 . Check the QA manual4 . C h e c k t h e t o o l c a l i b r a t i o n

s t i c k e r

1 -2 6. W hen u si n g a mi c ro me t er , y ou sh ou l davoid all EXCEPT which of thef o l l o w i n g p r a c t i c e s ?

1. Back the spindle away from the

a n v i l2 . M easu re mo vi ng pa rt s3. O pe n i t b y s pi nn in g t he fr a me4. C a r r y i t i n y o u r p o c k e t

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1-27.

1-28.

1-29.

You should use what lubricant on 1-32. W h a t i s t h e s h o r t l i m i t o f

t h e i n t e r n a l p a r t s o f a m i c r o m e t e r ? dimension D?

1. P e t r o l e u m j e l l y

2. S i l i c o n e g r e a s e

3. Graphite powder4. L i g h t o i l

To zero se t an ins ide micrometer ,you should use what instrument?

1. 5 /8 i n .

2. 11/16 i n.3. 3/4 i n .4. 13/16 i n .

1. A ho l low cy l inder s tandard

2. A micrometer ca l iper

3. A v e r n i e r c a l i p e r

4. A cylinder ga uge

Tolerance i s the d i f fe rence be tweenthe allowable minimum and maximumdimensions.

Figure 1C

IN ANSWERING QUESTIONS 1-33 AND 1-34,REFER TO FIGURE 1C.

1. True2. F a l s e

1-33. What is the maximum permissibleroughness he igh t ra t ing?

Figure 1B

IN ANSWERING QUESTIONS 1-30 THROUGH 1-32,REFER TO FIGURE 1B.

1-30. W h a t i s t h e t o t a l t o l e r a n c e o f dimension A?

1. 0.0005 i n .2. 0.001 i n .3. 0.002 i n .4. 0.006 i n .

1 -31. What i s the maximum permiss ib le

length of dimension B?

1. 2 .0 i n .2. 2.05 i n .3. 2.005 i n .4. 2.0005 i n .

1. X.0072. 523. 34. 0.005-3

1-34. What type o f l ay i s requ i red byth i s d rawing?

1. A ng ul ar i n b ot h d ir e ct io ns tothe su r face boundary l ine

2. P ar a l le l t o t he su r f ac eboundary l ine

3. M u l t i d i r e c t i o n a l w i t h r e s p e c tto the su r face boundary l ine

4 . P er pe nd ic ul ar t o t he s ur f ac eboundary line

1-35. W h a t i s t h e d e f i n i t i o n o r a l a y o u

1. T he p os it io ni ng of p ar t s o n t hworkbench

2 . The mark ing o r meta l su r facesas an ou t l ine fo r mach in ing

3. A gu ide tha t a ids in thedisassembly of equipment to be

r e p a i r e d4 . A n o ri gi na l d ra wi ng u se d t o

make a b luepr in t

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1-36. W he n s cr i bi n g a li n e o n a me ta lsur face , how should you pos i t ionthe handle of the sc ra tch awl wi thr e f e r e n c e t o a s t r a i g h t e d g e a n d t h edirection of movement?

1. P o i n t i t o p p o s i t e t o t h edirection of movement and overt h e s t r a i g h t e d g e

2. P o i n t i t i n t h e d i r e c t i o n o f

movement and over thes t r a i g h t e d g e

3. P o i n t i t o p p o s i t e t o t h edirection of movement and awayf rom the s t ra ightedge

4. P o i n t i t i n t h e d i r e c t i o n o f movement and away from thes t r a i g h t e d g e

Figure 1D

IN ANSWERING QUESTION 1-37, REFER TOFIGURE 1D.

1-37. W ha t i s t h e b es t w ay to fi n d t h ecenter of the rectangle ABCD?

1. S cr ib e a li ne pa ra ll el to AC

th r ough po in t b a nd f ind them i d p o i n t o f t h i s l i n e

2. Scr ibe l ines f rom poin ts a andb square wi th the edge unt i lt h e y i n t e r s e c t

3. Scribe a line from A to D andanother from B to C

4. Scr ibe two a rcs wi th radius Aa

1-38. To loca te the cente r of roundstock, you should use whatins t rument?

Figure 1E

IN ANSWERING QUESTIONS 1-39 AND 1-40.REFER TO FIGURE 1E.

1-39. In drawing a l ine perpendicula r t ol ine BC through poin t A, you f i r s tprick punch point A. What shouldbe your next s tep?

1. Draw arc BC

2. P ri ck pu nc h p oi nt s B a nd C3. Draw a r c s 1 and 24. Pri ck pu nch poi nt D

1-40. Arc 2 i s drawn wi th d iv iderscente red on wha t poin t?

1. A2. B3. C

4. D

1. A div ider2. A cente r head and ru le3. Trammel points4. A square

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Figure 1F

IN ANSWERING QUESTIONS 1-41 AND 1-42,REFER TO FIGURE 1F. YOU ARE DRAWING ALINE PERPENDICULAR TO LINE BC THROUGHPOINT A.

1-41. What should be your f i r s t s tep?

1. Pr ick punch point A2. Draw arcs B and C3. Draw arcs at D an d E

4. Prick punch points D and E

1 -4 2. W ha t s ho ul d b e y ou r s ec on d s te p?

1. Prick punch point A2. Draw arcs B and C3. Draw arcs at D and E4. Prick punch points D and E

1-43. Y o u a r e u s i n g d i v i d e r s t o e s t a b l i s hthe poin ts you need to sc r ibe

p a r a l l e l l i n e s 2 i n c h e s a p a r t ? Y o us h o u l d s e t t h e d i v i d e r s t o w h a t

l e ng th?

1. .5 i n .2. 2 .0 i n .3. 6 . 0 i n .4 . A ny co nv en ie nt le ng th

Figure 1G

IN ANSWERING QUESTIONS 1-44 THROUGH 1-47,REFER TO FIGURE 1G.

1-44. T he h o ri zo n ta l b i se ct o r i s

indica ted by wha t l ine?

1. AC2. AD3. BE4. DF

1-45. T he p it ch c ho rd i s in di ca te d bywhat l ine?

1. AC2. AE3. BG

4. CF

1-46. W h at li ne bi s ec ts a p i tc h c ho rd ?

1. CE2. DE3. FE4. GB

1-47. Y ou ar e l a yi n g o u t a va l ve fl an g ef o r d r i l l i n g . You should locatew h a t p a r t o f t h e c o n s t r u c t i o nf i r s t ?

1. Line BG2. Line DF3. Point A

4. Point E

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1-48. The p i tch chords o f a 6 -ho le p ipef l a n g e a r e e q u a l t o t h e

1. r a d i u s o f t h e p i t c h c i r c l e2. d i a m e t e r o f t h e p i t c h c i r c l e3. r a d i u s o f t h e f l a n g e

4. i n s i d e d i a m e t e r o f t h e p i p e

1-49. A fl a ng e h as 5 b ol t h ol e s a nd ap i t c h d i a m e t e r o f 4 i n c h e s . W h a t

i s i t s approx imate p i tch chord?

1. 0 .59 i n .2. 1.18 i n .3. 2.00 i n .

4. 2.35 i n .

1-50. I n me ta l wo r ki ng , s c ra pi ng i s u se dpr imar i ly fo r what purpose?

1. To remove sharp edges fromc a s t i n g s

2 . T o p ro du ce cu rv ed su rf ac es3. T o sm oo th a m ac hi ne d su rf ac e

4. T o p r e p a r e c a s t i n g s f o r

machining

1-51. Y o u a r e s c r a p i n g a f l a t s u r f a c e t oa c h i e v e a c o r r e c t c l e a r a n c e . Whydo you need to use p russ ian b lue inthis work?

1. I t s t i c k s t o t h e h i g h s p o t s o nthe workpiece and shows up theareas tha t shou ld be scraped

2. I t h e l p s p r e v e n t " f r i c t i o n a ld r a g " i n t h e s c r a p i n g o p e r a t i o n3. I t h e l p s t o m a i n t a i n

l o n g i t u d i n a l a s w e l l a s r a d i a lc l e a r a n c e o n t h e f l a t s u r f a c e

4. I t keeps ch ips f rom break ingoff the edges when the par t i sopera t ing aga in

1-52. To prevent seizing between mated

p a r t s t h a t a r e b e i n g f o r c e - f i t t e dby a hydrau l ic ram, you shou ld takewhat ac t ion?

1. I nc re as e r am pr es su re2. L u b r i c a t e t h e p a r t s

3. H ea t th e pa r t s4. I ns er t a so f t m et a l p la t e

between the work faces

1-53. To p reven t mut i la t ion o f the

s u r f a c e o f a w o r k p i e c e t h a t i sbe ing p ressed , you shou ld take whata c t i o n ?

1. Increase the ram pressure2. Lubr ica te the ram

3. H ea t t he w or kp ie ce4. I n s e r t a s o f t m e t a l p l a t e

between the work and the ram

1-54. What method of fi l ing produces af i n e r f i n i s h ?

1. Down2. Cross3. Draw4. Hatch

1-55. T o i n s t a l l a s c r e w t h r e a d , n o r m a l l yyou should NOT use which of thefo l lowing too ls?

1. I ns e r t i ng t oo l2. Tap3. Tang b reak-off too l4 . Screwdr iver

1 -5 6. T he ox yg en ho se us ed wi thoxyacetylene equipment is whatc o l o r ?

1. Red2. Green3. Blue

4. Yellow

1-57. On oxyacetylene equipment, theoxygen hose th reads in (a ) whatd i rec t ion and the ace ty lene hoset h r e a d s i n ( b ) w h a t d i r e c t i o n ?

1. ( a ) L ef t- ha nd , ( b) r ig ht -h an d2. ( a ) L e f t - h a n d , ( b ) l e f t - h a n d

3. ( a ) R i g h t - h a n d , ( b ) r i g h t - h a n d

4. ( a ) R i g h t - h a n d , ( b ) l e f t - h a n d

1-58. What is the maximum working

p r e s s u r e o f a c e t y l e n e ?

1. 5 p s i g2. 10 p s i g

3. 15 p s i g4. 20 p s i g

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1-59. An ace ty lene cy l inder va lve shou ldbe opened what maximum number of

t u r n s ?

1. 1 / 4 t u r n2. 1 / 2 t u r n3. 1 t u r n4. 1 1 / 2 t u r n s

1-60. You are hea t ing a par t wi th an

ace ty lene to rch and a f l ash back occurs . You should immediately

shu t o f f the to rch oxygen va lve ant h e n s h u t o f f t h e a c e t y l e n e v a l v e .

1. True2. F a l s e

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ASSIGNMENT 2

Textbook Assignment: " M e t a l s a n d P l a s t i c s , " c h a p t e r 3 , and "Power Saws and Drilling

Machines ," chapte r 4 .

IN ITEMS 2-1 THROUGH 2-3, SELECT FROMCOLUMN B THE BEHAVIOR OF THE METAL THAT ISMADE POSSIBLE BY THE PROPERTY IN COLUMN A.

A. PROPERTY B. BEHAVIOR

2-1 . D u c t i l i t y 1. R e s i s t sdeformation

2-2. T e n s i l e when a loads t r e n g t h i s a p p l i e d

2-3. Toughness 2. Can be ro l ledor hammeredi n t o s h e e t s

3. Can be drawn

o u t o r p u l l e din to wire form

4. R e s i s t sshock ands t r e s s

2-4. H ig h fa ti gu e r es is ta nc e i sd e s i r a b l e i n a m a t e r i a l t h a t i ss u b j e c t e d t o

1. abras ion2. r e p e t i t i o n o f s t r e s s3. cor ros ive subs tances4. h i gh t empera t ures

2-5. The ease wi th which a meta l may beplaned and shaped i s bes t desc r ibedby what term?

1. M a l l e a b i l i t y2. P l a s t i c i t y3. D u c t i l i t y4. Machinab i l i ty

2-6.

2-7.

2-8 .

2-9 .

2-10.

The heat resistance of a metal isindicated by its ability to

1. conduct heat

2 . withs ta nd st re ss at hightemperatures

3. maintain a temperature thatdiffers from the surroundingtemperature

4. maintain constant dimensionsunder wide variations intemperature

To make cast iron, you should melttoge ther which of the fo l lowingm a t e r i a l s ?

1. S t e e l a n d i r o n o r e2. I ron ore and p ig i ron3. P ig i ron and sc rap i ron4. S cr ap i r o n a nd s t ee l

S t r e n g t h a n d h i g h r e s i s t a n c e t o

sa l twa te r cor ros ion make which of t h e f o l l o w i n g m e t a l s b e s t f o r u s eon board ships?

1. Aluminum2. Copper3. Bronze

4. Copper -n icke l

K-Monel is made harder and strongerthan other grades of Monel by theaddi t ion of wha t e lement?

1. Aluminum2 . Vanadium3. Chromium4. Molybdenum

Valves for h igh- tempera ture , h igh-

pressure piping systems are madefrom which of the following metals?

1. Tu ngs ten s t ee l2. Bronze3. Copper4. Carbon-molybdenum steel

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2-11. S t a i n l e s s s t e e l s c o n t a i n w h i c h o f the fo l lowing meta l s :

1. Molybdenum2. Chromium3. Tungsten4. Vanadium

2 -1 2. H ig h c ar bo n st ee l is c om mo nl y us edfor which o f the fo l lowinga p p l i c a t i o n s ?

1. Ship framing2. S h i p pl a t i n g3. C u t t in g t o o l s4. E l e c t r i c w i r i n g

2-13. E le c tr ic a l wi ri ng o n bo ar d sh ip i snormally made from which of thefo l lowing mater ia l s?

1. Brass

2 . T i n3. Copper4. Zinc

2- 14. W hi ch o f t he f ol lo wi ng m et al s ha s

t h e g r e a t e s t w e i g h t p e r u n i tvolume?

1. Bronze2. C a s t i r o n3. Lead4. C opp er -n ic ke l a ll oy

2-15. A 4- or 5-digi t SAP, number i s usedt o i d e n t i f y w h a t t y p e o f s t e e l ( s ) ?

1. P l a i n2 . A l l o y3. P l a i n a n d al l o y

2-16. A fr ee c ut t i ng st ee l w it h t he

c lass i f ica t ion SAE 1115 hasapproximately what percentage ofa l loy ing e lements?

1. 1% manganese and 0.15% carbon

2. 1 % ph os ph or us , 1% s ul fu r, a nd5% carbon

3. l l % c h r o m i u m a n d 5 % n i c k e l4. 11% phosphorus and 15% chromium

2-17. The SAE designator 1050 identifieswhat s tee l?

1. Carbon-molybdenum2. Nickel3. Carbon4. Copper-nickel

Ques t ions 2 -18 and 2 -19 re fer to

the aluminum alloy bearing theAluminum Association designation 5052-H16

2- 18 . T he nu mb er 50 52 id en ti fi es wh atmajor a l loy?

1. Magnesium2. S i l i c o n3. Manganese4. Copper

2-19. The number H16 identifies whatc h a r a c t e r i s t i c s o f t h e a l u m i n u m ' s

temper?

1. S t r a i n h a r d e n e d , t h e n p a r t i a l l

annealed and 1/4 hard2. S t ra in hardened on ly and 3 /4

hard3. S tr ai n h ar de ne d, th en

s t a b i l i z e d a n d 1 / 2 h a r d4. A r ti f i c ia l l y a ge d o nl y a nd 3/ 4

hard

2-20. What marking designation in theAluminum Association Marking System

iden t i f i es an a luminum tha t i s morthan 99% pure with no specialc o n t r o l o v e r i n d i v i d u a l i m p u r i t i e s

1. 10752. 19993. 20304. 3056

2-21. Th in copper wi re i s iden t i f i ed bywhat marking method?

1. C on ti nu ou s i d en ti fi ca ti on

marking2. Spot symbols3. P er ip he ra l s ym bo ls4. Tagging

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2 -2 2 . W ha t i nf o rm at io n is sho wn on me ta lsmarked with the continuous

iden t i f i ca t ion mark ing sys tem?

1. T he pr od uc er 's na me orreg i s t e red t rademark andcommerc ia l des igna t ion of thes t e e l

2. T he na me an d t ra de ma rk of th eproducer who f in i shed the s t ee lbefore i t was marketed

3. T he m il it ar y st an da rd sdes igna t ion and fede ra lgovernment job order number

4 . T he U. S. Bu re au of St an da rd squali ty control number and SAEdes igna t ion

2-23. I n a s pa rk t es t , yo u sh ou ld us emedium pressure against thegrinding wheel because hardp r e s su r e w i l l c a u se w h a t e f f e c t i nthe spa rk s t ream?

1. I t w i l l i n c r e a s e t h etempera ture o f the spa rk s t ream

a n d t h e b u r s t2. I t w il l c au s e t h e s p ar k s t re am

to be d imin i shed or e l imina ted3. I t wi l l ca us e t he co lo r o f th e

spark stream to change4. I t w i l l dec rease the number o f

f o r k s

2 -2 4. W hi ch o f th e fo ll ow in g st ee ls g iv eo f f t i n y b l o c k s o f b r i l l i a n t w h i t e

l i g h t ?

1. N i c k e l a l l o y2. High carbon3. Molybdenum4. S i l i c o n a l l o y

2 -2 5. W hi ch o f th e fo ll ow in g me ta ls

CANNOT be identified by a sparkt e s t ?

1. C a s t i r o n2. S t a i n l e s s s t e e l

3. Lead4. Wrought iron

2-26. When n i t r i c ac id p laced on a me ta l

produces a s low reac t ion and a pa legreen co lor , t he me ta l p robablycontains what element?

1. I r o n2. Copper3. Aluminum4. Nickel

2-27. N o r ea ct io n t o a ac id te sti n d i c a t e s w h a t t y p e o f s t e e l ?

1. Molybdenum2. Monel3. S t a i n l e s s4. Nicke l

2-28. Thermoplastics become hard andb r i t t l e w h e n h e a t e d .

1. True2. F a l s e

2-29. When you saw plastics, why shouldyou NOT feed the work into the sawt o o f a s t ?

1. You may bum the work becausep las t i c s do no t t ake away theheat produced by sawing

2 . You may make an e rror becausep las t i c can be sawed eas i ly andquick ly

3. The saw may become gummy withp l a s t i c c h i p s

4 . The saw may be broken becausesome p las t i c s a re tough

2 -3 0. M os t pl as ti cs c on ta in w hi ch o f th efo l lowing bas ic e l ement s?

1. Sodium chloride2. Carbon3. Aluminum4. S i l i c o n

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2-31. Which of the fo l lowing prac t i ces i s

2-32.

2-33.

l ikely to cause a power hacksawblade to b reak?

1. A pp ly in g co ol an t di re ct ly t ot h e b l a d e r a t h e r t h a n t o t h ework

2. F a i l in g t o a l i g n t h e c u tt i ngmark on the work with the blade

3. S ta rt in g th e ma ch in e w it h th eblade touching the work4 . U si ng a c oa rs e b la de to cu t

c a s t i r o n

On a power hacksaw, you should cutannea led h igh-ca rbon s t ee l w i thwha t type of b lade?

1. Coarse2. Regular3. Medium4. Fine

You are using a power hacksaw andc u t t i n g t h r o u g h a h a r d s p o t i n t h ework. T he f ee d is a u to ma ti ca ll ycont ro l l ed by wha t type of feedmechanism?

1. Hydr au lic on ly2. Grav i ty on ly3. H yd ra ul ic or gr av it y4. Mechanical

When a power hacksaw is used to cut2-34.th in s t ee l shee t , wha t min imumnumber of teeth must be kept incontac t w i th the work?

1. 82. 23. 104. 4

2-35. Which of the fo l lowing mate r i a l s i scut on a power hacksaw without theuse of a coo lan t?

1. M i l d s t e e l2. Carbon s t ee l3. C a s t i r o n4. Brass

Figure 2A

IN ANSWERING QUESTIONS 2-36 THROUGH 2-39REFER TO FIGURE 2A.

2-36.

2-37.

2-38.

2-39.

What i s the p i t ch of the sawsegment?

1. 72. 83. 94. 10

What is the width of the sawsegment?

1. 0.024 i n .2. 0.040 i n .3. 0.250 i n .4. 1.000 i n .

What is the gauge of the sawsegment?

1. 0.008 i n .2. 0.016 i n .3. 0.024 i n .4. 0.040 i n .

W h a t i s t h e s e t o f t h e t e e t h o f t h esaw segment?

1. 0.008 i n .2. 0.020 i n .3. 0.032 i n .4. 0.040 in .

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2-40. W ha t w il l t he co nt i nu ou s f e edc u t o f f s a w d o a u t o m a t i c a l l y a s i t

completes each cut?

1. R ai se t he sa w h ea d o nl y2. S to p t he dr iv e m ot or on ly3. S to p t he dr i ve mo to r a nd st a rt

the coo lan t motor on ly4. S to p th e dr iv e mo to r, s ta r t t he

c o o l a n t m o t o r , a n d r a i s e t h e

saw head

2-41. What saw band se t pa t te rn i s usedto cu t meta l p ipes?

1. Raker2. S t r a i g h t3. Wave4. Curve

2-42. The upper movable band guide of abandsaw should clear the workpieceby what maximum distance?

1. 1 i n .2. 2 i n .3. 3 /8 i n .4. 1/2 i n .

2-43. T he a br as iv e m at er ia l o n apo l i sh ing band i s car r ied on whattype of backing?

1. Trea ted paper2. F a b r i c3. S t e e l4. Rubber

2-44. When you are cu tt ing on a bandsaw,inadequate feed p ressure causeswhat problem?

1. I t b r e a k s t h e t e e t h o f t h e s a wband

2 . I t d u l l s t h e s a w b a n d3. I t snags the saw band

4. I t b inds the saw band in thework

2 -45. Manual work feed on a bandsaw i sgenera l ly used on ly on mater ia l s up

to what th ickness?

2- 46. T he g au ge o f t he s aw ba nd t ha t ca n

be used wi th a par t i cu lar band too lmach ine i s l imi ted by what fac to r?

1. The type o f feed2. The size of the band wheels

3. The type of band guide4. The range of band speeds

a v a i l a b l e

2-47. The quality of work produced with ameta l -cu t t ing bandsaw i s l imi ted bywhich o f the fo l lowing fac to rs?

1. The band speed2. The feed p ressure3. The band type4. Al l o f the a bove

2-48. When you place a saw blade in the j aws o f a b u t t we l d e r , t h e t ee t hshou ld face in what d i rec t ion?

1. Away f rom th e wel de r2. Toward the welder3. Awa y fr om the jaws4. Toward the jaws

2-49. The use o f a bu t t welder i srequ i red fo r what type o f cu t?

1. I n s i d e2. S t r a i g h t3. Angular4. Disk

2-50. To de termine the correc t l eng th o f a replacement band on a two-wheelbandsaw, you should take whatmeasurements?

1. Twice the circumference of onewheel p lus the d i s tance be tweenwheel cen ters

2. Twice the distance betweenwheel cen ters p lus thecircumference of one wheel

3. T wi ce th e s um of th e d is ta nc ebetween wheel cen ters p lus thecircumference of two wheels

4. Three t imes the d i s tancebetween wheel cen ters p lus thecircumference of one wheel

1. 1 i n .2. 1 1/2 i n .3. 1/2 i n .4. 1/4 i n .

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2- 51 . W ha t st ep f ol lo ws t he w el di ng a ndgr ind ing of a sp l i ced saw band?

1. Annealing2. Pol i sh ing

3. Quenching4. I n s t a l l i n g

2-52. Improper t rack ing of a newly

ins ta l l ed saw band i s cor rec ted bymaking what adjustment?

1. Band tension

2. Band guides

3. Backup bearings4. Whee1 t i l t con t ro l

2-53. A ft er r ep la ci ng t he b la de o n abandsaw, you should start sawing

us ing wha t amount o f t ens ion , i f any?

1. HeavyModerate2 .

3. L i g h t4. None

2-54. D r i l l i n g h o l e s a d j a c e n t t o s q u a r ecorne rs in a l ayout w i11 a l low you

to use what type of bandsaw blade?

1. Wider2. Narrower

3. Thinner4. Smal l e r

2-55. The work tab le on ly moves ve r t i ca l lyo n w h a t t y p e o f d r i l l p r e s s ?

1. General purpose

2. Heavy duty

3. S e n s i t i v e4. Radia l

2-56. A genera l purpose dr i l l p ress haswha t type of t ape r socke t to ho ld

d r i l l b i t s ?

1. J a rn o2. Pipe3. Morse4. Brown & Sharpe

2-57. To dr i l l a ho le on a heavy-dutyd r i l l p r e s s , y o u p o s i t i o n t h ew o r k p i e c e ; b u t o n a r a d i a l d r i l lp r e s s , y o u p o s i t i o n t h e d r i l l i n ghead.

1. True2 . F a l s e

2-58. A s en s i t i v e d r i l l p r e s s i sp a r t i c u l a r l y u s e f u l f o r w h a t t y p eof work?

1. Work requiring many holes to bed r i l l e d i n a l a r g e p i e c e o f metal

2. L ar ge c as t i ng s r eq ui r i ngholddown clamps during dr i l l ing

3. W o rk re q ui ri n g t he op e ra to r t ore ly on a sense or touch to

d e t e r m i n e h o w t h e d r i l l i s

c u t t i n g

4.Work requir ing high-speed

d r i l l i n g i n w h i c h v i b r a t i o n sa re no t ha rmful

2-59. W h a t p a r t o f a t w i s t d r i l l e n a b l e syou to remove i t from the socket?

1. Dead center2. Web3. Shank

4. Tang

2-60. W h a t s e p a r a t e s t h e f l u t e s o f at w i s t d r i l l ?

1. The p o in t2. The web3. The shank

4. the body

2-61. Y o u a r e u s i n g a t w i s t d r i l l w i t h ac u t t i n g s p e e d o f 8 8 f p m t o d r i l l al / 2 - i n c h h o l e . What is the

approximate speed of the d r i l l ?

1. 90 rpm2. 200 rpm3. 670 rpm4 . 750 rpm

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2-62. When you cut both a l loy steel andcas t i ron wi thout changing h igh-

s p e e d d r i l l b i t s o r s p e e d , w h a td r i l l s p e e d i s p r e f e r r e d ?

1. 50 fpm2. 70 fpm3. 100 fpm4. 150 fpm

2-63. T he f e ed o f a dr i l l pr es s isexpressed in wha t va lues?

1. C en t im et er s p er r ev ol u ti o n2. I nches p er mi nu te3. T ho us an dt hs of an in ch pe r

minute4. Thousandths of an inch per

r e v o l u t i o n

2-64. M os t of t he t wi s t d r i l ls y ou wi l luse are made from what material?

1. Carbon s tee l2. H ig h- car bo n s te el3. High-speed s tee l4. Cobal t

2-65. What i s the approximate cut t ings p e e d o f a 1 - i n c h t w i s t d r i l lrunning at 100 rpm?

1. 23 fpm2. 26 fpm3. 30 fpm

4. 36 fpm

2 - 6 6 . Y o u a r e g e t t i n g r e a d y t o d r i l l a n dyou want to l ine up the cente r -punch mark on the workpiece exactlyunder the sp indle . You wi l l f indi t use fu l to fo l low what procedure?

1. U se a d r i l l l a r ge r t ha n t herequi red s ize to make the leadhole

2. I ns er t a de ad ce nt er in t hes p i n d l e s o c k e t

3. Chisel a groove away from thepunch mark

4. Use a counte rbore p i lo t tog u i d e y o u r d r i l l t o t h e p u n c hmark

2-67. You can expec t a 2- inch dr i l led

hole to be overs ized by wha tamount?

1. 0.006 i n .2. 0.008 i n .3. 0.010 i n .4. 0.011 i n .

2-68. D r i l l i n g w i t h a t w i s t d r i l l t h a th a s c u t t i n g e d g e s o f d i f f e r e n tangles or unequa l length wi l lproduce what condition?

1. A rough fin i sh2. An oversized hole3. An und ersi zed ho le4. A warped workpiece

2-69. What type of shank is found on ar e a m e r d e s i g n e d f o r u s e i n a d r i l lp r e s s o r l a t h e ?

1. S t r a i g h t2. Tapered3. F lu ted4. Sp l ined

2-70. W ha t i s t he ra te of ta pe r o f ataper p in reamer?

1. 1 i n . p e r f o o t2. 1 / 3 i n . p e r f o o t3. 1 / 4 i n . p e r f o o t4. 1 / 8 i n . p e r f o o t

2 -7 1. W hi ch of th es e i te ms i s N OT us ed tomake an angular hole by the Wattsmethod?

1. A fl oa t i ng ch uck 2. A broach3. A gu ide p la t e4. A d r i l l p r e s s

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ASSIGNMENT 3

Tex tbook Assignme nt : " Of f hand Gr ind ing o f Too ls a nd S e le c t ion o f C a r b ide Too l ing , c ha p t5 , and Engine La thes ," chapte r 6 , pages 6-1 through 6-18 .

3-1. The number A100D15V identifieswhich of the fo l lowingc h a r a c t e r i s t i c s ?

1. C o a r s e g r i t a n d d e n s e s t r u c t u r e2 . F i n e g r i t a n d o p e n s t r u c t u r e3. Hard bond and aluminum oxide

a b r a s i v e4. S of t bo nd a nd s il ic on c ar bi de

abras ive

3 -2 . W ha t a br as iv e s ho ul d b e u se d t og r i n d s t e e l a n d s t e e l a l l o y s ?

1. S i l i c o n c a r b i d e

2. Corundum3. Diamond4. Aluminum oxide

3 -3 . N or ma ll y, a g ri nd in g wh ee lins ta l led on a bench gr inder shouldNOT exceed what thickness?

1. 1 in .2. 7 / 8 i n .3. 1 / 2 i n .4. 1 / 4 i n .

3-4. A hard grade grinding wheel haswhich of the fo l lowing qua l i t ie s?

1. A la rg e n um be r o f s tr on ga b r a s i v e g r a i n s

2. A small amount of bondsur rounding the abras ive gra ins

3. T hi ck b on d p os ts an d g re atr e s i s t a n c e t o g r i n d i n g p r e s s u r e

4. Thin bond pos ts of fe r ing

g r e a t e r r e s i s t a n c e t o g r i n d i n gp r e s s u r e

3-5 . W ha t s ta ti on in th e s ta nd ar dmarking sys tem indica tes thes t rength of a gr inding whee l?

1. Bond type

2. Bond grade3. Gr a i n s i z e4. S t r u c t u r e

3-6. A diamond grinding wheel markedD100C50B 1/8 has which of thef o l l o w i n g c h a r a c t e r i s t i c s ?

1. I t i s 1 / 8 i n c h w i d e2. I t conta ins manufac tured

abras ive3. I t s bond i s no t m od i f i e d4. I t h a s a g r i t s i z e o f 5 0

3-7. You should use what type of gr inding whee l to gr ind h igh-speeds t e e l ?

1. S i li co n c ar b id e

2. Diamond3. Corundum4. Aluminum oxide

3-8. A gr in di ng w he el g iv es o ff a du llthud when tapped with a piece ofhard wood. Wha t p roblem isindica ted?

1. O ut of ro un dnes s2. Warping3. I nv is ib le c ra ck s4. Excessive moisture

3-9. The use of a coolant a l lows you touse what grade of grinding wheel?

1. S o f t e r2. Harder3. Thicker4. Open

3-10. Thin cutof f whee ls should be s tore

w i t h o u t a n y s e p a r a t o r s o r b l o t t e r sbetween them.

1. True2. F a l s e

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3 -1 1. W he n f i ni s h g ri n di n g a ca rb i de to olb i t , you should use which of thefollowing gr inding wheels?

1. S i l i c o n c a r b i d e2. Diamond impregnated3. Aluminum oxide4. Emery

3-12. Y o u a r e g r i n d i n g a c a r b i d e t o o l b i ton a ca rb ide gr inder . I r r e g u l a rcoolant f low wi l l cause wha tproblem wi th the tool b i t?

1. C r a t e r i n g2. Edge wear3. Cracking4. Sof ten ing

3-13. When ins ta l l ing a gr inding whee l ona sp indle , you should use f langesand ca rdboard or rubber washers for

what purpose?

1. T o re mo ve pl ay o f t he wh ee l o nt h e s p i n d l e

2 . T o d i st ri b ut e e ve n p re ss u re an ddampen vibrat ion

3. To hold the wheel on thes p i n d l e

4. To gr ip the whee l so i t canr o t a t e w i t h t h e s p i n d l e

3-14. Leaving par t of a gr inding whee lsoaking in coolant wi l l cause wha t

problem?

1. Imbalance2. Out-of - roundness3. A gr oo ve d g ri nd in g s ur fa ce4. Cracks

3-15. A high-speed tool b i t i s moste f f e c t i v e o n i n t e r r u p t e d c u t s w h e ni t conta ins wha t e lement?

1. Tungsten2. Vanadium

3. Chromium4. Molybdenum

3-16. A chip breaker gr inder uses wha ttype of gr inding whee l?

3-17. What process is used to manufacturecemented ca rb ide cut t ing tools?

1. Welding2. Compressing powders and

s i n t e r i n g3. E l e c t r o l y zi n g4 . Thermal spray in g

3-18. A 5 0 p e r c e n t i n c r e a s e i n c u t t i n g

s p e e d w i l l d e c r e a s e a c a r b i d e t o o lb i t ' s l i f e b y w h a t p e r c e n t ?

1. 652. 703. 804. 90

3-19. What material is most widely usedf o r c u t t i n g t o o l s u s e d i n t h e

machining industry?

1. Cemen ted carb ide2. High-speed s tee l3. Ceramic4 . Diamond

3-20. Carbide inse r t breakdown is most

f requent ly caused by wha tproblem(s)?

1. Edge wear and cratering2. Too slow a speed3. Too much feed4. L a c k o f r i g i d i t y

3-21. When the radii on your carbidei n s e r t i s t o o l a r g e , i t c a n c a u s ewhat problem?

1. Chipping2. Edge wear3. C h a t t e r4 . C r a t e r i n g

3-22. What shape of ca rb ide inse r t i s thes t r o n g e s t ?

1. Square2. Round3. Hexagonal4. T r i a n g u l a r

1. S i l i c o n c a r b i d e2. Aluminum oxide3. Emery4 . Diamond

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IN ANSWERING QUESTIONS 3-33 THROUGH 3-35,REFER TO FIGURE 3A.

3-33. W hi c h a n gl e is t he s id e ra k e a ng le ?

1. A2. B3. C4. D

3-34. Which ang le i s the end re l ie f ang le?

1. A2. B

3. F4. G

3-35. Which ang le i s the back rake ang le?

1. D2. E3. F

4. G

3-36. When you are using a quick changet o o l p o s t a n d t o o l h o l d e r i n s t e a d o f a s tandard too lho lder , which o f thefo l lowing ang les wi l l change?

1. Nose2. S ide rake3. S ide cu t t ing edge4. E n d r e l i e f

3-37. When g r ind ing a l a the too l b i t , youshou ld per fo rm what s tep las t?

1. Gr ind the top

2. Hone the cu t t ing edges3. Gr ind the rad ius4. Me asur e t he widt h

3 -3 8. W ha t an gl e is le s s o n a sh a pe r to olb i t t h a n o n a l a t h e t o o l b i t ?

1. R e l i e f 2. Nose

3. Top4. Back

3-39. The inc ludedpunch shouldang le?

1. 302. 453. 604. 90

a n g l e o f a c e n t e rbe ground to what

3-40. The cu t t ing edge o f a genera l -use

m e t a l - c u t t i n g c h i s e l i s g r o u n d t o a6 0 i n c l u d e d a n g l e . T o c u t h a r d e rmater ia l , what change shou ld be

made to the cu t t ing edge?

1. H e a t t r e a t i t2. I nc re as e i ts a ng le3. L u b r i c a t e i t4. D ec re as e i t s a ng le

3-41. T h e c u t t i n g l i p a n g l e o f a t w i s t

d r i l l i s normal ly checked wi th whatgauge?

1. C u t t e r c l e a r a n c e2. Cen ter3. D r i l l - p o i n t4. V e r n i e r h e i g h t

3-42. T o o l i t t l e o r n o l i p c l e a r a n c e o n at w i s t d r i l l w i l l c a u s e t h e d r i l l t o

1. d i g i n2. d r i l l t o o f a s t3. c h a t t e r4 . f a i l t o d r i l l

3-43. The po in t o f a genera l purposet w i s t d r i l l i s g r o u n d t o w h a t

inc luded ang le?

1. 452. 593. 904. 118

3-44. Y ou a re d ri l l in g br a ss w it h a tw is td r i l l a n d i t h a s a t e n d e n c y t o b e

sucked in to the b rass . What parto f t h e d r i l l c a n y o u g r i n d s l i g h t l yf l a t t o c o r r e c t t h i s p r o b l e m ?

1. The web2. The po i nt

3. T h e f l u t e4. The shank

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3-45. The swing of a 16-inch by 8-footl a t h e i s 8 f e e t .

1. True2. F a l s e

3-46. What are the shapes of the ways ofa t y p i c a l l a t h e ?

1.Square or curved

2. Curved or V-shaped3. V - s h a p e d o r f l a t4. F l a t o r s q u a r e

3-47. Power i s app l ied to the workp ieceon a l a the th rough what par t o f thel a t h e ?

1. T h e t a i l s t o c k s p i n d l e2. The headstock spindle3. The crossfeed screw4. The dead cen ter

3-48. A la the heads tock sp ind le has ah o l e r u n n i n g t h r o u g h i t s c e n t e r f o rwhat purpose?

1. To permi t bars o r rods to passth rough the sp ind le

2. To improve the cooling of thegearbox

3. To permi t thorough lubr ica t iono f t h e s p i n d l e b e a r i n g s

4. To d i s s ipa te hea t f rom thec u t t i n g t o o l

3-49. The d i s tance be tween cen ters on anengine lathe may be adjusted bymoving what part (s)?

1. The headstock only2. T h e t a i l s t o c k o n l y

3. The ta i l s tock and heads tock

4. The car r iage

3-50. Rota t ion o f the ta i l s tock handwheelo n a n e n g i n e l a t h e r e s u l t s i nmovement of what part of the

t a i l s t o c k ?

1. The base2. The sp ind le-ad jus t ing screw

3. The top4. The clamp bolt

3-51. When an eng ine la the i s used fo rmi l l ing , the workp iece i s mountedon what par t o f the la the?

1. The headstock2. T h e t a i l s t o c k s p i n d l e

3. The car r iage4. The facepla te

3-52. O n a n e n g i n e l a t h e , t h e c a r r i a g e iu s u a l l y l o c k e d i n p o s i t i o n t operform which of the followingopera t ions?

1. Turning2. Facing

3. Boring4. D r i l l i n g

3-53. The apron i s d r iven by what par t ot h e l a t h e ?

1.The feed rod

2. The change gear3. The spindle

4. The back gear

3-54. What par t o f an eng ine la the i sa t t a c h e d d i r e c t l y t o t h e c r o s s f e e ds l i d e o f t h e c a r r i a g e ?

1. T h e c u t t i n g t o o l2. The workpiece

3. The too l pos t4. The compound rest

3-55. T h e h a l f - n u t i n t h e a p r o n i sengaged with the lead screw when aneng ine la the i s used fo r whatpurpose?

1. Turning2. Facing

3. Boxing4. Threading

3-56. Each gear in a quick-change gearbox cluster has what unique

d i f f e r e n c e ?

1. Bore s ize2 . T h i c k n e s s

3. G e a r r a t i o4. Color

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3 -5 7. A la th e y ou ar e w or ki ng on isequipped with a quick-change gearbox and a s l iding compound gear .One l eve r on the gea rbox has th reep o s s i b l e p o s i t i o n s w h i l e t h e o t h e r

l e v e r h a s s i x p o s i t i o n s . How manysc rew speeds a re ava i l ab le?

1. 62. 18

3. 34. 36

3 -5 8. F ee d s o n t he qu i ck - ch a ng e g e ar b o xa r e i d e n t i f i e d i n t e r m s o f t e nthousandths o f an inch pe r

1. second2. minute3. s p i n d l e r e v o l u t i o n4. f e e d r o d r e v o l u t i o n

3 -5 9. W ha t m et ho d i s u se d t o c ut th e

s e a t i n g a r e a o f a g l o b e v a l v e d i s k ?

1. T a i l s t o c k s e t o v e r2. Compound rest3. Taper a t t achment4. Forming tool

3-60. T he to ol po s t i s u se d o n ly top r o v i d e r i g i d s u p p o r t f o r t h et o o l h o l d e r .

1. True2. F a l s e

3-61. What type of work is done on al a t h e w i t h t h e h e l p o f a k n u r l i n gtoo l a t t achment?

1. Trimming an oversize metalworkpiece

2. Roughing the sur face of a roundmetal workpiece

3. Thread ing the ou t s ide of aso l id me ta l workpiece

4 . T hr ea di ng th e in si de o f a s ol idmetal workpiece

3 -6 2. W ha t t y pe of to o lh ol de r i s m os twidely used?

1. Bor ing ba r2. S tandard3. I n s e r t4 . Q u i c k - c h a n g e

21

3-63. Workpieces tha t have i r regu la rc r o s s s e c t i o n s a r e h e l d i n w h a ttype of l a the chuck?

1. S c r o l l

2. 4 - j aw3. S t an da rd c ol le t4. Hexagona l co l l e t

3-64. F or pr ec is io n tu rn in g of s ma ll

work , wha t type of l a the chuck i sp r e f e r r e d ?

1. Combination2. Unive rsa l3. Independent4. Draw- in co l l e t

3 -6 5. T o a ut o ma ti ca ll y c en te r r ou ndworkpieces of many sizes, what type

o f l a t h e c h u c k i s p r e f e r r e d ?

1. S c r o l l2. 4 - j aw3. S t a n d a r d c o l l e t4. Hexagona l co l l e t

3-66. D r a w - i n c o l l e t c h u c k c o l l e t s a r emanufactured in what increments?

1. 1 /64 in .2. 1 /32 in .3. 1 /16 in .4. 1 / 8 i n .

3 - 67 . W ha t i s t he ma in di ff er e nc e b e tw ee n

a t a i l s t o c k c e n t e r a n d a h e a d s t o c k c e n t e r ?

1. Sh ank t ape r

2. P o i n t t a p e r3. Metal hardness4. Diameter

3-68. The po in t o f a Morse t ape r cen te ri s g round to wha t inc luded angle?

1. 30

2. 45

3. 604. 75


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ASSIGNMENT 4

Textbook Ass ignment: "Eng ine Lathes. " chap ter 6 , pages 6 -19 th rough 6 -60 .

4 -1 . T he de pt h o f a cu t m ad e b y ami l l ing a t tachment on an eng inel a t h e i s c o n t r o l l e d b y t h e

1. lead screw2. c r o s s f e e d

3. t a i l s t o c k p o s i t i o n4 . l on g it ud in al f ee d

4 -2 . W ha t t yp e o f l a th e i s c on st r uc t edin such a way tha t a p iece can beremoved from its bed to accommodatework o f l a rge d iameter?

1. A genera l -purpose screw cu t t ing

p r e c i s i o n l a t h e2. A toolroom lathe

3. A gap lathe4. A bench lathe

4-3 . What tool should you use to removeb u r r s i n t h e t a i l s t o c k s p i n d l e o f al a t h e ?

1. A gr inder2. A t a i l c e n t e r c o a t e d w i t h

lapping compound3. A 60 taper reamer4. A Morse taper reamer

4-4 . The workpiece is mounted on thecarr iage in which o f the fo l lowingl a t h e o p e r a t i o n s ?

1. Turning2. Facing3. Threading4. Mi l l ing

4 -5 . Y o u m us t c e nt er dr i ll a l o ng pi e ceo f r o u n d s t o c k t h a t i s t o o l a r g e t obe passed th rough the sp ind le .

What l a the a t tachment i s used to

suppor t the end be ing cen terd r i l l e d ?

1. A f o l l o w e r r e s t2. A c e n t e r r e s t3. A b a l l b e a r i n g c e n t e r4. A dead center

4 -6 . To correc t misa l ignment o f l a thec e n t e r s , y ou sh ou ld ad ju st wh atp a r t o f t h e l a t h e ?

1. The headstock 2. The ways

3. T h e t a i l s t o c k 4. The sp ind le

4-7 . A la the cen ter i s mach ined to whatang le f rom the ax is o f the sp ind le?

1. 152. 303. 454. 60

4-8 . When you use a quick-changetoo l -ho lder , too l overhang shou ldNOT exceed what length?

1. Twice the leng th o f the ho lder2 . T wi c e t he wi dt h o f t he ho ld er

3. T hr ee t im es t he w id th of t hec u t t i n g t o o l

4. Twice the wid th o f the cu t t ingtoo1

4 -9 . I n a p ro pe rl y f or me d c en te r ho le .t h e l a t h e c e n t e r s r e s t a g a i n s t w h a t

a r e a ?

1. T he bo tt o m o f t he dr i ll e d h ol e2. The s ides o f the coun tersunk

h o l e3. Th e i nn er ri m of th e

countersunk hole4. Th e o ut er ri m of th e

coun tersunk ho le

4 -1 0. W ha t is t he m os t ac cu ra te m et ho d o f

p l a c i n g a c e n t e r h o l e i n a s h a f t ?

1. Boring2. D r i l l i n g3. Reaming4. I n s e r t i n g

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4 -1 1. W hi ch o f th e fo ll ow in g wo rk pi ec esshould be tu rned on a sof t mandre l?

1. A p l a s t i c g e a r b l a n k f o r a

1 / 4 - i n c h s h a f t

2. A b r a s s p u l l e y f o r a 1 / 2 - i n c h

s h a f t3. A s t e e l c o l l a r w i t h a

nons tandard ins ide d iamete r

4. A s t e e l s p i n d l e w i t h anons tandard ou t s ide d iamete r

4 -1 2. T he si ze of a m an d re l i s a lw ay smarked on what area?

1. The smal l end ins ide d iamete r

2. The l a rge end ins ide d iamete r

3. The small end

4 . The l a rge end

4-13. D r i v i n g t o r q u e i s u s u a l l y a p p l i e dto a mandre l th rough wha t l a the

accessory?

1. A l i v e c e n t e r

2. A lathe dog3. A co l l e t chuck 4. A dr i l l chuck

4-14. The cen te r ing of a rough cas t ing in

a 4-jaw independent chuck should bechecked by what method?

1. T a k e a l i g h t t e s t c u t

2. Hold a p iece of cha lk aga ins t

the ro ta t ing work 3. B r i n g t h e t a i l c e n t e r a g a i n s tthe face of the work

4. L o c a t e t h e a x i s o f t h e

c y l i n d r i c a l p o r t i o n w i t h a

combinat ion square

4 -1 5. S ev e ra l d u pl ic at e p ie ce s o f w or k may be held on what type of mandrel?

1. Expansion

2. E c c e n t r i c

3. Commercial4. Gang

4-16. When using a 4-jaw chuck and youhave a ve ry smal l run-outto le rance , you should use wha tgauge to true the work?

1. A di a l i n di c at o r

2. A d i a l v e r n i e r3. A center gauge4. An edge finder

4-17. When work is held in a draw-in

co l l e t chuck for p rec i se machin ingwhat is the maximum allowabled i f fe rence be tween the d iamete r o f t h e c o l l e t a n d t h e d i a m e t e r o f t h ework?

1. 0.00001 i n .2. 0.0001 i n .3. 0.001 i n .4 . 0.002 i n .

4-18.When you chuck a thin-walled

c y l i n d e r i n a l a t h e , y o u s h o u l dtake which of the fo l lowing

precau t ions?

1. Inse r t paper o r sh im s tock under the chuck jaws

2. Expand the chuck jaws against

the bore o f the work 3. U se o nl y en ou gh ja w p re ss ur e t o

p r e v e n t s l i p p i n g

4. A d j u s t t h e j a w s i n d i v i d u a l l y t op r e v e n t d i s t o r t i o n

4-19. When mount ing i r regular ly shapedwork on a lathe, you can use anangle p la t e in con junc t ion wi th a

f a c e p l a t e .

1. True

2. F a l s e

4-20. To keep work f rom s l ipp ing , i t i sgood prac t i ce to p lace wha tmaterial between the work and thef a c e p l a t e ?

1. Wood2. Rubber

3. Paper4. F e l t

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4- 21. C ut ti ng s pe ed s o n a l at he a res t a t e d i n w h a t u n i t s .

1. Revolutions per minute2. Fee t per minu te3. I n c h e s p e r r e v o l u t i o n4. Thousand ths per revo lu t ion

4 -2 2. A 1- i nc h p ie c e o f r o un d s to c k t ha th a s a c u t t i n g s p e e d o f 1 0 0 f e e t p e r

minu te shou ld be run a tapproximately what speed?

1. 382 rpm2. 400 rpm3. 764 rpm4. 1200 rpm

4-23. T o o f f e r t h e g r e a t e s t s u p p o r t , ac e n t e r r e s t s h o u l d b e p l a c e d i nwhat pos i t ion?

1. N e a r t h e t a i l s t o c k

2. In the midd le o f the work 3 . N ea r t he he ad st oc k 4. On top of the work

4 -2 4. F or gr e at er a cc ur ac y wh en f ac in g aworkp iece to a g iven th ickness , youshou ld se t the compound res t a twhat angle?

1. 10

2. 153. 304. 45

4- 25. A de pt h o f c ut of 0. 04 0 i nc hr e d u c e s t h e d i a m e t e r o f a l a t h eworkpiece what amount?

1. 0.020 i n .

2. 0.040 i n .3. 0.080 i n .4 . 0.120 i n .

4-26. W hi ch o f t he f ol lo wi ng l at he

o p e r a t i o n s r e q u i r e s t h e h i g h e s tcu t t ing speeds?

1. Rough facing2. Rough turning3. Thread cu t t ing4. F i n i s h t u r n i n g

4-27. Which of the following is NOT anadvan tage o f us ing coo lan t?

1. A heav ier feed

2. A he av ie r d ep th o f c ut3 . P r ol on ge d c ut t i ng to ol l i fe4. A slower speed

4-28. Which o f the fo l lowing ac t ions wi l lh e l p s t o p c h a t t e r i n a l a t h e t o o l

b i t ?

1. I ncr ease speed2. S tr en gt he n th e to ol s up po rt

t r a i n3. Decrease feed4. G ri nd a l ar ge r r ad iu s o n t he

t o o l b i t

4-29. You are rough tu rn ing a shaf t on al a t h e . Y ou s houl d l ea ve thediameters oversize by what amountf o r f i n i s h i n g ?

1. 1 /64 in .2. 1 /32 in .3 . 1 /16 in .4 . 1 / 8 i n .

4-30. Shoulders are commonly located with

a p a r t i n g t o o l t o e l i m i n a t e t h eneed fo r what p rocess?

1. Us ing a po in ted tu rn ing too l

2. Fac ing the shou lder3. C ut t i n g a f i l l e t

4 . Deta i led measur ing o f l eng thsdur ing tu rn ing

4-31. A p a r t i n g t o o l i s s e t a t w h a t a n g l ef r o m t h e c e n t e r l i n e ?

1. 302. 453. 604. 90

4- 32. F ai lu re t o a pp ly en ou gh fe edp r e s s u r e t o a d r i l l b i t i s l i k e l y

to cause what problem?

1. A n o ve rhe at ed d ri ll2 . C h a t t e r3 . A damaged workpiece4. A broken bit

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4-33. When a boring bar is mountedbetween cen ters on a l a the , youshould use which of the followingfeeds?

1. Compound-rest2. Cross

3. Long i tud ina l

4. Both 2 and 3 above

4-34. You plan to machine ream a 1.000inch ho le . You shou ld f i r s t borethe hole undersize by what amount?

1. 1 /64 in .

2. 1 /32 in .

3. 1 /16 in .

4. 1 / 8 i n .

4-35. In roughing and knur1ing a metal,the roughing speed should be inw h a t r e l a t i o n t o t h e k n u r l i n g

speed?

1. One-ha l t

2. Equal to3. Two-times

4. Three times

4 -3 6. W he n y ou op er at e a to ol po stg r i n d e r , e x ce s si z e s p ee d w i ll c au s ewhich of the following problems?

1. Overheated work2 . An overhea ted g r ind ing wheel

3. Over size d work 4. C h a t t e r

4-37. What type o f wheel d resser i s usedto d ress a too lpos t g r ind ing wheel?

1. Carbide2. Aluminum oxide

3. Diamond

4. Ceramic

4-38. The sp ind le speeds o f a too lpos tgrinder are changed by what means?

1. A n e l e c t r i c s w i t c h

2. V a r i o u s s i z e s o f p u l l e y s3. Change gears

4. V a r i o u s s i z e s o f s p i n d l e s

4 -3 9. W ha t ar ea o f t he t oo lp os t gr in de ri s u s e d t o c e n t e r i t o n t h e l a t h e ?

1. The housing2. T he sp in dl e ce nt er h ol e3 . T h e m o t o r4. The ways

4 -4 0. W he n s et ti ng ov er t he t ai ls to ck tocu t a t aper , you shou ld use whatgauge for the f ina l ad jus tment?

1. A bevel p ro t rac to r2. A s ine bar3.

4.A d i a l i n d i c a t o rA vernier height gauge

4-41. W ha t t ap er ha s t he gr ea te stincluded angle?

1. Brown and Sharp2. Morse3 . Mi l l ing mach ine4. Pipe

4-45. A 4-inch long tapered workpiece has

a diameter of 3 inches on one endand 3 3 /8 inches on the oppos i teend. What i s the taper per foo t othis workpiece?

1. 1 1/8 in.2. 1/8 i n .3. 3 /8 in .4. 1 /2 in .

4-43. S h o r t , s t e e p t a p e r s a r e u s u a l l y c uon a l a the by us ing which o f thefollowing methods?

1. Taper-a t tachment2. Compound-rest3. O f f s e t - c e n t e r

4. Simultaneous-feed

4-44. To accura te ly bore a long taper ona l a t h e , what method is best?

1. Plunge-cu t2. T a i l s t o c k - s e t o v e r

3. Taper-attachment4 . Compound-rest

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4 -5 4. W ha t i s th e in cl ud ed a ng le of a nAcme screw thread?

1. 142. 293. 304. 45

4-55. Square threads a re used for whicho f t h e f o l l o w i n g a p p l i c a t i o n s ?

1. Lead screws

2. Body bond studs3. Jack screws4. J e w e l e r ' s s c r e w s

4-5 6. T o c ut sq ua re th re ad s w it h a1/4- inch p i tch on a sc rew, youshould use a tool wi th wha t cu t t ingedge width?

1. 0.125 i n .2. 0.127 i n .

3. 0.500 i n .4. 0.502 i n .

4 -5 7. A t ap er ed p i pe t h re ad ha s w ha tamount of taper?

1. 1 / 8 i n . p e r f t

2. 1 / 4 in . pe r f t3. 1 / 2 i n . p e r f t4. 3 / 4 i n . p e r f t

4-58. T he t ol er an ce o f a th re ad i nc re as es

as the c lass number inc reases?

1. True2. F a l s e

4 -5 9. W ha t m et ho d o f c he ck in g t he fi t o f threads i s the most accura te?

1. A go no-go gauge2. A thread micrometer3. Wires4. A s cr ew p it ch g au ge

4-60. When a thread micrometer is notava i lab le , you can measure thepi tch d iamete r of a V- form threadwith what gauge?

1. A dept h mi cro met er2. A fee le r gauge3. A n or di na ry mi cr om et er an d

t h r e e w i r e s

4 . A plug gauge

4-61. When you are cutting V-formt h r e a d s , i t i s c u s t o m a r y t o p l a c ethe compound res t of the la the a twhat angle?

1. 14 1/22. 29 1/23. 304. 45

4-62. When cut t ing in te rna l threads on along shaf t , you should use wha tla the a t tachment?

1. F o l l o w e r r e s t2. T a i l s t o c k 3. S t e a d y r e s t4. Six-jaw chuck

4 -6 3. W he n y ou ar e t hr ea di ng an d a to olbit becomes misal igned, you shouldturn wha t sc rews to cor rec t theproblem?

1. Compound rest and lead2. C ro ss fe ed a nd le ad3. Compound rest and cross feed4. C om po un d r es t a nd ta il st oc k

4-64. What gauge i s used to accura te ly

c o u n t f i n e p i t c h e s o f s c r e wthreads?

1. Rule r2. Screw pitch

3. P r o t r a c t o r4. Micrometer

4-65. A v er y li g ht cu t is u su al l y t u rn ed

o n t h e s u r f a c e o f w o r k t h a t i s t o

be threaded to check whatmeasurement?

1. The thread angle2. T he r oo t d ia me te r3. The p i t ch4. The c res t wid th

4-66. W ha t p ar t o f a la th e i s u se d t odetermine when to engage theh a l f - n u t s ?

1. The lead screw2. T he m ic ro me te r c ol la r3. The th read s t op4. The thread d ia l

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4 -6 7. T o cu t od d- nu mb er ed t hr ea ds , th eha l f -nuts a re engaged a t anynumbered line.

1. True2. F a l se

4-68. The most common chamfer used tof i n i s h t h e t h r e a d o f a c a p s c r e w h a swhat angle?

1. 152. 303. 454. 60

4-69. T o cu t a t hr ea d w it h a t r i pl e le adand 18 threads per inch , you shouldset up the lathe to cut how manythreads per inch?

1. 62. 123. 184. 54

4 -7 0. W he n cu tt i ng mu lt i pl e- le ad t hr ea dson a facepla te , the number of leadstha t you can cut i s de te rmined byw h a t c h a r a c t e r i s t i c o f t h e f a c ep l a t e ?

1. Diameter

2. Number of slots3. Thickness4. Length

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ASSIGNMENT 5

Textbook Assignment: "Milling Machines and Milling Operations," chapter 7.

5 - 1 . When only one type of knee and

co lumn mi l l ing mach ine can bei n s t a l l e d . I t w i l l u s u a l l y b e w h a tt y p e ?

1 . B e d2 . V e r t i c a l s p i n d l e3 . U n i v e r s a l4 . P l a i n

5 - 2 . A u n i v e r s a l m i l l i n g m a c h i n e h a swhat main advan tage over thev e r t i c a l s p i n d l e a n d p l a i n t y p e ?

1 . The tab le moves in twod i r e c t i o n s

2 . T h e t a b l e s w i v e l s o n t h e s a d d l e

3 . T h e c o n s t r u c t i o n i s m o r e r i g i d4 . T h e s p i n d l e i s o n a h o r i z o n t a l

a x i s

5 - 3 . What mi l l ing mach ine i s the mos te f f i c i e n t f o r t a k i n g d e e p c u t s a tr a p i d r a t e s o f f e e d a n d s p e e d ?

1 . P l a i n

2 . U n i v e r s a l3 . U n i v e r s a l w i t h a h i g h - s p e e d

v e r t i c a l m i l l i n g a t t a c h m e n t

4 . V e r t i ca l s p i nd l e

5 - 4 . T h e s p i n d l e c a n b e f e d i n t o t h e

w o r k o n w h a t t y p e o f m i l l i n gm a c h i n e ?

1 . U n i v e r s a l2 . P l a i n3 . B e d4 . V e r t i c a l s p i n d l e

IN ANSWERING QUESTIONS 5-5 THROUGH 5-8,MATCH EACH COMPONENT IN COLUMN A WITHITS DESCRIPTION IN COLUMN B.

A. COMPONENTS

5-5. Column

5-6. Knee

5-7. Saddle

5-8. Table

B DESCRIPTIONS

1. The supportf o r t h e t a b l eand saddle

2. A movablesuppor t towhich theworkp iece i sfas tened

3. Used top o s i t i o n t h ework closer

t o , o r f a r t h e rf rom, thecolumn

4. The maincas ing

5-9. T h e c u t t i n g t o o l o f a m i l l i n gmachine is driven by what

component?

1. A work holder

2. The overarm dovetail

3 . A n a r b o r s u p p o r t4. The spindle

5-10. The s ize o f a mi l l ing mach ine i sdetermined by what factor?

1. The height of the mainc a s i n g i n f e e t

2. The long i tud ina l t ab let r a v e l i n i n c h e s

3. The leng th o f the tab lein inches

4. The su r face a rea o f thet a b l e i n f e e t

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5-11. Which o f the fo l lowing v i ses

p r o v i d e s t h e l e a s t r i g i d i t y ?

1. Swivel2. P l a i n3. Too lmakers un iversa l4. P la in fl an ge d s wi ve l

5-12. T he ou te r en d o f a n a rb or isa l igned wi th the sp ind le by what

milling machine component?

1. The overarm2. The co lumn3. The knee4. T he a rb or s up po rt

5-13. The base o f a ro ta tab le too lmakers

knee i s g raduated in whatincrements?

1. Degrees2. Seconds

3. Inches4. T ho us an dt hs of an in ch

5-14. What milling machine attachment isused to hold stock being machined

in to a gear?

1. A swive l vi se2. A un iversa l v i se3. A dividing head4. A ce n t e r re s t

5-15. W he n cu t t in g a he l i ca l ge ar , th e

s h o r t e s t l e a d p o s s i b l e i s p r o v i d e dby what drive mechanism?

1. T h e l o w l e ad dr i ve2 . T h e l o n g a n d s h o r t l e a d d r i v e3 . T he en cl o sed d ri v in g m echan is m4. T he he l i ca l d ri ve un i t

5 -1 6. R ap id i nd ex in g i s ac co mp li sh ed b ywhat means?

1. A n i nd ex he ad se ct or2. A d ir ec t i nd ex p la te

3. A un iv er sa l d iv id in g h ea d4. A compound index plate

5-17. E igh t comple te tu rns o f the indexcrank wi l l move a un iversa l

d iv id ing head sp ind le what f rac t iono f a r e v o l u t i o n ?

1. 1/402. 1 / 83. 1/54. 1/3

5-18. You are given a piece of work tod iv ide in to 12 par t s and you have a2 4 - h o l e i n d e x p l a t e a v a i l a b l e . T omake each division, you shouldrevo lve the index crank on theindex plate what amount?

1. 1 complete t u rn and 3 ho le s

2. 1 complete t u rn and 8 ho le s3. 3 complete t u rn s and 3 ho le s4. 3 complete t u rn s and 8 ho l es

5-19. You are g iven a p iece o f work tha t

i s to be d iv ided in to 960 par t s andyou have a 24-ho le index p la tea v a i l a b l e . To make each division,you shou ld revo lve the index crank

on the index plate what amount?

1. 1 ho le2. 2 h o l e s3. 6 h o l e s4. 12 h o l e s

5-20. You are using a 27-hole indexp l a t e . To move the circumference

of the work l l , you shou ld tu rnthe index crank what amount?

1. 1 t u r n and 2 h o l e s2. 1 t u r n and 4 h o l e s3. 1 t u r n and 6 h o l e s4. 1 t u r n and 8 h o l e s

5-21. You are using a 21-hole index

p l a t e . To move the circumferenceof the work 180 minutes, you should

turn the index crank what number of

ho les?

1. 62. 73. 34. 9

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5-22. Y o u a r e d i f f e r e n t a l i n d e x i n g f o r72 d iv is ions . Your se lec ted number

i s 1 0 . I n a 2 1 - h o l e c i r c l e i n d e x

p la t e , you shou ld tu r n the inde xcrank what number of holes?

1. 82. 2

3. 124. 4

F igur e 5A. - - 12 ho le c i r c l e .

IN ANSWERING QUESTION 5-23, REFER TOFIGURE 5A.

5-23. F iv e h ol es ar e r eq ui re d f orindexing and the index p in i si n se r t ed i nt o ho l e 1 . I n a 12 -h ol ec i r c l e , what hole should be covered

by the r ight a rm of the indexs e c t o r ?

1. Hole 53. Hole 63. Hole 7

4. Hole 8

5-24. P la in mi l l ing cut te r s have wha tp r i n c i p a l c h a r a c t e r i s t i c ?

1. They have tee th on thec i rcumference only

2 . T h e y h a v e o n l y s t r a i g h t t e e t h3. T he y al wa ys h av e he li ca l te et h

4. T he y h a ve te et h on t he en d on l y

5 - 2 5 . C u t t e r s a r e a t t a c h e d t o w h a tpar t ( s ) of a mi l l ing machine?

1. A pla in a rbor or a rbor yoke2. A screw arbor3. A co ll et or ad ap te r4. A n a r b o r o r d i r e c t l y t o t h e

sp ind le

5-26. What type of cu t te r i s groundt h i n n e r t o w a r d i t s c e n t e r t oprovide c lea rance be tween thecut te r and the work?

1. A p l a i n m i l l i n g c u t t e r2. A s i d e m i l l i n g c u t t e r3 . A m e t a l s l i t t i n g s a w4. A she l l and mi l l

5-27. What type of cu t te r can be used inp a i r s t o m i l l s l o t s ?

1. H a l f - s i d e m i l l i n g c u t t e r s2. S id e m il li ng cl ut te rs wi thi n t e r l o c k i n g t e e t h

3. M e ta l sl it ti ng s aw s4. H a l f - s i d e m i l l i n g c u t t e r s w i t h

a meta l s l i t t ing saw be tween

5-28. Dove tai l ways a r e c u t wi th wha tt y p e o f m i l l i n g c u t t e r ?

1. A si de mi l l in g c ut te r2 . A m e t a l s l i t t i n g s a w3. A s l o t t i n g c u t t e r

4. An an gle cu t te r

5-29. S he ll en d m il l s u s ua l ly h a ve w h att y p e o f t e e t h ?

1. S t r a i g h t2. He l i c a l3. Concave4. Convex

5- 30 . W ha t t yp e o f e nd mi ll ca n b e f edi n t o t h e w o r k l i k e a d r i l l ?

1. S h e l l2. Two-flute

3. M u lt ip le -f lu te4. Convex

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5-31. Woodruf f keysea t cu t te r s le ss than1/2 inch in d iamete r usua l ly havea / a n

1. a r b o r2. shank 3. s t u b a r b o r4 . a rbor suppor t

5-32. What type of cu t te r can be

m a n u f a c t u r e d l o c a l l y t o c u t avar ie ty of forms?

1. A f l y c u t t e r2. A c or ne r- ro un di ng c ut te r3. A conv ex cut ter4 . A gear hub

5-33. F or mi l l i ng t hi n ma te ri a l , yo us h o u l d s e l e c t w h a t t y p e o f c u t t e r ?

1. Coars e- t oot h2. F i n e - t o o t h3. S t r a i g h t4. H e l i c a l

5-34. Before you t ighten or loosen thearbor nut , wha t mi l l ing machinecomponent must be in place?

1. The saddle2. The t r ip dog3. The feed d ia l4. T he ar bo r s up po rt

5-35. P la in mi l li n g i s th e p ro ce ss o f m i l l i n g a f l a t s u r f a c e i n a p l a n ep a r a l l e l t o t h e c u t t e r a x i s .

1. True2. F a l s e

5 -3 6. W he n se tt in g up a mi ll in g ma ch in e,you should de te rmine tha t thes u r f a c e o f t h e w o r k i s j u s tt o u c h i n g t h e t e e t h o f t h e c u t t e r b ywhat method?

1. I n s e r t a t h i n f e e l e r g a u g eb e t w e e n t h e t e e t h o f t h e c u t t e rand the work

2. R a i s e t h e w o r k u n t i l t h e c u t t e r

s t o p s i t , t h e n b a c k o f f s l i g h t l y

3. With the cut te r turn ing s lowly ,b r i n g t h e w o r k u p u n t i l i ts t o p s t h e c u t t e r

4. With a p iece of paper on thework sur face , ra ise the work u n t i l t h e r o t a t i n g c u t t e r p u l l st h e p a p e r

5 -3 7. W he n fa ce m il li ng , yo u sh ou ld f ee dt h e w o r k s o t h e c u t t e r t h r u s

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