General Main

8/17/2019 General Main

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GENERAL ENGINEERING KNOWLEDGE (GENERAL)

1. What type of tubes used in Air o!p oo"er#

A. $prin% type

&. f"oatin%

'. type

D. fied type

*. +he ,ater fro! dishar%e side of the entrifu%a" pu!p is supp"ied as sea"in% ,ater to the stuffin%bo for the pu!p shaft at-

A. Sealing ring

B. Shaft sleeve

C. Lantern ringD. Neck bush

. Whih of the fo""o,in% ,ou"d be the orret ,ay(s) of usin% a tor/ue ,renh#

A. Application of jerk pulls while tightening

B. Using an extension

C. ightening be!on" the characteristic clicking soun"

D. None of the above0. 'hro!iu! is a nob"er !eta" ,hen o!pared to that of stee". In so!e !arine app"iations

'hro!iu! is e"etrop"ated to the stee" surfaes. Why#

A. 'hro!iu! is a !ore nob"e !eta" so it ,i"" not %et orroded and thus stee" surfaes ,i""

re!ain proteted

&. 'hro!iu! p"atin% proides orrosion protetion as ,e"" as hi%h %"ossiness and hi%h

hardness for better ,ear resistane and redued frition to the stee" surfaes

C. Chro#iu# plating is re$uire" for provi"ing high glossiness an" high har"ness for better wear

resistance an" re"uce" friction to the steel surfaces an" not for corrosion protection

D. Chro#iu# reacts with steel to for# an allo! "uring electroplating which is corrosion resistant

2. 'orret !ethod of %reasin% a entrifu%a" pu!p bearin% is-

A. +o pu!p the %rease unti" you fee" hi%h ba3 pressure on the Grease pu!p

&. +o pu!p the %reasefor 40 pu!pin% stro3es of Grease pu!p for eah bearin%

'. +o pu!p the %rease ,hen the pu!p is stopped and drain any o"d %rease at the sa!e ti!e

by openin% the drain p"u%5 %iin% on"y 40 pu!pin% stro3es on Grease pu!p for eah bearin%.

the drain p"u% shou"d then be rep"aed

D. +o pu!p the %rease ,hen the pu!p is runnin% and drain any o"d %rease at the sa!e ti!e

by openin% the drain p"u%5 unti" a"" the o"d %rease is re!oed and ne, %rease starts o!in%

out of the drain5 repeatin% sa!e for eah bearin%. the drain p"u% shou"d then be rep"aed


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6. 'entrifu%a" pu!ps annot hand"e air and re/uire pri!in%. &ut you are a,are that entrifu%a"

,hih on the sa!e prinipa" an hand"e air ery ,e"". Whih t,o properties of air are

responsib"e beause of ,hih the entrifu%a" pu!ps annot hand"e air-4

A. 7"uidity on"y

&. Density on"y

'. &oth f"uidity and density

D. 'o!pressibi"ity

8. 9u!p drien "uth type attahed auu! pu!ps are o!!on"y used for pri!in% ba""ast pu!psand e!er%eny fire pu!ps. What is the fator ,hih "uthes the auu! pu!p "uth to

the pu!p "uth durin% start of the pu!p#

A. Lo, sution pressure atin% a%ainst the sprin% "oaded "uthin% piston

&. :i%h sution pressure atin% a%ainst the sprin% "oaded "uthin% piston

'. Lo, dishar%e pressure atin% a%ainst the sprin% "oaded "uthin% piston

D. :i%h dishar%e pressure atin% a%ainst the sprin% "oaded "uthin% piston

;. It is %ien that en%ine roo! bi"%e pu!p has sution !anifo"d on ,hih a"es are "oated. One

a"e for the en%ine roo! bi"%e ,e""s sution5 another one for &i"%e tan3 sution and the

third one is for sea ,ater sution. It is found that the &i"%e pu!p is unab"e to ta3e sution

fro! any of the bi"%e ,e""s5 but is ab"e to ta3e sution effiient"y fro! &i"%e tan3. What is

the !ost probab"e ause#

A. 9u!p sution fi"ter oer %as3et "ea3in%

&. $ution fi"ter oer %as3et of one of the &i"%e ,e""s is "ea3in%

'. &i"%e ,e"" sution pipe"ine "ea3in% bet,een indiidua" bi"%e ,e"" a"es and sution

!anifo"d a"e

D. &i"%e pu!p sution pipe"ine "ea3in% bet,een the !anifo"d and the pu!p


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)ba"" @

d)p"u% @

1. E!er%eny steerin% testin%

+. ,eekl!

-. onthl!/. At least / #onths

0. Before arrival n "eparture

10. Rudder is "o3ed at an an%"e ? an be !oed by !anua" han%e444444441. 7o""o, up

*. Non fo""o, up

12. E':ANI'AL $EAL$ ARE NO+ $ED IN....

1. LIBID LINE

*. LIBID WI+: CA9OR LINE

. LIBID WI+: DIR+ LINE

0. ALL O7 +:E A&OCE

16. When seurin% a entrifu%a" disti""ate pu!p5 ,hih of the "isted steps shou"d be arried out

7IR$+#

1. $top the pu!p.*. '"ose the pressure %a%e a"es.

. +rip the three4,ay so"enoid a"e.

0. '"ose the sea"in% "ine a"es to the pu!p.

18. Whih of the fo""o,in% a"es annot preent ba3f"o, of "i/uid in a pipe"ine#

A. Gate a"e

&. G"obe 'he3 Ca"e

'. $,in% 'he3 Ca"e

D. An%"e he3 a"e

1;. After your oerhau" a entrifu%a" pu!p is not rotatin% ,hat !ay be the possib"e ause-

a. neen ti%htenin% of asin% bo"ts

b.Gas3et thi3ness ery thin.ore ,ear rin% "earane

d.On"y a

e. a and b

f. a and

1


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**. After "eanin% the sea hest fi"ter you hae p"aed the fi"ter in the body and ti%htened the oer.

Whih one of the fo""o,in% is the best a"ternatie#

A. ou an open the fi"ter in"et and out"et a"es ? diret"y start usin% the fi"ter

B. )f !ou "o not want to use the sea chest in $uestion2 !ou nee" not worr! an" !ou can open the

valves when re$uire" C. Sea ,ater inlet valve shoul" be crack opene"2 the filter bo"! shoul" be purge"2 an! leakages

an" thereafter filter can be kept isolate" or use" as re$uire"

D. 3ou will close the other si"e sea chest valves first an" then open this si"e sea chest filter inletan" outlet valves

*. In ,hih of the fo""o,in% types of refratory fai"ure5 softenin% of the refratory bri3s ta3es p"ae

due to presene of sodiu!@anadiu! in fue"#

A. $pa""in%

&. 'ra3in%

'. $hrin3a%e ra3in%

D. $"a%%in%

*0. entrifu%a" pu!p ,i"" typia""y %ie you a "o, f"o, rate at a "o,er pressure5 ,here a piston pu!p

,i"" %ie you !ore pressure and hi%her f"o, rate. Is the state!ent orret#

A.+REB.%ALS4

C. %irst Sentence is right. Secon" one is wrong

D. ) "on5t know

*2. ou are pu!pin% out s"ud%e to a shore fai"ity usin% your s"ud%e pu!p. ou find that the

dishar%e rate of pu!p is ery s"o, and sution fi"ter is %ettin% "o%%ed fre/uent"y. What is the best

a"ternatie to ounterat the prob"e!#

A. 1e#ove the pu#p suction filter an" pu#p out the tank

B. )ncrease the tank te#perature2 keep an e!e on the pu#p suction pressure an" clean the filter as

soon as it "ropsC. As soon as the as the shore facilit! tells !ou that the! are not receiving an! slu"ge2 !ou stop the pu#p an" clean the filter

D. %abricate a bigger #esh si6e suction filter an" use in place of nor#al filter so that fre$uenc! of

filter blockage is re"uce" an" !ou can get a better "ischarge rate

*6. 9u!p $tart but otor %et oer"oaded or +rip on oer"oad.

A. A"i%n!ent is ,ron%

&. G"and pa3in% too ti%ht

'. Worn out @ Da!a%ed ba"" bearin%

D. 'aitations eists

E. A"" of the aboe

*8. A ba"" a"e is found "ea3in% in serie and needs to be oerhau"ed. What type of repairs an bearried out#

a. +he ba"" and seat an be "apped to%ether

b. +he ba"" an be !ahined ,hi"e the seat an be rep"aed

. Nor!a""y both the non4!eta""i seats %et ,orn out and hae to be rep"aed

d. Nor!a""y ba"" %ets da!a%ed and has to be rep"aed

*;. +he differene bet,een the dishar%es of a entrifu%a" pu!p n reiproatin% pu!p

the dishar%e of entrifu%a" pu!p is 4444444444,hi"e that if reiproatin% is 444444444

A) +urbu"ent5 La!inar

&) Inter!ittent5 ontinuous


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') 'ontinuous5 pu"satin%

D) 9u"satin%5 ontinuous

*


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transferred for,ard (s) bi"%e ,e"" n ,ithout any prob"e! n u Foin hi! "ater u find that

bi"%e pu!p is not ta3in% sution fr f(p) n aft bi"%e ,e"" n then u hae he3ed eerythin% is

nor!a". What is the ause#

A) 2th en%ineer !ade a !ista3e by 1st transferrin% the f,d (s) bi"%e ,e""5 nor!a" se/uene of

operation for en%ine roo! !ahineries shou"d not b disturbed.

&) 7,d (s) &i"%e ,e"" sution a"e is "ea3in%

') &i"%e pu!p sution fi"ter oer %as3et is "ea3in%.

D) 7,d (s) &i"%e ,e"" sution fi"ter oer %as3et is "ea3in%.8. +he %"and pa3in% of entrifu%a" pu!p shou"d hae

A) Not a""o, any brea3a%e under the sution pressure.

&) $hou"d on"y a""o, drop by drop ontinuous "ea3a%e under positie sution

pressure.

') $hou"d a""o, onsiderab"e "ea3a%e

;. Whih of the fo""o,in% a"e is "iab"e to open or "ose under pressure of f"uid5 if not "o3ed in

position#

1. Gate a"e

*. G"obe a"e

. 9"u% a"e

0. &utterf"y a"e. +he de, point is reahed ,hen the ,et bu"b te!perature is

E/ua" to the dry bu"b te!perature

01. As the a!ount of !oisture in the air inreases5 the differene bet,een the dry bu"b and ,et bu"b

te!peratures ,i""..

Decrease

$etion *-

1. E$D III refratory

a. %ire

b. )nsulationc. e#brane webs

*. 'han%e in o"u!e in "osed oo"in% syste! is ahieed by

a. %resh water expansion tank

. +urbohar%er !ost preferred

a. Cheap

b. Boost air pressurec. )ncrease efficienc!

". 1e"uce nox

0. irobia" de%radation

a. Corrosive

b. Stable e#ission

c. Caustic fire". All the above

2. 7untion of a de4superheater is to.

A. 9rotet superheater fro! oerheat

&. 'ontro" superheater stea! out"et te!perature


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'. Inrease the effiieny of the boi"er

D. Redue stea! te!perature for aui"iary uses after stea! superheater

6. Why shou"d o!bustion b"o,ers "eft runnin% for ,hi"e after firin% a boi"er#

a. o cool the furnace internal b. o re#ove the gases

c. o cool tubes

". None

8. DeHinifiation of brass an be preented by introdution of addities "i3e

a. Nickel

b. Cobaltc. arsenic

". ungsten

;. 9rinip"e of fire fi%htin% onboard is

a. ,atering of fire

b. Starving of fire

c. Cooling". S#othering of fire


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10. $in%"e sre, pu!p used as s"ud%e pu!p the orret tehnia" na!e.

a. Snake pu#p

b. Screw pu#p

c. 'rogressive cavit! pu#p". 9ear pu#p

12. Eessie "ubriator in o!pressor "eads toa. Deco#pression b. Detonation

c. Sticking in valves an"

". Carr! over an" "eposit of all particles in pipe line an" reservoir

16. 'orrosion ours in oo"in% fresh ,ater syste! of !arine diese" en%ine

a. Stress corrosion b. :ot corrosion

c. Bi#etallic corrosion

". Selective phase corrosion

18. 9urpose of eaporator in do!esti refri%eration syste!

a. o trans#it latent heat of evaporation

b. o absorb latent heat of fussionc. o absorb latent heat of evaporation

". o trans#it latent heat of fussion

1;. $udden "osin% and openin% of a"e in sea ,ater pipe"ine "eads to

a. Cavitations

b. ,ater ha##eringc. Stea# ha##ering

". here is no proble#

1


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**. $ea ,ater out"et te!perature of LO oo"er dereased ,hi"e !ain en%ine "oad and sea ,ater

in"et te!perature not han%ed this indiates

a. Cooler efficienc! has increase"

b. Cooler efficienc! has "ecrease"

c. Sea water outlet te#p nothing to "o with efficienc!". he flow of sea water re"uce"

*. &a""ast pu!p sution fi"ters durin% ba""ast in port purpose of %ettin% b"o3ed fre/uent"y youshou"d

a. 1e#ove the suction filter

b. Clean fre$uentl! as re$uire" an" also open an" check the sea chest filter

c. Stop using the pu#p an" keep fill in gravit!". Stop the ballast operation

*0. When stee" o!ponents e"etrop"ated ,ith hro!iu! are used in orrosie eniron!ent

a. Chro#e plating prevents corrosion

b. 'rotection to the steel will be preferentiall! corro"e"

c. inc plating is use" on top of chro#e plating for corrosion protection

". hickness of chro#e plating to increase

*2. $tee" is an a""oy of iron arbon and a""oyin% o!ponents ,hat is the arbon ontent#

a. Less than + = b. Less than -=

c. 9reater than -=

". An! = of carbon

*6. +ube in air o!pressors 5 se"f o!pensatin% for epansion (if !u"ti hoie in"ude oi" tube

a"so)

a. Straight line tube

b. U tubec. Coil tube

". %loating tube

*8. boi"er feed pu!ps is used in !odern ships

a. 1eciprocating pu#p b. :eleshaw pu#p

c. ultistage centrifugal pu#p

". Single stage centrifugal pu#p

*;. +he atuator of ba""ast a"e in dut 3ee" in port to arry deba""ast open best pratie

a. )nterchange fro# another valve.

b. anuall! operate"c. Leave the tank full an" ask for shore assistance.". 'ortable pu#p through #anhole.

*


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>. 'rude oi" or rude oi"Jba""ast ,ater of sa!e speifi %raity urrent in pu!p ,ith

sa!e dishar%e pressure

a. ore

b. Less

c. Sa#e". Does not "epen"

1. Refri%erant o!pressor ,i"" run ontinuous"ya. oo heav! cooling loa" b. Air in the s!ste#

c. )nsufficient refrigerant

". An! of the above

*. 9rotetion of Hin protetie oatin% is %ood at

a. ;< "egree Celsius b. @;

c. <

". ++;

. Whih anode I''9

a. inc

b. Siliconc. Lea" 2 silver

". 'latini6e" titaniu#

0. Effetie sution b"o,in% of ehaust %as3et

a. iniu# chance of suction fire

b. )ncrease efficientl!c. ini#u# heav! corrosion an" lea"ing tube failure

". All the above

2. :i%h h"oride of boi"er ,ater is aused by

a. Leaking tube of exhaust stea# con"enser

b. 4xcessive stea# leak resulting high

c. 'oor $ualit! of boiler #ake up water ". All the above

6. :ot ,or3 onboard

a. Switch alar#

b. eep fire extinguisher

c. Stan"b! person". All the above

8. Ehaust %as boi"er fire suitab"e !easures

a. %re$uent suit blowing b. )ncrease engine spee" to blow suite

c. Stop cooling water circulation to avoi" leakages

". None of the above

;. In R+ f"e en%ine ,hih of the fo""o,in% o!!ent of !ain en%ine !ade redundant


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a. %uel p7p

b. Starting air v7vc. Starting air "istributor

". Auxiliar! blower


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08. ou as a fourth en%ineer hae ta3en oer ,ath fro! third en%ineer. :e said OW$ is runnin% in >

pp!. &ut after ta3in% oer ,ath you obsered that fresh ,ater f"ushin% a"e is ra3 open. After

"osin% it5 sudden"y the oi" ontent has eeeded 12pp!. What ,i"" you do#

a. shut the *,S E infor# C4*.

b. shut the *,S but no nee" to infor# an!one.c. DonFt touch the appratus E infor# C4*.

". Gust check that there is no visible colour7oil traces in sea water so "onFt have to infor# an!one.

0;. With ref to entrifu%a" p@p harateristis ures ,hat ,i"" be the effet ,hen p@p is started

A. with suction close"

B. with "ischarge shut

0. 9urpose of obseration tan3

A. to check water level

B. check an! oil conta#inate

C. to check alkalinit!

21. +he oatin% on an e"etrode used for e"etri ar ,e"din%

A. creates a gas shiel" to prevent oxi"ation of the wel" #aterialB. helps the wel" for#ation b! shaping the #etal transfer

C. provi"es an electrical insulation for the user

D. All of the above

2*. Whih esse" is !ost"y used for arryin% N:@ L9G

A. Se#i pressuri6e"B. %ull! pressuri6e"

C. %ull! refrigerate"D. All the above

2. 9u!p5 ,hen oup"ed to onstant speed !otor 5 the dishar%e /uantity ,i"" not han%e ,ith

fo""o,in% pu!ps

A. heleshaw

B. steering gear swash plate t!peC. 9ear pu#p

D. None

20. E"etria" fire etin%uished by

A. Co-

B. DC'C. %*A

22. oer speed trip of %enerator

a. governor has to be check b. fuel oil s!ste#

26. 9urpose of preferentia" trip to preent

A. blackoutB. o avoi" overloa"

C. to start heav! #achiner!


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D. all

28. 7"oodin% in E@R5

A. pu#p out through *,S to overboar"

B. pu#p out through 44194NC3 Bilge pu#p

C. pu#p out through 9eneral Service pu#pD. all

2;. $e,a%e p"ant effiieny is %au%ed byA. suspen"e" soli" B. coli count

C. B*D

D. all

2. IG $yste! nu!ber of no return a"eA. +

B.-

C. /D. at least one if "eck seal is provi"e" otherwise two

61. Eaporator pressure testin% in (!u"tip"e hoie)

A. 'r. testing in shell

B. Leak test in vacuu# pu#p an" fittings

C. leak test in "istillate pu#pD. 8acuu# testing in shell

6*. 9LA+E type heat ehan%er is preferred for fo""o,in% adanta%eA. high heat transfer

B. eas! to cleanC. increase" ti#e between clean

D. all

6. 7or arry out !aFor ,or3 in tan3

A. %irst ai" in entrance

B. refresh#entC. entr!7exit ti#e of personnel

D. all

62. Inreasin% the rotationa" speed of a ar%o pu!p the pu!p f"o, rate ,i""-

A. )ncrease in "irect proportion to the increase in spee"

B. Decrease in "irect proportion to the increase in spee"C. %low rate "oesnt "epen" upon spee"

D. %low

66. &oi"er ,ater "ee" ontro"5 ontro""in% s,e"" and shrin3 of boi"er ,ith

A. fee" water level


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B. stea# "ru#

C. water "ru#D. none of the above

$etion -

1. +he pressure produed ,ithin the oi" ,ed%e of a rotatin% Fourna" is .

• the sa#e as the pressure in the lubricating s!ste#• less than the pressure in the lubricating s!ste#

• greater than the pressure in the lubricating s!ste#

• highest at the oil groove location

*. Whih of the !ain shaft se%!ents "isted be"o,5 that are onneted ,ith the !ain en%ine5 are

oup"ed to the tai" shaft f"an%e#

• hrust shaft

• SternHtube shaft

• )nter#e"iate shaft

• Crank shaft

. 9ipin% ross4setions oer > ! in dia!eter are siHed by the .

• insi"e "ia#eter

• wall thickness

• outsi"e "ia#eter

• threa"e" "ia#eter

0. +he a!bient heat in an en%ine roo! ,hih is identified by on"y a han%e in te!perature is

3no,n as

•

sensible heat• latent heat

• total heat

• resi"ual heat

2. +he usua" nu!ber of sin%"e4atin% pistons used in a ariab"e stro3e aia"4piston pu!p used for

steerin% %ears is .

• / or ;

• ; or I

• I or

• or ++

6. :eay soot au!u"ations in an aui"iary boi"er ou"d be aused by

• water in the fuel oil

• excessive c!cling

• high fuel oil pressure

• i#proper burner #aintenance

8. An aia" piston pu!p differs fro! a radia" piston pu!p5 as the pistons of an aia" piston pu!p

are positioned .

• ra"iall! fro# the shaft


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• parallel to each other an" to the shaft

• parallel to each other but at a right angle to the shaft

• at an angle to each other an" to the shaft

;. In referene to air onditionin%5 ,hen air attains the !ai!u! a!ount of !oisture it an ho"d at

a speifi te!perature5 it is said to be .

•

superheate"• saturate"

• con"ense"

• convecte"

. +he onia" stee" or o!position one insta""ed on a prope""er5 3no,n as a fair,ater one5

proides ,hih of the fo""o,in% benefits#

• 1e"uce turbulence

• :elp with lubrication

• 'rotect against electrol!tic corrosion

• All of the above

11. It is desirab"e for an aui"iary boi"er safety a"e to pop open and reseat /ui3"y to

• give warning that excessive boiler pressure has been reache"

• prevent wire "rawing of the "isc an" seat

• prevent valve poun"ing

• provi"e sufficient blow "own

1>. +he purpose of the pro%ra!!ed pur%e y"e on an auto!atia""y fired aui"iary boi"er is to

• cool the furnace to prevent preHignition

• re#ove explosive vapors fro# the furnace

• evaporate accu#ulate" unburne" fuel oil

• provi"e sufficient air in the furnace to allow ignition of the fuel

1*. $hort y"in% of a refri%eration o!pressor refers to .

• %re$uentl! cutting out on over loa".

• fre$uentl! starting an" stopping• running too fast

• running too slow

1. +he e!er%eny bi"%e sution a"e is typia""y used .

• to inject cleaning a""itives when the bilges are extre#el! "irt!

• when the #ain con"enser beco#es foule"2 in or"er to provi"e a""itional cooling water

circulation

• to connect the rose box to the in"epen"ent bilge suction


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• if the bilges beco#e floo"e" an" the! cannot be e#ptie" b! an! other #eans

10. +he by4produts of oidation5 as a resu"t of ,ater onta!ination of hydrau"i oi"5 are %enera""y

JJJJJJJJJJJJ.

• re#ove" b! cellulose t!pe filters

• gu#s2 varnishes2 an" aci"s

•

alwa!s neutrali6e" b! oil a""itives• har#less an" have no effect on s!ste# co#ponents

12. ,hich of the following "escribes the purpose of a striker or "oubler plate

• 'rovi"es a surface for the application of force2 or the installation of #achiner!.

• 'rovi"es lan"ing surface for the soun"ing bob of a tank soun"ing tape.

• Absorbs #achiner! vibration.

• 'revents valve ste# over travel.

16. ,hich of the following state#ents represents the proper relative "irection of flow through a globevalve

• Direction of flow through the valve is uni#portant.

• Direction of flow through the valve "epen"s upon the t!pe of seat "esign use" in the valve.

• Direction of flow shoul" be fro# below the seat.

• Direction of flow shoul" be fro# above the seat.

18. A portion of the ar%o of an LNG arrier boi"s off durin% eah oya%e. :o, the ar%o boi"s off is

nor!a""y hand"ed#

• Co#presse"2 con"ense"2 an" returne" to the cargo tanks.

• 8ente" to the at#osphere.

• Burne" in the boilers.

• ixe" with nitrogen an" recirculate" through the pri#ar! barrier.• Burnt off in a controlle" #anner through a chi#ne! s#oke stack fro# within the funnel.

1;. In Cesse" onstrution5 bea! bra3ets are trian%u"ar p"ates Foinin% the de3 bea! to a

• bulkhea"

• fra#e

• stanchion

• "eck longitu"inal

1. A one ton air onditionin% syste! has ,hih of the "isted operatin% harateristis#

• )t forces approxi#atel! +


17/38

*1. Whih of the !ateria"s "isted is used as the dyna!i sea" !ateria" on !ehania" sea"s insta""ed

on !ost entrifu%a" pu!ps used in ,ater serie#

• Copper.

• Copper an" carbon.

• Carbon.

•

Bron6e.

**. When usin% a handhe"d ha3sa,5 you shou"d app"y pressure on"y on the for,ard stro3e

.

• onl! when cutting thin wall tubing

• onl! when cutting carbon steel

• onl! when cutting con"uit

• at all ti#es

*. An i!portant onsideration in se"etin% a "ubriatin% oi" for use in a refri%eration o!pressor is

for the oi" to .

• have a high viscosit! in"ex• #ix rea"il! with refrigerant

• have a high free6ing point

• have a low pour point

*0. If the interoo"er re"ief a"e "ifts ,hi"e an air o!pressor is operatin% under "oad5 you shou"d

he3 for

• a "efective pressure switch or pilot valve

• a leak in the intercooler piping

• leakage through the low pressure unloa"er control "iaphrag#

• leaking high pressure "ischarge valves

*2. Latent heat an be defined as the heat ,hih !ust be added to a substane in order to han%e it

fro! a

• soli" to li$ui"

• li$ui" to vapor

• soli" to vapor

• all of the above

*6. +he desi%nation shedu"e ;> etra stron% refers to .

•

weight of steel plate• tensile strength of bolts

• piping wall thickness

• tube bursting strength

*8. +appin% threads into a b"ind ho"e shou"d be finished by usin% a

• short tap

• taper tap

• plug tap


18/38

• botto#ing tap

*;. Disti""ed ,ater fro! an eaporator !ay be dishar%ed into a potab"e ,ater tan3

• through a "etachable hose connection

• after passing through an activate" charcoal filter

• after che#ical anal!sis shows it is fit for consu#ption

•

through a solenoi" operate" threeHwa! valve

*


19/38

2. +he heat re/uired to han%e a substane fro! a so"id to a "i/uid ,hi"e at its freeHin% te!perature5

is 3no,n as the "atent heat of .

• fusion

• vapori6ation

• con"ensation

•

subli#ation

6. Whih of the fo""o,in% prob"e!s ourrin% in a hydrau"i syste! an be aused by the use of an

oi" hain% a isosity "o,er than speified#

• Seal "eterioration

• %ast response an" hunting

• )ncrease" power consu#ption

• *il fil# break"own

8. +he on"y !eans of re!oin% the "atent heat of ondensation fro! a refri%erant in the nor!a"

refri%eration y"e is by .

• passing it through the expansion valve• con"ensing refrigerant in the s!ste# con"enser

• passing the gaseous refrigerant through the heat interchanger on the suction si"e of the

co#pressor

• #aintaining a high pressure on the s!ste#Fs receiver

;. Whih of the fo""o,in% state!ents represents the !ain differene bet,een a stuffin% bo %"and

and a !ehania" sea" for sea"in% the shaft of a entrifu%a" pu!p#

• 'acke" stuffing box glan"s are subject to wear2 but #echanical seals are not.

• 'acke" stuffing box glan"s #ust be coole" b! the li$ui" being pu#pe"2 but #echanical seals "o

not re$uire cooling.• )f packing fails2 the pu#p can be kept running te#poraril! b! tightening the glan"2 but if a

#echanical seal fails it #ust be totall! renewe" to stop the leakage.

• he sealing surface of a #echanical seal is parallel to the shaft2 but the sealing surface of a

packe" glan" is perpen"icular to the shaft.


20/38

01. +he har%in% of a refri%eratin% syste! shou"d be arried out by addin% .

• refrigerant vapor to the receiver onl!

• li$ui" refrigerant to the low si"e onl!

• li$ui" refrigerant to the high si"e onl!

• li$ui" refrigerant to the high or low si"e

0*. A "ea3in% sution a"e in the seond sta%e of a t,o sta%e5 hi%h pressure5 air o!pressor an ause

eessie"y hi%h .

• secon" stage "ischarge pressure

• first stage "ischarge pressure

• pressure in the after cooler

• co#pressor final "ischarge te#perature

0. 7abri type pa3in%5 suh as f"a or he!p5 is best suited for .

• low te#perature use

• high te#perature use

• use where align#ent is critical

• packing valves with ba"l! groove" ste#s

00. Whih of the "isted prob"e!s is ourrin% if a oi" type hi%h pressure eaporator onstant"y

re/uires an inrease in the oi" stea! pressure in order to !aintain apaity#

• he brine "ensit! is i#proper.

• :eat transfer surfaces are being la!ere" with scale.

• )#pure "istillate is being pro"uce".

• Shell vapor pressure is constantl! "ecreasing.

02. +he ter!s rou%h5 oarse5 bastard5 seond ut5 s!ooth5 and dead s!ooth refer to the .• shape of the file

• coarseness of the file teeth

• si6e of the file

• cuts of the file

06. A pu!p is defined as a deie that .

• pro"uces pressure

• i#parts energ! to a flui" to #ove it fro# level KAK to level KBK

• creates a vacuu# to #ove a li$ui" in all installations

• is to "evelop a pressure "ifferential

08. Restritions ourrin% in the s!a"" orifies of pneu!ati ontro" syste! o!ponents an be

aused by

• #oisture in the co#presse" air suppl!

• excessive "r!ness in the co#presse" air suppl!

• pressure surging in the co#presse" air receiver

• insufficient lubrication of the s!ste# co#ponents


21/38

0;. +he prinipa" purpose of suboo"in% "i/uid refri%erant prior to its enterin% the epansion a"e is

to

• increase the refrigerating effect b! "ecreasing the a#ount of flash gas

• allow the refrigerant to enter the throttling "evice in a saturate" con"ition

• increase the refrigerating effect b! increasing the a#ount of flash gas

• #ini#i6e the te#perature "rop of the li$ui" as it passes through the solenoi" valve to the outlet

si"e

0. A first sta%e un"oader insta""ed in a "o, pressure air o!pressor is unab"e to o!p"ete"y retrat.

+his ,i"" resu"t in

• overheating of the "ischarge valve• loss of #oisture in the air charge in the receiver

• fre$uent lifting of the intercooler relief valve

• an abnor#all! low intercooler pressure

21. +he heat re!oed fro! the refri%erant in the ondenser of a refri%eration p"ant is the

• latent heat of expansion

• sensible heat of con"ensation

• heat of co#pression

• all of the above

2*. Eessie "ea3a%e and pre!ature fai"ure of a"e pa3in% is a resu"t of .

• opening a valve too $uickl!

• ja##ing a valve in the close" position

• low pressure flui" flow through the pipeline

• a score" valve ste#

2. +he a!ount of fue" oi" ato!iHed by a return f"o, oi" burner is diret"y ontro""ed by the

• hea"er suppl! valve

•

burner root valve• oil #icro#eter valve

• fuel oil back pressure

20. 7uses are rated in

• voltage

• a#perage

• interrupting capacit!

• all the above


22/38

6. When there is eessie in%ress of ,ater in the en%ine roo! onboard ausin% dan%erous "ee"s of

bi"%e ,ater5

A. Start oil! water separator an" pu#p overboar"

B. Start 9eneral service pu#ps an" pu#p bilges overboar"C. Use bilge injection valve an" pu#p bilges overboar"

D. None of the above

8. If a radia" piston hydrau"i pu!p fai"s to de"ier rated f"uid o"u!e5 the ause an be

.

• conta#inate" flui"

• pitte" thrust rings

• worn pintle bearings

• obstructe" suctions passage

;. A f"utuatin% and unsteady auu! in an eaporator !ay be aused by .

+. wet stea# entering the air ejector no66le

-. pinhole leaks in the evaporator tube nests/. rapi" scaling on the evaporator tube nests

0. high water levels in the last effect

. If the pointer fai"s to return to Hero ,hen a !e%%er is disonneted5 the.• pointer is stuck

• hair springs are burne" out

• #egger is out of calibration

• #egger is operating nor#all!

11. When rep"ain% ba"" bearin%s on an e"etri !otor shaft5 you shou"d .

&a( tap the outer race with a #allet

&b( appl! even pressure to the outer race&c( appl! even force to the inner race

&"( appl! pressure evenl! to both the inner an" outer races

6*. +he Hipper of an i!!ersion suit shou"d be "ubriated ,ith .

• paraffin

• oil

• graphite

• vegetable oil


23/38

6. An insu"ation resistane test is perfor!ed on a partiu"ar piee of e"etri e/uip!ent. In addition

to the resistane readin%5 ,hat infor!ation "isted be"o, shou"d be entered in the e"etria" "o%#

&a( he #axi#u# allowable operating te#perature of the #achine.

&a( he te#perature of the #achine at the ti#e the resistance rea"ing was taken.

&b( he nor#al te#perature rise of the #achine.&c( he co#plete na#e plate "ata fro# the resistance test instru#ent use" to obtain the rea"ing.

60. When re!oin% the ap fro! a soundin% tube on a OD5 the sound of air esapin% indiates.a. the tank is full b. the tank #a! be partiall! floo"e"

c. the tank level has "roppe"

". the tank is co#pletel! floo"e"

62. A so"id strea! of ,ater !i%ht be usefu" in fi%htin% a burnin% oi" fire on de3 ,hen it is used

.

a. to wash burning oil over the si"e

b. to provi"e cooling for the fire fighters

c. in conjunction with che#ical foa#

". to cool the #ain "eck

66. +he burner asse!b"y on an auto!atia""y fired aui"iary boi"er fitted ,ith ariab"e apaity5

pressure ato!iHin% burners5 !aintains stea! pressure by

&a( c!cling on an" off

&b( changing fuel oil return pressure

&c( changing the spee" of a rotar! cup(d) 8ar!ing air pressure supplie" to the no66le

68. Ga"ani ation ,hih of the fo""o,in% is fa"se.

A. onl! one #etal "oes not initiate corrosionB. wo #etal with electrol!te will not initiate corrosion

6;. In $tern tube5 aft of 7OREWARD $EAL is "ea3in% then

A. forwar" tank oil level increaseB. "rop in hea"er tank level

6


24/38

8*. 9rior to !aFor oerhau" of !ain en%ine onboard5 the en%ine roo! rane is tested by

A. *perating the crane through the nor#al rangeB. esting of the crane with two sa#ple abnor#al con"itions

C. )nspection of the crane hook an" other safet! arrange#ents

D. Stress testing of crane wire with peak loa"s

8. Water arryoer fro! boi"er onboard throu%h the stea! auses

A. 4rosion of the stea# plant #achiner!

B. Low water level insi"e the boiler C. Buil"Hup of "eposits on the stea# plant #achiner!D. None of the above

80. A diffuser is proided at the end of a !ehania" ato!iHer in boi"er onboard

A. o prevent blow back of the fla#e

B. o #ix the air an" fuel properl!

C. o prevent blow out of the fla#eD. o eject the excess fu#es fro# the ato#i6er

82. $hort y"in% of a frid%e o!pressor an our in ,hih of the fo""o,in% ases#

A. Air ingress into the s!ste#

B. A leaking solenoi" valveC. :igh cooling water te#perature going to the con"enser

D. 4xcessive refrigerant charge

86. $tea! stop a"e is eased of its seat durin% boi"er start up fro! o"d

A. o allow ther#al expansion of parts

B. o allow stea# flow "uring start up

C. o prevent water ha##er D. All of the above

88. Duty of standby person at the entrane of the en"osed o!part!ent durin% en"osed spae entry

is

A. o alert others in case of untowar" e#ergenc!

B. o provi"e first ai" to injure" personC. o assist for the work carrie" out in the enclose" co#part#ent

D. All of the above.

8;. Whih of the fo""o,in% state!ents about the desi%n of D4 type boi"ers5 is fa"se#

A. he heavier water in top "ru# flows back to the botto# "ru# through the "ownH co#ers outsi"e

the furnaceB. )nsi"e the furnace the water is heate" up in the risers

C. he upper "ru# is the stea#7water "ru# an" the lower one is the water "ru#.

D. he fee" water is pu#pe" into the lower "ru#

8. Whih of the fo""o,in% types of oatin%s used in tan3s of a he!ia" arrier proides a

o!prehensie protetion a%ainst !ost so"ents#

A. 4pox! coatings

B. 'ol!urethane coatings


25/38

C. inc silicate

D. 'henolic resins

;1. 9resene of ata"yti fines in fue" oi" is si%nifiant to en%ineers on board beause

A. Catal!tic fines ten" to i#pair proper operation of purifiers

B. Catal!tic fines lea" to abrasive wear in liners 2 piston rings an" fuel injection e$uip#entC. Catal!tic fines necessitate increase in injection te#perature

D. Catal!tic fines necessitate increase in storage te#perature

;*. A partia" openin% of ,hih of the fo""o,in% 3inds of a"es an "ead to ,ire 4dra,in% of its seat#A. 9lobe 8alveB. Butterfl! valve

C. 9ate 8alve

D. %ull bore angle valve

;. Whih of the fo""o,in% types of stea! traps uses the pressure ener%y of the stea! to "ose the

out"et #

A. her#ostatic trapB. her#o"!na#ic trap

C. echanical trap

D. 8acuu# trap

;0. $e/uentia" startin% of !ahineries after b"a3 out in en%ine roo! is neessaryA. o prevent overloa" of 9enerators

B. o $uickl! restore the faile" power suppl! in or"er

C. o prevent "a#age to #achiner! which has been switche" off D. All of the above

;2. $a"inity of disti""ed ,ater produed fro! fresh ,ater %enerator onboard depends on

A. A#ount of fee" set in fresh water pro"uctionB. A#ount of salt water leaking fro# con"enser if an!

C. e#perature of the sea water use"

D. 4fficienc! of brine ejector fro# the evaporator shell

;6. Whih of the fo""o,in% is the !ateria" used for !anufaturin% tube p"ates of a she"" and tube type

heat ehan%er#A. CuproHnickel

B. Alu#inu# BrassC. A"#iralt! Brass

D. 9un#etal

;8. :o, is the ,ater iru"ated bet,een ,ater and stea! dru!s in a ,ater tube D4 type boi"er#

A. B! the boiler fee" water pu#p

B. B! a circulating pu#p outsi"e the boiler

C. Due to "ifference in "ensities of water an" stea#D. None of the above

;;. +he seatin% !ateria" for perfet"y sea"in% type &a"" a"es is usua""y !ade up of

A. 1ubber

B. '%4 or N!lon

C. 1ubber reinforce" with steel wire

D. Stainless steel


26/38

;


27/38

• *pen the "rain connection to allow seawater to flow in an" #ake the "istance even.

@. he te#perature at which water vapor in the at#osphere begins to con"ense is calle" the

JJJJJJJJJJJJ.

• "ew point te#perature

• con"ensation te#perature

•

ps!cho#etric te#perature• absolute hu#i"it! te#perature

I. *ne function of the air receiver in a co#presse" air s!ste# is to JJJJJJJJJJJJJ.

• "r! the air "ischarge" fro# the intercooler

• #ini#i6e the s!ste#Fs line pulsations

• receive exhaust air fro# pneu#atic accessories

• re#ove all traces of oil fro# the air

M. ,hich of the following state#ents "escribes the purpose of the split inflatable seal installe" aft of the pri#ar! seal asse#bl! for the propeller shaft

• o serve as a seal when a""ing packing to the stuffing box.

• o allow repair or replace#ent of the pri#ar! seal ele#ents when the ship is waterborne.

• o eli#inate leakage via the propeller shaft when the shaft is not rotating.

• o provi"e a rea"! #eans for the entr! of cooling water.

. ,h! shoul" a person perfor#ing #aintenance on an air co#pressor wire an" tag the s!ste# valves

close"

• o prevent the unexpecte".

• o protect the e$uip#ent.

• o protect the operator perfor#ing the #aintenance.

• 4ach of the above is correct.

+


28/38

• %uel oil flow #eter

+/. )n an! air s!ste# a safet! "evice shoul" be place" between an! two points where air can be trappe" between an! two valves.

&a( ,hich can be close" #anuall!.

&b( Between a non return valve an" a screw "own valve.&c( Between a nonHreturn valve an" a UHben" of a pipe.

&"( Between an! valve an" a no66le.

+0. So#e of the following are preferre" refrigerants of the future&a( Carbon "ioxi"e

&b( 1efrigerant ++

&a( 1efrigerant ;


29/38

• All of the above.

-


30/38

• he packing is a"juste" for greater cooling or replace".

$E'+ION 2

1. A hi%h pressure differentia" in a !ain en%ine fue" oi" fi"ter onboard an be best redued by

A. Back flushing the filter #anuall!

B. Stopping the #ain engine to change the filter ele#ent

C. Changing over to stan" b! filter if provi"e"

D. None of the Above

*. Inert Gas $yste! shou"d be apab"e of de"ierin% Inert Gas at the rate of at

"east

A. ++


31/38

B. rake

C. pitchD. threa" gauge

8. +he ash ontent of a fue" oi" is si%nifiant to the operatin% en%ineer beause it

A. is an in"ication of the a#ount of nonco#bustible #aterial present in the oilB. in"icates the $uantit! of energ! release" b! burning a unit a#ount of the fuel

C. is useful for "eter#ining proper ato#i6ation te#peratures

D. reflects the overall ther#al efficienc! of the fuel oil service s!ste#;. Air onditionin% syste! air hand"in% units !ust hae their air fi"ters "eaned at re%u"ar intera"s

in order to preent

A. 9rowth of #icroorganis#s an" bacteria har#ful to hu#an beings

B. 1estriction to air flow an" hence re"uce" efficienc! of the plantC. 9rowth of #ites an" other allergens

D. All of the above

. &efore any ,or3 is to be arried out on a burner in an auto!atia""y fired aui"iary boi"er5 you

shou"d a",ays

A. block all control s!ste# rela!s close"B. allow the boiler to cool co#pletel!

C. close all #anuall! operate" fuel valves

D. lock all safet! interlock switches close"

11. $oot b"o,in% of boi"ers onboard an be arried durin%

A. 'ort operations

B. SailingC. During in"ications of a uptake fire

D. )nerting operations in oil tankers1*. Whih of the fo""o,in% o!ponents in an Inert Gas syste! ensures that apours are ented ,e""

"ear of the ,or3in% de3# i) :i%h e"oity ents ii) ast risers

A. *nl! i(

B. *nl! ii(

C. Both i( an" ii(D. Neither )( nor ii(

1. Whih of the fo""o,in% is !ost suited to at as a de3 air o!pressor#

A. Lobe t!peB. 1eciprocating t!pe

C. Screw t!pe

D. None of the above10. $afety of Gas y"inders used for uttin% and ,e"din% is ensured

A. B! fitting of flash back arrestor

B. B! using color co"es for gas pipe connections

C. B! using trolle!s when transferring c!lin"ersD. All of the above.

12. 9u!ps i!part ener%y to a f"uid but the ener%y re/uired to brin% the f"uid to the pu!p !ay be

proided by

A. 9ravitational :ea"

B. At#ospheric pressure


32/38

C. Another pu#p

D. An! one or a co#bination of above

16. InFetin% ,ater into the o!bustion ha!ber of !arine en%ines is a pri!ary !ethod of redution

of ,hih of the fo""o,in% air po""utants#

A. S*xB. 'articulate #atters

C. Unburnt :!"rocarbons

D. N*x18. In ase of fai"ure of ontro" air supp"y 5so!e a"es ontinue "o3ed in the position they ,ere at

the ti!e of fai"ure . +hey are said to be4

A. %ailHsafe

B. %ail HproofC. %ailHset

D. %ail Hblocke"

1;. O"d !ahinery spae "o% boo3 are 3ept in safe ustody

A. o refer an" clarif! in case of an! $uer!

B. %or purpose of internal an" external au"its

C. o safeguar" the chief engineers co#petence

D. None of the Above1


33/38

D. all of the above

*2. +o !ai!iHe the effetieness of soot b"o,in% onboard

A. 4nsure Boiler is firing at high loa"

B. 4nsure Boiler is firing at low loa"

C. 4nsure co#bustion para#eters #aintaine" nor#alD. None of the above

*6. Iso"ation of fi"ters onboard prior to "eanin% is done by

A. Closing of inlet an" out let valvesB. Switching of the relevant pu#p an" s!ste# valvesC. *pening of "rains an" vent valves

D. All of the above

*8. Whih of the fo""o,in% type of pu!ps is !ost suited to at as Waste Oi" $"ud%e 9u!p#

A. Centrifugal pu#p

B. Screw pu#p

C. 9ear 'u#pD. 'rogressive cavit! pu#p

*;. In the A"ap prinip"e of entrifu%a" separation

A. ,ater is onl! "ischarge" when "eslu"geing is activate" b! the control unit

B. he valve at the water outlet is opene" perio"icall! base" on ti#er actionC. he valve at the water outlet is opene" on the basis of signal of water content to the control unit

fro# the water trans"ucer at the clean oil outlet

D. he centrifuge works as a clarifier with no water outlet

*. +o preent e"etri sho3 durin% e"etri ar ,e"din%

A. ,ear "r! clothes

B. ,ear insulate" shoesC. eep first ai" e$uip#ent rea"!


1. A reord of the types and stren%ths of stee"s used on a OD !ust be in"uded in the

A. 9eneral plans

B. Buil"erFs "ocu#entationC. Certificate of )nspection

D. Construction portfolio

*. Water ha!!er in a stea! heatin% syste! an be aused by

A. filling the auxiliar! boiler with col" water

B. stea# a"#itte" to a col" pipe

C. filling the auxiliar! boiler with hot waterD. "raining a soot blower line before cracking the stea# suppl! valve

. What is a funtion of the ,earin% rin%s used in !ost entrifu%a" pu!ps#

A. Absorb erosion of high velocit! "ischarge strea#

B. Seal pu#p shaft against entr! of airC. )solate the "ischarge si"e fro# the suction si"e

D. Da#pen the turbulent "ischarge flow

0. Whih o!bination of the !ain shaft se%!ents "isted be"o,5 that are "oated furthest fro! the

!ain en%ine5 are onneted by the inboard stern tube shaft oup"in%#

A. Line shaft an" thrust shaft


34/38

B. Line shaft an" sternHtube shaft

C. hrust shaft an" sternHtube shaftD. SternHtube shaft an" tail shaft

2. An aui"iary en%ine turbo4har%er !a3es stran%e noises ,hen the "oad han%es. +he en%ine

para!eters ho,eer are abso"ute"y fine. An eterna" ea!ination of turbohar%er para!eters as

stated in the !anua" a"so reea"s nothin%. Wou"d you

&a( Continue to run the engine an" wait for so#e ti#e

&b( Stop the engine for a while an" #ake so#e checks&c( 1e"uce the loa" of the engine&"( 1un it on stea"! loa" to #ake so#e checks.

6. Whih of the fo""o,in% an be done to redue the o"d orrosion of ain En%ine y"inder "iners

usin% hi%h su"phur fue" oi" -4

A. )ncreasing c!lin"er oil fee" rate

B. Using high BN c!lin"er oil

C. )ncreasing scavenge air te#peratureD. Decreasing c!lin"er oil fee" rate

8. Whih of the fo""o,in% an "ead to pre!ature fai"ure of ro""er bearin%s#

A. isalign#ent

B. Conta#inationC. Shrinkage

D. *ver greasing

;. W:I': 9RO'E$$ I$ NO+ DONE ON ILD $+EEL#

A. :ot plating

B. 4lectrol!sis

C. 4xplosion bon"ingD. etal spra!ing


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D. all of the above

00. Whih of the %roup of !ethod are used for pri!in% of entrifu%a" pu!ps onboard ships#

A. 9ravit! tank2 attache" vacuu# pu#p

B. Attache" 8acuu# pu#p2 filling pu#p casing using a fresh water hose

C. Central pri#ing s!ste#2 attache" vacuu# pu#p2 sea water pri#ingD. None of the above

02. +he ran3 ,eb def"etion readin%s of a diese" en%ine ,ou"d be erroneous in ,hih of the

fo""o,in% onditions#A. ,hen the "raught of the vessel has change" while rea"ings were being takenB. ,hen cargo loa"ing an" "ischarging has been too rapi"

C. ,hen the crankcase te#perature has change" substantiall! "uring the process of taking the

rea"ings.D. None of the above

06. Whih of the fo""o,in% ,i"" be re/uired to be done in order to redue su"phur orrosion of ain

En%ine 'o!ponents#

A. )ncreasing the ato#i6ation pressure of fuel injectors

B. %itting exhaust valves with valve rotators

C. 1unning engine at or near nor#al sea loa"

D. Decreasing the %.*. purifier fee" rate2 running two purifier in series one acting as purifier an"other as clarifier

08. Cauu! pri!in% pu!ps ,hih ,or3 on the prinip"e of fied ane pu!ps re/uire

for "earane bet,een ane tips and asin%.

A. Lube oil2 lubricating

B. Lube oil2 sealing

C. ,ater2 sealingD. 9lan" packing2 sealing

0;. +he o!!on ter! used for fai"ure of !eta" and a""oys in a orrosie eniron!ent 5 ,hen subFet

to hi%h stresses is 3no,n as -

A. %atigue failure

B. Corrosion fatigueC. Stress corrosion cracking

D. %retting Corrosion

0


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2*. 'ause ,hy asade tan3 ,ater te!perature is hi%h# OR What ou"d be the reason ,hy the feed

pu!p an hard"y pu!p in ,ater to the aui"iary boi"er ausin% the asade tan3 ,ater "ee" to rise ?

te!perature too hi%h#

A. :igh a#bient te#perature

B. Clogge" con"enser water tubesC. %ilter "irt!

D. Low casca"e water level

2. Where is the "oation of the ba3fire a"e#A. Boiler furnaceB. Scavenging area

C. 9as c!lin"er

20. Durin% departure fro! a * ,ee3s anhora%e5 the reason ,hy the ,ind"ass annot "ift the anhor

up is

A. Low lube oil tank level

B. ,in"lass "efective b! pass valveC. Anchor "rag sunken object

D. oo col" h!"raulic oil

22. A ba""ast pu!p is bein% used to deba""ast a fore pea3 tan3 ,hih is fu"". It is seen that sution

pressure is positie and dishar%e pressure is ery "o, o!pared to rated dishar%e head. It indiatesthat-

A. 'u#p is not operating satisfactoril! an" pu#ping capacit! is too low

B. 'u#p is not operating satisfactoril! an" pu#ping capacit! is higher than rate"2 throttling of"ischarge valve is re$uire"

C. 'u#ping capacit! is not affecte" b! suction an" "ischarge pressures

D. 'u#p is operating nor#all!

26. What attah!ent an you find in air reseroir#) Safet!71elief valve)) %usible plug

))) Bursting "isc

28. 'aitation erosion ours due to

A. Che#ical action

B. 'h!sical action

C. Che#ical *1 ph!sical actionD. Co#bination of che#ical or ph!sical action

2;. +he "o,est te!perature at ,hih a "i/uid as "isted on the $D$5 %ies off enou%h apor to i%nite

in the presene of an i%nition soure is a""ed its .

A. %lash pointB. %ire point

C. )gnition point

D. None

2


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B. Air #ore

C. Setting "iff close

61. When !ain en%ine is runnin% in e!er%eny ondition ,hih of the a"ar! an=t be bypassed.

A. L* low pressure

B. GC, high te#pC. 'iston cooling water high te#p

D. All

22. Why ,e do not prefer to run air t,o o!pressor to%ether beauseA. All below pointsB. oo #uch #aintenance

C. oo #uch power consu#ption

D. Loss of lube oil

$E'+ION 6

ANAR *>1

1. +he !aster or person in har%e of a OD is re/uired to "o%

A. the "ate an" hour of each fire "rill

B. the na#es of all persons on boar"

C. onl! casualties which occur while un"erwa!

D. ever! event occurring on boar"*. A si!u"taneous rise in stern tube for,ard sea" tan3 and drop in "ee" of header tan3 indiates

A. Aft seal ring of forwar" seal asse#bl! "a#age" or sealing "isturbe" b! foreign object

B. %orwar" seal ring of forwar" seal asse#bl! "a#age" or sealing "isturbe" b! foreign object.C. 4ither of the above


. &earin% da!a%e in a diese" en%ine onboard is indiated by

A. ,hite #etal in the crankcase

B. ,hite #etal in the lube oil filter

C. nocking soun" fro# the engine crankcaseD. An! of the above

0. In a D4 type ,ater tube boi"er ,ith a seondary stea! dru! and super4 heater5 the stea! is heatedaboe the boi"in% point of ,ater in the

A. 'ri#ar! stea# "ru#B. 1isers

C. SuperH heater

D. Secon"ar! stea# "ru#

2. Whih of the fo""o,in% state!ents is fa"se about orrosion due to %a"ani ation#

A. etals close to the ano"ic en" of galvanic series corro"e in preference to the ones close to the

catho"ic en".B. ,hen an! single #etal exists in a s!ste#2 it cannot corro"e "ue to galvanic action.

C. inc is ano"ic to steel an" is often use" as a protective coating

D. Corrosion rate is affecte" b! te#perature6. Whih of the fo""o,in% state!ents is 7AL$E re%ardin% %as arriers#

A. Shipboar" generation of inert gas for cargo tanks is a re$uire#ent .

B. Shipboar" generation of inert gas for inter tank barriers an" hol"s is a re$uire#ent .

C. 9as carriers "o not use shipFs #ain boilers for generation of inert gas.D. 9aseous nitrogen is pro"uce" on boar" in #an! gas carriers

8. Whih of the fo""o,in% fators ,i"" hae the %reatest effet on the heatin% "oad ,ithin a

onditioned spae#

A. Solar gain

B. )nfiltration an" ventilation air


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C. *ccupants insi"e the space

D. 4ntertain#ent e$uip#ent within the space

;. Durin% !aFor repair ,or3 in en"osed spae onboard

A. eep log of entr! an" exit ti#e of personnel

B. eep a"e$uate first ai" e$uip#ent at the entranceC. 'rovi"e refresh#ents

D. None of the Above

General Main

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