2004 Academic Challenge

ENGINEERING GRAPHICS TEST - STATE FINALS

Engineering Graphics Test Production Team Ryan Brown, Illinois State University – Author/Team Coordinator

Kevin Devine, Illinois State University – Author Jacob Borgerson, University of Illinois at Urbana – Champaign – Reviewer

Don Wayman, WYSE – Coordinator of Test Production

GENERAL DIRECTIONS Please read the following instructions carefully. This is a timed test; any instructions from the test supervisor should be followed promptly. The test supervisor will give instructions for filling in any necessary information on the answer sheet. Be sure you understand and correctly follow these instructions. You are to indicate your answer to each question by marking an oval that corresponds to the correct answer for that question. Only one oval should be marked to answer each question. Multiple ovals will automatically be graded as an incorrect answer. Be sure ovals are marked as . Not as , , , etc. Test Question - 1. Which planet was closer to Earth in 2003 than it had been for 60,000 years? a. Jupiter b. Mercury c. Neptune d. Mars e. Venus Answer Sheet-- 1. If you wish to change an answer, erase your first mark completely before marking your new choice. You are advised to use your time effectively and to work as rapidly as you can without losing accuracy. Do not waste your time on questions that are too difficult for you. Go on to the other questions and come back to the difficult ones later if you can.

*** TIME: 40 MINUTES ***

DO NOT OPEN TEST BOOKLET UNTIL YOU ARE TOLD TO DO SO!

© 2004 Worldwide Youth in Science and Engineering

“WYSE”, “Worldwide Youth in Science and Engineering” and the “WYSE Design” are service marks of and this work is Copyright © 2004 Board of Trustees of the University of Illinois at Urbana - Champaign. All rights reserved.

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2004 State Finals

WYSE – “Academic Challenge

Engineering Graphics Test (State Finals) – 2004 1. In general, what effect, if any, will

reducing the amount of tolerance have on the production of a part?

A. No effect B. A decrease in the production

costs C. An increase in the production

costs D. A decrease in the strength of the

product E. Smaller cutting tools will need to

be used 2. A 1” diameter cylinder with a vertical

axis intersects the top half of a 1.5” diameter cylinder with a horizontal axis. If the side view features the circular view of the larger cylinder, which view(s) will show the intersection of the cylinders as a spline shape?

A. Front and top B. Front and side C. Side and top D. Front only E. Top only

3. A cylindrical sheet metal duct is sliced

(truncated) at a 45° angle. An auxiliary view used to design a sheet metal lid to cap the angled opening would reveal:

A. the elliptical true size and shape of the opening

B. an edge view of the slice C. one of two measurements

needed to calculate the shape D. the true angle of the cut E. a hyperbolic shape that could be

mirrored to create the lid shape

4. Identify the type of pictorial drawing illustrated above:

A. Oblique B. Isometric C. Trimetric D. One point perspective E. Two point perspective

5. In some organizations or publications,

the acronym CADD is used instead of CAD. The “extra” D most likely stands for:

A. Department B. Division C. Development D. Drawing E. Design

6. Following proper dimensioning practice,

all of the following could be found on a drawing with respect to a pattern of holes about a bolt circle EXCEPT:

A. An “equally spaced” note B. A bolt circle diameter dimension C. A basic size dimension attached

to each of the holes, even though they are all the same size.

D. A circular center line through the hole pattern.

E. An angular dimension for holes that are not on a vertical or horizontal center line.

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7. If a triangle has two sides equal, yet

longer than the third side, we could identify it as a(n) __________ triangle.

A. obtuse B. scalene C. equilateral D. isoceles E. right

8. The type of drawing illustrated above is a foldout of a truncated prism, normally referred to as a(n) ____________.

A. prismation B. development C. auxiliary D. displacement E. schematic

9. In the diagram above, what diameter represents the small end of this cone?

A. 2 B. 2.5 C. 3 D. 3.5 E. 4

10. To plot a CAD drawing of a machine

part at ½ scale, CAD experts would usually agree that one should:

A. Create the geometry full scale, and use CAD settings or commands to plot the full scale object at ½ scale on the paper

B. Create the geometry at full scale, use a SCALE command to reduce the geometry to ½ scale, then plot

C. Mathematically reduce the measurements of the object to create the geometry at ½ scale, then plot.

D. Create and plot the drawing at full scale, then use a photocopy machine to reduce the plot 50%

E. Create the geometry at ½ scale, then plot at ½ scale

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11. Given a front and top view of an octagon

based right pyramid, 3” across the flats, and 2” tall, how many lines will be required to create the two views?

A. 13 B. 15 C. 17 D. 19 E. 23

12. At minimum, what engineering standard

paper size would be required for a 3-view (front, top, side) drawing of an object that is 5” tall, 10” wide, and 3” deep? NOTE: Allow 1/2” for borderline, 1” space between views and the border, and 1” between views.

A. A B. B C. C D. D E. E

13. Commonly used to prevent relative

movement between shafts and wheels:

A. Countersink B. Counterbore C. Tap D. Key E. Thrust washer

14. The term for tightest fit between two mating parts, based solely on the size dimensions:

A. Nominal fit B. Least material condition C. Maximum material condition D. Virtual condition E. Allowance

15. The item above is called a:

A. Datum Identification Symbol B. Feature Control Frame C. Tolerance Block D. Modifier Panel E. Position Control Bar

16. In the previous diagram, the encircled M

is called a:

A. Controller B. Datum C. Modifier D. Conditioner E. Qualifier

17. In the previous diagram, the letter A is a

reference to a(n):

A. Opening B. Angle C. Thread D. Vertex E. Datum

18. Six holes located around a bolt hole

circle can best be created using a CAD function commonly called:

A. Array B. Repeat C. Bolt D. Center E. Rotate

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19. Which of the following can be determined by looking at the sectional view above?

A. The hole is a counterbore B. The part is made of brass C. The part is cylindrical D. The hole is a countersink E. The design is comprised of 2

parts 20. Two circles of different radii, one inside

the other, without a common center point are said to be:

A. Circumscribed B. Radial C. Eccentric D. Elemental E. Concentric

21. The ASME symbol for datum

identification looks like:

22. According to most recent standards,

how should a ½” diameter hole be called out?

A. 1/2 DRILL B. R.25 C. 1/4 RADIUS D. ∅.500 E. 0.500 REAM

23. A descriptive geometry problem that

solves for the true distance between two oblique parallel lines would be guaranteed a proper solution in:

A. A front view B. A primary auxiliary view C. A secondary auxiliary view D. A view that shows both lines as

points E. A view that shows both lines true

length 24. Which of the following distances would

be the longest?

A. 56 mm B. 2 3/16” C. 2.22” D. .56 cm E. 2 15/64”

25. A 3” diameter cylinder is being

machined to fit into a square tube with an interior dimension of 2.75”. A three view drawing (front, top, & side) of this altered cylinder will contain how many arcs?

A. Four B. Eight C. Twelve D. Sixteen E. Zero

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26. If the top view of a 3” cube features the

circular shape of a 1” diameter hole with a 2” diameter countersink, and the front view is a full section, how many visible line segments are used to comprise the front view?

A. 6 B. 7 C. 8 D. 9 E. 10

27. An auxiliary view that shows only the part of the object that is inclined to the normal viewing directions would be called a(n) ___________ auxiliary.

A. oriental B. partial C. secondary D. sectional E. half

28. The theoretical line of contact upon which spur gear calculations are based:

A. Pressure angle B. Addendum C. Root diameter D. Pitch circle E. Major diameter

29. Which of the following is a type of

standardized tolerance fit for mating parts?

A. Force and Shrink (FN) B. Heat and Slide (HS) C. Oil and Bearing (OB) D. Through and Close (TL) E. Positional and Near (PN)

30. Identify the piece of equipment pictured

above:

A. Ruling Pen B. Scriber C. Dividers D. Beam Compass E. Bow Compass

31. Any triangle inscribed within a semicircle

is a(n) _________ triangle.

A. obtuse B. scalene C. equilateral D. isosceles E. right

32. An isometric drawing of a rectangular

prism with a square or rectangular hole through from top to bottom could have as few as _____ line segments, but as many as _____.

A. 12;14 B. 13;15 C. 13;17 D. 14;16 E. 14;18

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33. In order to avoid confusion between

square and hexagonal nuts and bolts, and to show actual clearances:

A. True projection must never be violated

B. A general note must be used C. Geometric dimensioning and

tolerancing is preferred D. Bolt heads and nuts should be

drawn “across corners” regardless of projection

E. Threads should be drawn using the detailed representation

34. In a scenario where successive

dimensions extend from one feature to another, rather than all originating at a datum, tolerances accumulate. What is this dimensioning method called?

A. Baseline dimensioning B. Aligned dimensioning C. Chain dimensioning D. Eccentric dimensioning E. Ordinate dimensioning

35. Given a front and top view of an

unfinished 2” cube with a 1” diameter hole through top to bottom, with all part edges rounded 1/8”, how many 90° arcs will there be in the two views?

A. 6 B. 8 C. 10 D. 12 E. 14

36. The ASME standard symbol for depth is:

37. Used only for informational purposes, it

does not receive the standard print tolerance and should not be used for production or inspection:

A. Basic dimension B. Nominal dimension C. Symmetrical dimension D. Unilateral dimension E. Reference dimension

38. Which of the following statements

regarding welding drawings is false?

A. It is preferred practice to specify all welds using a general note such as “TO BE WELDED THROUGHTOUT”

B. The welds themselves are not drawn

C. Welding symbols are used to clearly and completely indicate the desired weld

D. The joints are shown as they would appear before welding

E. Dimensions are given to show the sizes of the individual pieces

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