2009 Academic Challenge ENGINEERING GRAPHICS TEST – REGIONAL This Test Consists of 50 Questions Engineering Graphics Test Production Team Ryan Brown, Illinois State University – Author/Team Leader Kevin Devine, Illinois State University – Author Jacob Borgerson, PhD, University of Illinois at Urbana-Champaign – Reviewer Mary Weaver, 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. Most Academic Challenge sites will ask you 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 incorrect answers. 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 seem too difficult for you. Go on to the other questions, and then come back to the difficult ones later if time remains. *** Time: 40 Minutes *** DO NOT OPEN TEST BOOKLET UNTIL YOU ARE TOLD TO DO SO! ©2009 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 the Copyright ©2009 of the Board of Trustees of the University of Illinois at Urbana – Champaign. All rights reserved WYSE – Academic Challenge Engineering Graphics Test (Regional) - 2009 1. What is the name of the line that is used in multiview drawings to represent the axis of a hole? 4. If all the points of one arc are equidistant from another arc, they will be: A. Axis line A. chordal B. Center line B. concentric C. Dashed line C. pararchial D. Phantom line D. tangent E. Roundness line E. eccentric 2. Identify the distance indicated in the true size illustration below : 5. The principles of orthographic projection are usually explained with three projection planes, frontal, horizontal, and profile. IF a surface of an object is perpendicular to the profile plane, how MIGHT it be oriented to the horizontal plane? A. Perpendicular B. Parallel A. 1-3/16” C. Inclined B. 1-1/4” D. A or B, but not C C. 1-9/32” E. A, B, or C D. 1-5/16” E. 1-9/16” 3. How many B-size sheets of paper can be obtained from an E-size sheet of paper, without waste? A. 2 B. 4 C. 8 D. 16 E. 32 6. The RP industry (only 15-20 years old) is characterized by devices that accept 3D CAD files, slice the data into crosssections, and construct bonded layers from the bottom up, which finally produce physical models of parts. What does RP stand for? A. Real Products B. Rapid Prototyping C. Raster Particles D. Ray Plotting E. Reverse Production 2009 Regional Engineering Graphics - 2 7. A common CAD term or command related to controlling what is displayed on the monitor: A. PLOT 10. For the object illustrated below, if the front view features the true size and shape of surface N, then what view would feature the true size and shape of surface M? B. POLYGON C. DIVIDE D. STRETCH E. ZOOM 8. In engineering graphics, a single orthographic projection of an object that has been turned and tilted, resulting in a pictorial drawing, can always be identified as a(n) ______ projection, regardless of the turn and tilt angles. A. Left side view B. Right side view C. Top view D. Front view E. An auxiliary view A. axonometric B. dimetric C. trimetric D. isometric E. oblique 11. You are designing a tube to hold dimes, and you want the inside diameter of the tube to be 1mm larger than the dime’s diameter. The tube material is 1 mm thick. Which of the following will be the outside diameter of the tube? 9. The top view illustrated below features a cutting plane line. What type of front view would you expect for this drawing? A. 4 mm B. 5 mm C. 20 mm D. 21 mm A. Half Section E. 110 mm B. Full Section C. Broken-out Section D. Revolved Section E. Offset Section 2009 Regional Engineering Graphics - 3 12. All of the symbols in the diagram below are explained in ASME Y14.36. What do these symbols pertain to? 15. Identify the number of degrees indicated as a result of putting together these two standard drafting triangles: A. Geometric tolerancing B. Surface texture C. Welding D. Knurling E. Screw threads A. 90° B. 100° 13. In the illustration below, which is a square thread form? C. 105° D. 110° E. 120° 16. Center point C for a R1.250” tangent arc can be established by swinging a ____” radius arc from point A, and a ____” radius arc from point B. 14. How much tolerance is allotted to the external feature in the illustration below? A. 1.375; 1.625 A. .007 B. .008 C. .010 D. .014 B. 1.625; 1.625 C. 2.750; 2.500 D. 2.750; 2.750 E. 4.250; 3.750 E. .018 2009 Regional Engineering Graphics - 4 17. Identify the best description of an ASME standard hidden line: 19. How many extension lines are shown in the drawing below? A. Alternating long, then short, dashes B. Medium-weight dashes with the spacing distance equal to the dash length C. Lighter lines made up of dashes, no requirement on size as long as they are spaced pleasing to the eye D. Thick dashes, about 1” each, with “dots” between E. Thin, short dashes closely spaced 18. Given a front and top view, with surfaces A through E visible by shape in the top view, which of the five surfaces is the closest to the bottom of the object? A. 10 B. 11 C. 12 D. 13 E. 14 20. Which of the following is a FALSE statement about oblique pictorial drawings? A. A worm’s eye view (from underneath an object) can be created with the depth axis (i.e. receding axis) angling in a downward direction A. A B. B C. C D. D E. E B. Circles remain true size if on a normal frontal plane of the object C. The depth axis (i.e. receding axis) can slope up to the right or up to the left D. The length of the depth axis (i.e. receding axis) can be half the true length (cabinet style) E. The depth axis (i.e. receding axis) must be 45° 2009 Regional Engineering Graphics - 5 21. CAD files are often given to the manufacturing team, and the data is processed into CNC programs that control the machine tools. What does the N in CNC stand for? 24. In the sectional assembly drawing illustrated below, through how many parts has the clevis pin been inserted? (Note: cotter pin not shown) A. Neural B. Nimble C. Nominal D. Numerical E. Negative A. 2 B. 3 22. How many “points of tangency” are featured within this graphic diagram? C. 4 D. 5 E. 6 A. 1 B. 3 C. 5 D. 7 E. 9 25. The top view of a cube shows the circular view of a counter-bored hole, through from top to bottom, with a cutting plane passing through the axis of the hole. How many visible line segments are required to create the sectional front view? A. 7 B. 8 23. What common terminology is illustrated by this heptagon and circle? C. 9 D. 10 E. 11 26. With respect to readability, 1/8” (approximately 3 mm) is a common size recommended for all of the following dimensions EXCEPT one: A. height of the lettering The heptagon is: B. length of the arrowhead A. inscribed within circle C. extension line past the arrowhead B. tangent to circle D. gap between extension line and object C. circumscribed about circle D. anchored to circle E. complimentary to the circle E. NONE of the above – all are recommended to be 1/8” 2009 Regional Engineering Graphics - 6 27. Identify the FALSE statement about screw threads. F. Screw threads are seldom drawn or shown as true projections 29. In engineering graphics, it is common to number the vertices of an object in order to help solve a problem. How many unique vertices does this object have? G. One symbolic method of showing screw threads is called schematic H. Acme threads are always shown in a symbolic method called simplified I. If the major diameter of screw threads on the drawing is less than an inch, the thread should probably not be represented as detailed J. The visual appearance of metric screw threads is essentially the same as Unified inch threads 28. For the illustration below, find a set of superfluous dimensions that could be deleted, leaving a properly dimensioned view? P. 11 Q. 12 R. 13 S. 14 T. 15 30. Counting ALL surfaces of the object in Question 29 above, how many are defined as normal? U. 3 V. 4 W. 5 X. 6 Y. 8 K. C-E-H L. H-F-L M. E-L N. D-E-F O. A-B-E-H 2009 Regional Engineering Graphics - 7 2009 Regional Engineering Graphics - 8 2009 Regional Engineering Graphics - 9 2009 Regional Engineering Graphics - 10 2009 Regional Engineering Graphics - 11 2009 Regional
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