2007 Academic Challenge

Transcription

1 2007 Academic Challenge ENGINEERING GRAPHICS TEST - STATE FINALS This Test Consists of 50 Questions 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. 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! 2007 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 2007 Board of Trustees of the University of Illinois at Urbana - Champaign. All rights reserved.

2 WYSE Academic Challenge Engineering Graphics Test (State Finals) Which of the phrases below is the reading represented by the feature control frame illustrated? A. Square within.005 B. Angular within.005 C. Flat within.005 D. Perpendicular within.005 E. Straight within A drawing of a part made by forging is most likely a part. A. Wooden B. Plastic C. Rubber D. Cardboard E. Metal 4. In the three regular views (front, top, side), a normal surface will appear: A. As a line in two views and true size and shape in the other view B. As a line only once C. True size and shape twice D. As a foreshortened shape in all three views E. As a foreshortened shape in one view 5. Which of the following technical areas would most likely use a graphical schematic such as the one illustrated? 3. Given a loop of string, two pins as indicated, and a pencil inside the string loop keeping it taut, what shape results from moving the pencil clockwise completely around the pins? A. Hydraulics & Pneumatics B. Civil Engineering C. Kinematics D. Electronics E. HVAC (Heating, Ventilation, & Air Conditioning) A. Helix B. Ellipse C. Cycloid D. Rectangle E. Parabola 6. Which of the following is the proper representation of a phantom line?

3 Engineering Graphics 2 7. In multiview drawings, some line segments represent the limiting elements (maximum contour) of a curved surface. Of the line segments in the multiview below, how many have this meaning? 10. Given a 1 square with an included isosceles triangle A-B-C, which of the following statements is TRUE? A. 2 B. 3 C. 4 D. 5 E Not knowing how the part illustrated below is to be manufactured or used in an assembly, what is the minimum number of dimensions required to fully describe the part? A. The area of the triangle A-B-C is.66 in 2 B. Triangle A-B-C is a right triangle C. Triangle A-B-C is an equilateral triangle D. Angle A-B-C is less than 60 E. Side A-B is long 11. For the object illustrated below, counting ALL surfaces on all sides, how many inclined surfaces are perpendicular to the horizontal plane (not shown)? A. 5 B. 6 C. 7 D. 8 E Which of the following scales reduces the drawing to a 1:96 ratio? A. 1/4 = 1-0 B. 1 = 1-0 C. 1/8 = 1-0 D. 1 = 10-0 E. 3/16 = 1-0 A. 1 B. 2 C. 3 D. 4 E What pictorial drawing term or concept is illustrated by the appearance of the rails converging at the horizon as a person stands and looks down a long, level, straight section of railroad track? A. Cavalier depth B. Axonometric axis C. Field of vision D. Station point E. Vanishing point

4 Engineering Graphics Using good dimensioning practice, how many additional dimensions should be placed on the front view of the object illustrated below? 16. Given a multiview drawing with one or more views incomplete, what is the minimum number of line segments (visible or hidden) required to finish the multiview and make it a correct drawing? A. 1 B. 2 C. 3 D. 4 E Given BC parallel with DE, and CD parallel with EF, what is angle EFA? A. 3 B. 4 C. 5 D. 6 E To show the shape of the spoke material, what type of sectional view could be placed directly on the front view illustrated below? A. 70 B. 80 C. 90 D. 100 E Which of the word pairs below describe two main modes of 3D CAD modeling? A. Shaded & Wireframe B. Architectural & Structural C. Detail & Assembly D. Technical & Artistic E. Surface & Solid A. Revolved B. Offset C. Broken out D. Half E. Aligned

5 Engineering Graphics All auxiliary views projected adjacent to the front view are referred to in some texts as auxiliaries because this dimension will always be present. A. Length B. Height C. Depth D. Width E. Breadth 19. What ASME standard symbol is illustrated below? A. Counterbore B. Spotface C. Drill D. Ream E. Countersink 20. Identify the tool illustrated below: A. Tap B. Die C. Reamer D. Broach E. Key 22. What basic size should be specified for the slot illustrated below so that it will have a clearance of.005 to.025 with the tab? A..470 B..475 C..480 D..485 E Identify the item illustrated below: A. Set screw B. Woodruff key C. Stud D. Jam nut E. Machine screw 24. Which ASME standard method of representing a threaded hole is shown in the illustration below? 21. ALL FILLETS & ROUNDS R.062 UNLESS OTHERWISE SPECIFIED is an example of a: A. General note B. Surface quality specification C. Local note D. Reference dimension E. Leader note A. Detailed B. Schematic C. Simplified D. Both simplified and schematic are shown this way in these views E. Detailed, schematic, and simplified are all shown this way in these views

6 Engineering Graphics How many visible line segments are required to create an isometric drawing of the object illustrated by the following multiview drawing? 27. For the auxiliary view shown and labeled, identify the FALSE statement. A. 14 B. 15 C. 16 D. 17 E. 18 A. In the partial primary, surface is true size and shape B. In the right side view, the distance from 5 to 1 is true distance C. In the front view, the distance from 6 to 3 is true distance D. In the front view, the distance from 5 to 4 is true distance E. In the right side view, the distance from 3 to 6 is true distance 28. How many dimensions must be added to fully dimension this 2D drawing? 26. In the sectional assembly drawing illustrated below, how many parts are bolted together? (Note: do not count the nut and bolt) A. 3 B. 4 C. 5 D. 7 E. 8 A. 0 B. 1 C. 2 D. 3 E. 4

7 Engineering Graphics The most extensive ASME drafting standard is Y14.5M-1994 (reaffirmed 2004), and is entitled Dimensioning and. A. Tolerancing B. Drawing C. Geometry D. Specifications E. Measuring 30. The common term for creating a 3D CAD model by giving height or thickness to a 2D region or closed shape: 32. The symbol illustrated below means: A. Mean value B. Minimum size C. Manufacturing spec point D. Median dimension E. Maximum material condition 33. The dimension illustrated below is representative of a: A. Ream A. Unilateral tolerance dimension B. Spread B. Dual dimension C. Union C. Plus & minus method tolerance D. Extrude dimension E. Mount D. Limit method tolerance dimension 31. Which statement is TRUE with respect to the descriptive geometry illustrated below? E. Basic dimension 34. Given a flat pattern development for a snow cone cup, what diameter snow cone ball would you expect to fit in this cup? (Hint: Equator of snow cone ball is approximately at the top rim of the cup) A. Line rs is parallel with the frontal plane B. Line rs projects true length on the profile plane C. Line rs projects foreshortened on the frontal plane D. Line rs projects true length on the horizontal plane E. Line rs is a normal line A. ~1.5 B. ~2 C. ~2.5 D. ~3.25 E. ~6.25

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