2003 Academic Challenge

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1 Worldwide Youth in Science and Engineering 2003 Academic Challenge ENGINEERING GRAPHICS TEST - STATE FINALS Engineering Graphics Test Production Team Ryan Brown, Illinois State University Author/Team Coordinator Kevin L. 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. Some Academic Challenge test sites are using answer sheets that require you to fill in the letter of the answer you choose on the blank line after each question number. Others may 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 an incorrect answer. Be sure ovals are marked as. Not as,,. Test Question - 1. What is the name of the robotic helicopter used for surveillance by the U. S. Army? a. Eye in the Sky b. ROBOT I c. Surveyor I d. CYPHER e. Robospierre Answer Sheet-- 1. A B C E 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! 2003 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 2003 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 following would most likely be the size of the fillets and rounds on a small cast iron part? A..265 B..375 C..125 D..400 E An inclined surface is defined as a surface that is to one of the three principal projection planes, and to the other two. A. parallel; inclined B. perpendicular; parallel C. inclined; perpendicular D. inclined; parallel E. perpendicular; inclined 3. A(n) curve is a pair of arcs that is used in design to create a smooth transition from one line to another. A. short-break S B. ogee C. oval D. rectified E. conjugate 4. At its most basic form, the newest ASME standard symbol for specifying the surface texture of a feature on the drawing looks like a: A. Fancy F B. Plain S C. Check mark D. Semicircle E. Hexagon 5. How many sheets of A size paper can be obtained from a D size sheet of paper, without waste? A. 6 B. 2 C. 4 D. 10 E How many datums, if any, need to be established for perpendicularity control of a surface? A. One B. Two C. Three D. None E. It depends on the feature

3 Engineering Graphics 2 7. Which of the following is a TRUE characteristic of most welding drawings? A. Usually done in a pictorial format B. Show the parts exploded away from each other in a manner that helps identify how the parts are to be assembled C. Have a lot of leader lines with encircled numbers that refer to an explanatory numbered list of welding processes D. Appear as an assembly drawing of parts in position to be welded together E. Usually just schematic line diagrams without realistic part shapes 8. An auxiliary view that shows the true dihedral angle between two surfaces of an inclined or oblique V-groove would be projected from a view that shows: A. The top view of the object B. The true length view of the groove s shared edge 9. When using Cartesian coordinate input with a CAD system, values are usually either or. A. syntaxed; formatted B. integer; normal C. polar; rectangular D. absolute; relative E. distance; direction 10. define the surface features, edges, vertices, and volumetric information of an object. A. Solid models B. Associative models C. Spatial models D. Surface models E. Wireframe models 11. A geometric tolerancing control measured by rotating a part about a datum axis while checking the full indicator movement: C. The view that shows both sides of the groove true size and shape D. The front view of the object E. The point view of the groove s shared edge

4 Engineering Graphics Given a 2 cube with a 1 diameter hole from top to bottom, and another 1 diameter hole from front to back, both perfectly centered on their respective surfaces, how many straight hidden line segments are there in the right side view? A. 4 B. 6 C. 8 D. 10 E According to ASME standards, the recommended procedure for dimensioning a keyway in a hole: A. Two dimensions that show the width and height of the slot in reference to 12 o clock B. Broaching note with STD number C. General note on the drawing D. Local note pointing to the keyway E. Two dimensions that reflect the inside caliper readings that will need to be taken 14. One of the scientific orthographic principles often illustrated or solved by descriptive geometry is to find the true angle between a line and a plane. Which of the following is TRUE? The true angle is seen in any view wherein: A. The line and plane both appear as lines B. The line is a point, and the plane is true size and shape C. The line is a point, and the plane is an edge view D. The line is true length and the plane is seen as an edge view E. The plane is true size and shape, and the line is displayed in any manner 15. The ASME recommends a line to separate the two halves of a half section view. A. visible line B. center line C. phantom line D. freehand break line E. cutting plane line 16. What does 6H/6g represent in the following thread note: M10X1.5-6H/6g? A. Tolerance class B. Major diameter C. Thread form D. Thread series E. Thread pitch

5 Engineering Graphics The side of a gear tooth incorporates a geometric construction called a(n), which is defined by the path a string endpoint would make as the string is unrolled from a cylindrical surface. A. cycloid B. epicycloid C. involute D. mesh E. splinoid 18. A standardized data format that is used to exchange files between CAD systems that are uniquely different: A. DWG B. SME C. PRT D. IGES E. IPT 19. According to the U.S. Department of Labor s Occupational Outlook Handbook, the term for someone who prepares technical drawings and plans used by production and construction workers to build everything from manufactured products, such as toys, toasters, industrial machinery, or spacecraft, to structures, such as houses, office buildings, or oil and gas pipelines is called a: A. Drafting Technician B. Drafter C. Draftsman D. Drafting Technologist E. Designer 20. The ASME standard for American drawings recommends drawings be created based on angle projection. A. second B. first C. perspective D. inclined E. third 21. If a drawing of a new robotic machining cell, which is 10 x 30 in size, is to be drawn at a common reduced scale to fit on B-size paper, which of the following scales would allow the cell to be drawn as large as possible, and still fit on the page? A. 1:2 B. 1:4 C. 1 = 1-0 D. 1/2" = 1-0 E. 1/4" = Which of the following is an ASME standardized type of fit for inch applications? A. RC- running and sliding B. ST - standardized C. NI - notational interference D. FC - forced clearance E. MC - material condition

6 Engineering Graphics Of the following, which manufacturing company s drafting department would utilize development drawings the most? A. Electrical circuit board company B. Cast iron pipe company C. Tennis racket company D. Furnace ductwork company E. Automotive dash board supplier 24. In most engineering circles, the system is commonly used to determine the limits of size for two mating parts. A. bilateral unilateral B. selective assembly C. plus minus D. basic hole E. basic shaft 25. Which of the following pictorial types sometimes incorporates a cabinet rule for the depth dimension? A. 2-point perspective B. 1-point perspective C. Axonometric D. Dimetric E. Oblique 26. A surface that appears as a foreshortened shape in each of the three principal views (front, top, side) is defined as: A. Auxiliary B. Distorted C. Slanted D. Inclined E. Oblique 27. One benefit from creating a CAD model of a machine part is to test its response to stress with: A. Rendering and animation software B. Stereolithography software C. Finite element analysis software D. Flow mold analysis software E. VRML application 28. Which of the following is considered superfluous dimensioning? A. Specifying the depth of a counterbore with a depth symbol B. Locating the center of a rounded corner C. Dimensioning an angle with two linear measurements instead of one linear measurement and an angle D. Dimensioning an arc by radius E. Dimensioning a cylinder by its diameter 29. The condition in which a hole is at its smallest size: A. MMC B. LMC C. RFS D. TF E. TIM

Engineering Graphics 6 30. Which of these systems represents the ASME recommended method for placing dimension numerals on a decimal inch engineering print? 33.

7 Engineering Graphics Which of these systems represents the ASME recommended method for placing dimension numerals on a decimal inch engineering print? 33. The standard symbol for section lining of a bronze part: A. Position B. Unilateral C. Aligned D. Bidirectional E. Unidirectional 31. Given two 3 diameter circles, with centers 8 apart, and asked to create a 10 radius circle that is tangent to the two circles, how many possible different positions could there be? A. 2 B. 3 C. 4 D. 5 E A trimetric projection of an object with drafting equipment requires a: A. Different scale for each of the major axes B. 20 ellipse template for circular features C. Set of dividers for transferring measurements from a tri-scopic projection line 34. The standard included angle on Metric threads and Unified threads is: A. 60 B. 45 C. 90 D. 75 E The dimensions that locate a hole that is controlled by the symbol will most likely be: A. Dual-dimensioned B. Left off C. Reference dimensions D. Basic dimensions E. Toleranced with bilateral tolerance expression D. Right hand and left hand vanishing point pivot pin E. Softer pencil for rendering the results

8 Engineering Graphics Given a 3-view drawing (front, top, and side) of a right pyramidal frustum with a 2 square base and a 1 square top surface, which statement is TRUE? A. There are 4 hidden lines in the drawing B. There are 20 visible lines in the drawing C. All three views are identical 38. For the ISO symbol H7/d9, as applied to a clearance fit of a hole and a shaft, the H stands for: A. Hole B. Heat C. The level of clearance from A-K D. The level of allowance from G-L E. Hydrometer reading precision D. None of the views are identical E. There will be 6 lines in the drawing that are One technique that can be used to save drafting time for a coil spring: A. Draw the spring as a pictorial B. Draw the spring as a sectioned pictorial C. Simply show one phantom line at the center and use a leader line to give the spring note D. Show the spring in detailed representation E. Show the spring in schematic representation

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2003 Academic Challenge

Worldwide Youth in Science and Engineering 2003 Academic Challenge ENGINEERING GRAPHICS TEST - REGIONAL Engineering Graphics Test Production Team Ryan Brown, Illinois State University Author/Team Coordinator