2009 Academic Challenge

Transcription

1 2009 Academic Challenge ENGINEERING GRAPHICS TEST SECTIONAL 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. One oval should be marked to answer each question. Multiple ovals will automatically be graded as an incorrect answer. 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 Copyright 2009 by the Board of Trustees of the University of Illinois at Urbana Champaign. All rights reserved

2 WYSE Academic Challenge Engineering Graphics Test (Sectional) In engineering graphics, the scientific explanation for creating views of an object is best expressed by the word. A. projection B. art C. oblique D. pictorial E. auxiliary 4. The definition of a normal surface is a flat planar surface parallel to a principal plane of projection (frontal, horizontal, or profile). For the object illustrated below, counting ALL surfaces, how many normal surfaces are there? 2. In the metric system, standard A4 paper is 210mm x 297mm. In comparison, what is the metric size of inch-based engineering A-size paper? A. 100mm X 200mm B. 200mm X 300mm C. 210mm X 270mm D. 216mm X 279mm E. 225mm X 300mm 3. As illustrated below, the circle with center point G is tangent to the triangle at three places. Identify the statement below that is definitely TRUE. A. 6 B. 7 C. 8 D. 9 E This isometric drawing shows one-inch cubes and square planes in normal orientation, and two marbles, each centered on a square surface. If measured center-to-center, how far apart are the two marbles? A. Angle FCE equals angle DBE B. Segment BE equals segment CE C. Points D, E, and F are equally spaced about the circle D. Point G is equidistant from points A, B, and C E. Segment GE is perpendicular to segment BC A. 3.0 B. 3.2 C. 3.6 D. 4.0 E. 4.2

3 Engineering Graphics Identify the standard name of the jagged line in this broken-out section: A. Granite line B. Section line C. Break line D. Cutting plane line E. Phantom line 9. If a cover is designed to be attached with flathead screws, the clearance holes are usually created with a. A. counterbore B. keyway C. knurl D. countersink E. washer 10. This local note would be associated with what part feature? 7. What caption best describes this illustration? A. Metric screw thread B. Chamfered edge C. Woodruff key D. Metal plating on a small area E. Embossed lettering 11. In the illustration below, how many reference dimensions are there? A. A front view and removed sections B. A front view, partial side view, and partial auxiliary view C. Views by revolution D. Detail views E. Secondary auxiliary views 8. Subtractions, unions, and intersections within CAD modeling are usually referred to as operations. A. parametric B. Boolean C. associate D. lofting E. standard A. 0 B. 1 C. 2 D. 3 E. 4

4 Engineering Graphics If the part illustrated below is produced within the tolerances specified, what is the largest possible distance between X and Y? 14. Some textbooks refer to the main lines that represent an object in a drawing as object lines. The ASME standard name for these lines is lines. A. outline B. border C. visible D. contour E. thick A B C D E Examine the illustration below featuring an A-size drawing of a 1/4" diameter dowel rod, 1.5 long. Based on what you know about paper sizes and scale, at what scale were these views created? 13. The flat pattern development illustrated below is missing four folding lines. What common 3D geometric shape would be created if the pattern were cut out and folded together properly? A. 1:4 B. 1:2 C. 1:1 D. 2:1 E. 4:1 A. Cone B. Pyramid C. Torus D. Rhombus E. Frustum 16. ASME Y14.8M, entitled Castings and Forgings, focuses on an area of manufacturing that includes the production of parts that are. A. made in a mold B. transported with wheels C. vacuum-formed plastic D. soldered to electronic PC boards E. welded

5 Engineering Graphics For the table below, n = the number of sides for a polygon, and SUM = the sum degrees of the interior angles of that polygon. The formula for determining the sum of interior angles is therefore. 20. Which of the following phrases is FALSE with respect to cutting plane lines? A. Drawn thick B. Two choices for dash methodology C. Must always be shown D. Can be offset through non-aligned features E. Should not be in section view itself A. n X 60 B. n X 90 C. (n+1) X 45 D. (n-1) X 90 E. (n-2) X To create a correct multiview drawing, how many hidden line segments will it take to complete the missing line problem illustrated below? 18. This dimension uses a symbol that is equivalent to the word. A. flat B. metric C. center D. basic E. square 19. A(n) is a type of pictorial drawing wherein surfaces parallel with the frontal plane remain true size and shape. A. dimetric B. two-point perspective C. isometric D. oblique E. trimetric A. 1 B. 2 C. 3 D. 4 E In the illustration below, which of the fastener heads is a socket head? A. A B. B C. C D. D E. E

6 Engineering Graphics In most CAD systems, which polar direction value is equivalent to southwest? (See figure below) A. +45 B C D E Imagine (or sketch), (1) line segment AB; (2) a circle with radius = AB with a center point at A; (3) another circle, same radius, but center point at B; and (4) two intersections of the two circles labeled points C and D. Select the FALSE statement. A. A line from C to D bisects line AB B. Triangle ABC = triangle ADB C. Angle ADB = 60 D. Triangle ABC is an equilateral triangle E. Polygon ACBD is a square 26. As illustrated here, a view of an object that has a rounded edge intersecting a curved surface may result in a. 24. When dimensioning the object below with tolerances, dimensioning causes the greatest tolerance accumulation between feature A and feature B. A. geometric B. chain C. basic D. baseline E. arrowless A. chase B. runout C. curl D. knurl E. key

7 Engineering Graphics In an orthographic projection, flat planar surfaces are defined by their orientation in space. The three types of surfaces are normal, inclined, and. A. oblique B. slanted C. rotated D. cylindrical E. auxiliary 29. The illustration below appears in the ASME Y14.3 document. What caption is appropriate for this figure? 28. What is a common name for the pictorial drawing illustrated below? A. Spokes in sections B. Fillets in sections C. Removed sections D. Revolved sections E. Ribs in sections 30. The illustration below is similar to one found in the ASME Y14.5 document. What caption is best suited for this illustration? A. 3-point perspective B. Cabinet oblique drawing C. Exploded assembly drawing D. Detailed multiview projection E. Coaxial schematic diagram A. Chamfers between nonperpendicular surfaces B. Using phantom lines C. Using leaders for small edge breaks D. Dimensioning fillets E. Setback requirements

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