2003 Academic Challenge

Transcription

1 Worldwide Youth in Science and Engineering 2003 Academic Challenge ENGINEERING GRAPHICS TEST - SECTIONAL 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 (Sectional) Locations where three or more edges meet to form a point on a threedimensional model: A. Faces B. Vertices C. Tangencies D. Chords E. Splines 2. Given a right pentagonal prism, resting on the ground so that the front view features the pentagon shape; how many hidden lines are there in the top view, if any? A. None B. 1 C. 2 D. 3 E A conic intersection wherein the plane intersects the regular right cone parallel to the axis, but not on the axis is a: A. Parabola B. Circle C. Hyperbola D. Ellipse E. Helix 5. The aspect of product design and drafting that is concerned with the interaction between technology and humans? A. Functionality B. Ergonomics C. Finite element analysis D. Computer-aided manufacturing E. Dynamic analysis 6. The standard measuring system of the International Standards Organization (ISO): A. English units B. Western units C. Metric units D. Degrees and radians E. Imperial units 7. Which of the following documents is the latest ASME standard for dimensioning and tolerancing? A. Y14.5M B. Y C. Y D. Y E. Y For the right hand rule of coordinates for CAD modeling, the thumb points in the: A. Positive Z direction B. Negative X direction C. Positive Y direction D. Positive X direction E. Negative Y direction

3 Engineering Graphics 2 8. In dimensioning, if the numerical value is in parentheses: A. It has no tolerance. B. It has no limits. C. The actual drawing dimension is different than the number. D. It is the metric equivalent of the inch value. E. It is to be used as a reference only. 9. A rounded edge of a rib that intersects a curved surface such as a cylinder may cause a: A. Tailout B. Fillet C. Runout D. Blender E. Rough-in 10. Which of the following is NOT a subclassification of orthographic projection? A. Isometric B. Multiview C. Dimetric D. Oblique E. Axonometric 12. A tolerance callout of +/-.005 is an example of: A. Bilateral tolerancing B. Maximum material tolerancing C. Geometric tolerancing D. Limit method tolerancing E. Unilateral tolerancing 13. A thread in which the nut will advance two pitches for one 360 rotation along the screw is: A. Acme Thread B. Schematic Thread C. Double Thread D. Left Hand Thread E. Buttress Thread 14. For a development of a sheet metal box made of 1/16 thick sheet metal, the drafter must take into account: A. A curved stretchout line B. The bend allowance for the material C. The transition pieces that will be required D. The triangulation of the surfaces E. All of the above 11. In Geometric Dimensioning and Tolerancing, a dimension with a box around the number value is a: A. Size dimension B. Feature control frame C. Datum identification symbol D. Reference dimension E. Basic dimension.

4 Engineering Graphics Which geometric tolerance controls the largest vertical deviation between the highest and lowest points on a flat surface: 18. A(n) is generated by a point moving around and along the surface of a cylinder with a uniform velocity about the axis and a uniform velocity in the direction of the axis. A. helix B. spiral C. involute D. cycloid E. hypocycloid 16. Drawings or CAD plots that are going to be reproduced with a diazo process should probably be created on. A. vellum B. detail paper C. coated sheets of aluminum D. bristol board E. blueprint paper 17. You are given a decimal-inch based scale that exhibits a numeral 50 on one end. It has four longer tick marks between the 0 inch mark and the 1 inch mark, each labeled 2, 4, 6, and 8. Determine which of the following is FALSE: A. There will be 10 divisions between 4 and 6. B. Halfway between 4 and 6 is the tickmark for.5. C. 1/4" falls between 2 and 4. D. 3/8" falls between 4 and 6. E. The scale has tick marks for each What is the pitch of an M6 X 1-4H/5g thread? A. 6 inches B. 1/6 inch C. 6 mm D. 1 mm E. 4 mm 20. A conical enlargement at one end of a hole is called a: A. Spotface B. Counterbore C. Countersink D. Drill point E. Fillet 21. A full section view generated by multiple, connected cutting planes that are parallel but not coplanar is a(n): A. Revolved section B. Offset section C. Broken-out section D. Half section E. Partial section

5 Engineering Graphics An auxiliary view that shows the true shape of a surface will always be projected from a(n): A. Reference plane B. Front view C. Primary auxiliary view D. Top view E. Edge view of the surface in question 23. The solution of spatial relationships of points, lines, and planes by means of projections are the concerns of: A. Cartography B. Developments C. Descriptive geometry D. Graphical vector analysis E. Axonometric projection 24. A type of projection that has a fixed station point is: A. Cavalier projection B. Cabinet projection C. Axonometric projection D. Perspective projection E. First angle projection 25. The point of tangency between a given line and a circle is: A. Usually drawn between 3 and 6 o clock on the circle B. Always at a point perpendicular to the chord of the given line C. Really made up of more than one point D. Found at the intersection of two arcs, one drawn from any point along the given line and one drawn from any point on the circle E. Always at the end of an imaginary or real line drawn from the center of the circle perpendicular to the given line 26. In isometric drawing, a 2-inch ellipse is: A. Slightly smaller across the minor axis if it appears on the top surface B. About 4 inches across the longest axis C. Usually drawn with a compass in six parts, using a 6-point construction method D. Only 2 inches across the longest axis of the ellipse E. The same shape and size regardless of whether it appears on the front, top, or side

6 Engineering Graphics In general, the rule for dimensioning cylinders is: A. Specify the diameter with a leader line in the circle view B. Specify the radius with a onearrow dimension line in the circle view C. Specify the diameter with a linear dimension in the rectangle view D. Specify the radius with a leader line in the rectangle view E. Specify a leader line for both diameter and length 28. According to ASME standards, lettering on engineering drawings should be: A. Roman style B. Capitalized C. Slanted about 25 D. Created with a word processor or CAD system E. Both Roman style and capitalized 29. Computer-Aided Design (CAD) is often considered an integral part of the CIM concept. What does CIM stand for? A. Computer Instigated Machining B. Certified International Method C. Creative Invention Method D. Constant Input Modeling E. Computer Integrated Manufacturing 30. The principles of orthographic projection are usually explained with three projection planes, Frontal, Horizontal, and Profile. If a surface is parallel with the frontal plane, what is its relationship to the other two planes? A. Parallel to one, perpendicular to the other B. Parallel to one, inclined to the other C. Perpendicular to the other two D. Perpendicular to one, inclined to the other E. Inclined to the other two 31. Some views that are hard to solve otherwise, like an auxiliary view, often incorporate lines in the construction process as a means of transferring dimensions from view to view. A. outer B. transfer C. alternate D. fold E. center 32. A 3-view drawing (front, top, right side) of a 2 cylinder with a 1 hole straight through it would have: A. Total of 5 hidden lines B. Total of 4 circles C. Total of 4 center lines; two on the round view, and one on each of the others D. Total of 12 straight visible lines E. None of the above

7 Engineering Graphics According to ASME standards, section lines should always be: A. Drawn thin B. Exactly 1/4 apart C. Angled 45 up to the right D. Composed of medium dashes real close together E. Drawn based on the material of the object being cut 34. One method of dimensioning a flat metal plate with a complex pattern of holes is to use an arrowless system called: A. Tabular dimensioning B. Coordinate dimensioning C. Associative dimensioning D. Arrowless dimensioning E. Superfluous dimensioning 35. In Geometric Dimensioning and Tolerancing, a modifier is an encircled letter that affects the reading. Which of the following is a modifier? A. H Hole size dependent B. R Regardless of feature size C. D Datum feature size D. M Maximum material condition E. F Full indicator movement 36. Which of the following leader line guidelines for use is TRUE? A. Always connect the leader to a circle at 12 o clock if possible B. Always have the leader line vertical if possible C. Always have a 1/2" shoulder to your leader line if possible D. Keep leader lines inside the view of an object if possible E. Leaders should be at an angle, but aligned with, the center point of the circular feature if possible 37. The type of section view best suited to show the cross-sectional shape of a spoke, super-imposed right on the longitudinal view of the spoke: A. Aligned section B. Removed section C. Revolved section D. Offset section E. Half section 38. If a shaft has a limit dimension value of , and the hole with which it mates has a limit dimension value of , what is the allowance? A..032 B..006 C..017 D..011 E..015

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