2004 Academic Challenge

Transcription

1 2004 Academic Challenge ENGINEERING GRAPHICS TEST - REGIONAL 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. 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,,, etc. Test Question - 1. Which planet was closer to Earth in 2003 than it had been for 60,000 years? a. Jupiter b. Mercury c. Neptune d. Mars e. Venus 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! 2004 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 2004 Board of Trustees of the University of Illinois at Urbana - Champaign. All rights reserved.

2 WYSE Academic Challenge Engineering Graphics (Regional) Which of the following statements about multiview projections is a FALSE statement? A. Side views always exhibit width B. Side views are usually adjacent to front views C. Side views always exhibit height D. Side views always exhibit depth E. Side views can be identical 2. If a drawing of a part has a hole with a toleranced dimension of and the mating shaft drawing indicates a shaft diameter of.505 ±.015, what is the loosest fit of these two parts? A..030 B..052 C..064 D..082 E ASME standards establish standard line conventions for engineering drawings, which includes the appearance and name of each line. Which line could be described as a line composed of medium length dashes, drawn thick? A. Hidden B. Short Break C. Cutting Plane D. Center E. Phantom 6. In the drawing of the pipe elbow shown here, what type of view would be used to show the true size and shape of the upper flange instead of a top view? 3. On a triangular architect s scale, there is usually one full-size scale and other reduced-size scales. A. four B. five C. six D. eight E. ten 4. The difference between a spotface and a counterbore is primarily the: A. Diameter B. Machining process C. Angle of cut D. Depth E. Number of sides A. Perspective B. Auxiliary C. Isometric D. Sectional E. Oblique 7. Which of the following is a POOR decision related to choosing or placing dimensions? A. Line dimensions up when possible B. Place dimensions between views when possible C. Dimension a cylinder by diameter in the rectangular view D. Dimension holes by radius in the profile view of the hole E. Dimension features in the view where the 2D shape is shown

3 Engineering Graphics 2 8. Which of the following is NOT a quadrilateral? A. Heptagon B. Square C. Trapezoid D. Rectangle E. Rhombus 9. Technical drawings of mechanical parts of a washing machine, if dimensioned with the metric system, would most likely be expressed in: A. Meters B. Kilometers C. Decameters D. Millimeters E. Centimeters 10. Given a cavalier oblique drawing of a 2 cube, with three 1 diameter through holes perpendicular to each normal surface, identify the FALSE statement: A. There will be nine straight lines in the drawing that are 2 long B. There will be three horizontal lines in the drawing C. There will be three lines in the drawing at an inclined angle to the horizontal D. There will be three vertical lines in the drawing E. There will be three ellipses in the drawing 11. To dimension the number of degrees in an angle, use a: A. General note B. Leader line C. Curved dimension line D. Coordinate dimension E. Radial set of arrows 12. ASME Y14.5M is a document that drafters use as a national standards reference. What does the M of ASME stand for? A. Manufacturing B. Modern C. Motor D. Mechanical E. Machinist 13. Which of the following is NOT TRUE about professional 2D CAD systems? A. Can create an array of items around a center point in a polar fashion B. Have a layer or level system for separating entities C. Utilize Boolean operations to build more complex models from primitives D. Have a system of creating and storing pre-drawn symbols to be inserted into drawings E. Have plotting command to create a paper copy of any portion of the drawing exactly to any scale 14. When a rib occurs in a section view, if the cutting plane cuts the rib: A. Crosswise, the rib should be section lined with alternate section lines B. In any direction, then outline that rib with hidden lines C. Flatwise, the rib area should not be section lined D. Crosswise, then outline the rib with phantom lines E. Flatwise, then outline the area, and section line all cut areas

4 Engineering Graphics The primary difference between Acme threads and square threads is the: A. Pitch B Angle of thread groove C. Depth of form D. Major diameter E. Lead 15. What size paper is being folded to 8.5 x 11 in the illustration above? A. A B. B C. C D. D E. E 16. If a regular cone is sliced by a plane in such a way that the base is intact, and the slicing plane is parallel with the base, the shape of the slice material is: A. Circular B. Hyperbolic C. Elliptical D. Parabolic E. Tangential 17. A device especially designed for creating guidelines for lettering: A. French Linemaster B. Exacto Guideliner C. Erasing Shield D. Leroy Lettering Device E. Ames Lettering Guide 19. A glass box of projection planes is used to help explain the principles of multiview projection. If a surface of an object is perpendicular to one of the six glass box planes, to how many other planes, at most, will the surface be perpendicular? A. One B. Two C. Three D. Four E. Five 20. If a visible line coincides with a hidden line: A. Move the hidden line 1/32 over B. Use a phantom line C. Omit the visible line D. Omit the hidden line E. Use the hidden line, but make it thicker 21. In isometric drawing, how many degrees are there between the height axis and the width axis? A. 30 B. 45 C. 70 D. 90 E. 120

5 Engineering Graphics Given two circles that are tangent, the point of tangency will always be: A. Perpendicular to the endpoint of a vertical radial line on the larger circle B. Somewhere along a line connecting the two center points C. Perpendicular to the midpoint of a line tangent to the two circles on either side D. On the midpoint of a line connecting the two center points E. At 3 o clock on the smaller circle, assuming both circles are tangent with a horizontal line 23. Using drafting equipment, which of the following represents the best way to draw a line that is 30 from vertical? A. Set the long side of a 30 /60 triangle along the T-square s horizontal edge, and draw along the hypotenuse B. Use a protractor to mark off the 30 mark, and draw through the mark with the edge of the scale C. Put the 45 triangle together with the 30 /60 triangle (hypotenuse to hypotenuse) and use either edge of the 45 triangle D. Set the hypotenuse of the 30 /60 triangle along the horizontal edge of the T-square, and draw along the short edge of the triangle E. Set the hypotenuse of the 30 /60 triangle along the horizontal edge of the T-square, and draw along the long edge of the triangle 24. In a 3-view drawing (front, top, side) of a cube that features two separate through holes (top to bottom), what is the minimum number of hidden lines that might appear in the drawing? A. 4 B. 5 C. 6 D. 7 E What input device would most likely be used by CAD systems that utilize a 12 square menu sheet, containing several of the commands, printed in rows and columns? A. Joystick B. Digitizing Tablet C. Infared Mouse D. Light Pen E. Function Keypad 26. If a flat planar surface appears as a foreshortened shape in the top view, which of the following is a FALSE statement? A. The surface might appear foreshortened in the front view also B. The surface might be true size and shape in the front view C. The surface might appear as a line in the front view D. The surface might appear as a line in the right side view E. The surface might appear foreshortened in the side view also

6 Engineering Graphics Placing too many dimensions on a drawing is referred to as: A. Superfluous dimensioning B. Streamlined dimensioning C. Optional dimensioning D. Baseline dimensioning E. Coordinate dimensioning 28. A knurl would most likely be dimensioned with a: A. Tolerancing symbol B. Thread Note C. Pair of linear dimensions D. Local Note E. Surface texture symbol 29. A section view featuring a freehand broken line and a cutting plane that only cuts part of the way into the object is called a(n): A. Aligned Section B. Broken Out Section C. Revolved Section D. Half Section E. Removed Section 30. In instrumental drafting, which piece of drafting equipment would most likely be used to draw a spline? A. Dividers B. Compass C. 45 Triangle D. Irregular Curve E. T-Square 31. Which of the following represents the plane upon which geometry is usually drawn in a 3D CAD system? A. X-Y B. U-V C. Y-Z D. A-B E. X-Z 32. Which of the following is NOT an advantage of CAD? A. Equipment cost B. Speed C. Neatness D. Legibility E. Accuracy 33. For a drawing of a tube that contains a conventional S-Break, how many areas in the drawing will receive section lines? A. Zero B. One C. Two D. Three E. Four 34. The interior angles of a hexagon add up to: A. Less than 180 B. 180 C. 360 D. 540 E. More than 540

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