2001 Academic Challenge

Transcription

1 Worldwide Youth in Science and Engineering 2001 Academic Challenge ENGINEERING GRAPHICS TEST - SECTIONAL GENERAL DIRECTIONS Engineering Graphics Test Production Team Ralph Dirksen, Western Illinois University Team Leader/Co-Author Richard Carter, Western Illinois University Co-author Rafael Obregon, Western Illinois University Co-author Joe Kotowski, Oakton Community College Reviewer Don Wayman, WYSE Coordinator of Test Production 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 A B C E e. Robospierre Answer Sheet-- 1. 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! 2001 Worldwide Youth in Science and Engineering

2 WYSE, Worldwide Youth in Science and Engineering and the WYSE Design are service marks of and this work is Copyright 2001 Board of Trustees of the University of Illinois at Urbana - Champaign. All rights reserved.

3 WYSE Academic Challenge Engineering Graphics Test (Sectional) Which of the following are standard CAD exchange file formats? a. DXF and IGES b. MPEG and JPEG c. ARJ and TIFF d. GIF and PIX 2. Regardless of measurement system, CAD drawings are created size. a. full b. half c. quarter d. eighth 3. The preferred methods for representing threads, especially in drawings of small parts, are designated as: a. Actual and detailed b. Notational and graphic c. Simplified and schematic d. Symbolic and pictorial 4. In CAD, standard or individual symbols such as electronic components, piping fittings, welding symbols, etc., are often drawn and stored as for repeated future use. a. units b. sets c. grips d. tabs 5. Phantom lines, which features include, are used to indicate alternate positions of parts. a. alternating long and single short dashes b. alternating one long and two short dashes c. alternating two long and one short dash d. alternating two long and two short dashes 6. What kind of auxiliary view should be projected from an object which has an inclined surface that is oblique to all of the principal views? a. Perpendicular auxiliary view b. Primary auxiliary view c. Secondary auxiliary view d. Sectional auxiliary view 7. Which kinds of sectional views are best used for symmetrical objects? a. Half Sections b. Partial Sections c. Broken-out Sections d. Revolved Sections

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5 8. The maximum and minimum sizes allowed in the manufacture of a part, used as dimensions in drawings, are commonly identified as: a. References b. Total units c. Limits d. Manual sizes 9. Dual dimensioning is the practice of giving size descriptions of a part in terms of its: a. Tolerances and limits b. Nominal and precision sizes c. Base-line and in-line dimensions d. Metric and English sizes Engineering Graphics Keys, adjoining keyways and keyseats, serve the purpose of: a. Unlocking secured parts b. Fastening parts together c. Separating threaded fasteners d. Locating tapers and fillets 12. In CAD, the term GUI is used to refer to the: a. Graphic User Interface b. Geometric Units Interface c. General Ulterior Interface d. Great Ultra Interface 10. In the thread notation 1-8UNC-3B, the 3B represents that the thread has: a. Class 3 fit internal thread b. 3 threads external c. 3 diameter with 3 threads per inch d. Class B fit on a 3 long thread

6 Engineering Graphics 3 Answer questions 13 through 16 based on the following working drawing. TITLE: MATCHING PLATE UNLESS OTHERWISE SPECIFIED ALL DIMENSIONS ARE IN INCHES BY: R.O. TOLERANCES.X ±.005.XX ±.002 DATE: 10/25/00.XXX ±.001 ANGLES ± 1 MATERIAL: C R S SCALE: FULL SHEET: 1/1 13. What is the maximum acceptable size for 14. All dimensions surrounded by a any of the holes? rectangle are identified as: a..245 a. Critical b..250 b. Basic c..255 c. Important d..260 d. Normal

7 WYSE Academic Challenge Engineering Graphics Test (Sectional) Engineering Graphics The secondary datum for the true position 16. The symbol denotes tolerance is: a. Parallelism a. A b. Flatness b. B c. Straightness c. C d. Perpendicularity d. M Select the correct missing view for each of the following problems (17 through 36)

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13 Engineering Graphics 10 Answer questions 37 through 50 based on the following working drawing. Ø 0.88 Ø F 0.88 H 6.75 G J E P N K L M UNLESS OTHERWISE SPECIFIED ALL DIMENSIONS ARE IN INCHES BY: R.CARTER TOLERANCES.X ±.005.XX ±.002.XXX ±.001 DATE: 10/25/00 ANGLES ± 1 ADJUSTABLE BRACKET PART NO: NF89 (REQD: 350) MATERIAL: C R S SCALE: FULL SHEET: 1/1 37. What is the diameter of the hole that goes all the way through the cylinder? a b c d What is the part made of? a. Carbon Steel b. Carbon Dioxide c. CRS Composite d. Cast Iron

14 WYSE Academic Challenge Engineering Graphics Test (Sectional) Engineering Graphics Surface N can be seen in true shape 44. What is the distance J? in which view? a a. Primary auxiliary view b b. Top view c c. Front view d d. Secondary auxiliary view 45. Calculate measurement K. 40. Calculate angle F. a a. 60º b b. 30º c c. 45º d d. cannot be calculated 46. How tall is measurement L? 41. What is the Diameter of E? a a b b c c d d How deep is the slot that runs through the 42. What is the manufacturer s identification base of this bracket? number for this product? a a. 350 b b. NF89 c c. CRS d d. Adjustable Bracket 48. How wide is measurement H? 43. What is the distance G? a a b b c c d d. 1.00

15 Engineering Graphics What is the thickness of M? 50. What is the depth of P? a a b b c c d d. 0.88