Mid Term Test 2 2003 Solutions

Mid Term Test 2 2003 Solutions - Materials 2O03/...

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Material 2O03 Term Test #2 Page 1 of 9 Fall 2003 Materials 2O03/ Engineering 2O03 Term Test #2 (2003) Name: ___________________ Student No.:________________ Tutorial Section:____ Duration: 60 minutes Aids Allowed: 1 page crib sheet (8.5” x 11”) McMaster Standard Casio FX-991 calculator Be sure to show your work so that part marks can be awarded for incomplete answers. Be sure to include units with all answers that require them. Marks will be deducted for using an inappropriate number of significant digits in your final answer. Total marks: 100 Part A: The following multiple choice questions are worth 5 marks each. In each case, circle the answer you think is most appropriate. 1. Which of the following is not a phase? a) Martensite b) Cementite c) Bainite d) Ferrite Question Mark 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Total
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Material 2O03 Term Test #2 Page 2 of 9 Fall 2003 2. Which of the following has the highest hardness a) Fine pearlite b) Martensite c) Bainite d) Tempered martensite 3. Which of the following has the highest ductility a) Fine pearlite b) Martensite c) Bainite d) Tempered martensite 4. Which of the following is not possible a) A binary phase diagram with four phases b) A binary phase diagram in which a liquid and a solid phase react on cooling to form another solid phase c) A binary phase diagram with three components d) A binary phase diagram in which a solid phase reacts on cooling to form two different solid phases. 5. To protect a computer from stress, one should use packaging materials with: a) high Young’s modulus b) low Young’s modulus c) medium Young’s modulus d) none of the above
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Material 2O03 Term Test #2 Page 3 of 9 Fall 2003 6. Materials deformation is usually caused by: a) point defect diffusion b) dislocation motion c) annealing d) secondary particles 7. The strategy of using dislocations to impede the dislocation motion is named:
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This note was uploaded on 02/13/2010 for the course ENGINEERIN 1m03 taught by Professor Porove during the Spring '10 term at McMaster University.

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Mid Term Test 2 2003 Solutions - Materials 2O03/...

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