test1 mtls 2004 sult - Materials 1M03 Test#1 2004 Version#2...

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Materials 1M03, Test #1 2004 Version #2 Last Name:_____________________________ First Name: ______________________ Student ID#: _________________________ Tutorial Section:_____________________ MATERIALS 1M03 TERM TEST #1, 2004 This test contains 9 pages and 14 questions. You are responsible for ensuring that your copy of the paper is complete. Bring any discrepancy to the attention of your invigilator. A 1 2 3 4 Total SPECIAL INSTRUCTIONS: Aids allowed: 1 page crib sheet, nominally 8½ by 11 in. McMaster standard Casio FX-991 calculator Answer all multiple choice questions on the special answer sheet only. Answer all written questions on the examination copy. 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, but always use a minimum of three significant figures. The value of each question is shown. The total for the exam is 60 marks Useful constants: Gas constant, R = 8.31 J/mol-K Charge per electron, e = 1.6 x 10 -19 C Avogadro’s number, N A = 6.02 x 10 23 Boltzmann’s constant, k = 1.38 x 10 -23 J/atom-K = 8.62 x 10 -5 eV/atom-K Part A: The following multiple choice questions are worth 3 marks each. In each case, put your answers on the scan sheet (marked McMaster University Examination Answer Sheet). Read the Marking Directions on this sheet carefully before starting. 1. Powdered samples are used in diffraction to study a material’s crystal structure. Pick one of the options that is true of an ideally powdered sample: a) It will contain only a limited number of grains b) It will show only the (111) planes to the incoming beam c) It is anisotropic d) It will contain grains of all orientation Page 1 of 9
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Materials 1M03, Test #1 2004 Version #2 2. Which of these statements regarding the critical nucleus size for solidification is NOT true? a)
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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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test1 mtls 2004 sult - Materials 1M03 Test#1 2004 Version#2...

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