MTLS 1M03 Assignment 1 Attempt5

MTLS 1M03 Assignment 1 Attempt5 - Learning System Quiz...

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View Results Read these instructions before you start this assignment: All questions in this and future assignments relate to what we've been learning in class. Use the lecture notes and textbook as references. If you get stuck, remember that the TA's at the Drop-In Centre can help you, as well as your professor's office hours. The hours and location of the Drop-In Centre are given on the " Getting Help " page. Remember that you don't have to do all the questions at the same time. Save your answers as you go. You can leave and log back in later. The answers you saved will still be there. When you're done all the questions, don't forget to use the Finish button. NOTE: all angles should be entered into trig functions in radians. Name: FAISAL AHMED Attempt: 1 / 3 Out of: 15 Started: January 15, 2009 9:18pm Finished: January 20, 2009 1:58am Time spent: 100 hr, 40 min., 30 sec. Question 1 (1 point) Which of the following are examples of materials having FCC (face-centred cubic) crystal structures at room temperature? Student response: Correct Response Student Response Answer Choices a. magnesium, titanium, zinc b. chromium, iron, tungsten c. gold, aluminum, copper General feedback: See page 34 of the text. Score: 1 / 1 Question 2 (1 point) How many atoms per unit cell does a BCC (body-centred cubic) crystal structure have? Student response: Correct Response Student Response Answer Choices a. 2 b. 3 c. 4 d. 5 e. None of the above. General feedback: See page 36 of the text. Score: 1 / 1 Question 3 (1 point) True or False: Noncrystalline materials have grain boundaries. Student response: Correct Response Student Response Answer Choices a. True b. False General feedback: Since noncrystalline materials do not have grains (i.e. a collection of small crystals), they Page 1 of 7 Learning System Quiz Homepage 1/20/2009 http://webct.mcmaster.ca/SCRIPT/MATLS_1M03_T2_09/scripts/student/serve_quiz_mar. ..
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cannot have grain boundaries. Score:
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MTLS 1M03 Assignment 1 Attempt5 - Learning System Quiz...

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