quiz6s02 - a. 0.8% b. 4.3% c. 6.7% ( ) 6. Maximum...

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Home Introduction Policies Resources Requirements & Grading Syllabus Assignments Handouts Discussion Web Links Distance Learners Contact MSE 200 MSE 200, Quiz 6 S. S. Number
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1. Cementite is a. solid solution of carbon in iron b. intermetallic compound c. Interstitial solid solution (b ) 2. The maximum amount of carbide ina steel of 1.4% carbon is no more than a. 20% b. 15% c.5% ( a) 3. Low carbon steels are rolled a. above the A3 temperature b. below A123 temperature c. above Acm temperature (a ) 4. Hypereutectoid steels are heat treated by heating above a. above A3 line b. above A123 line c. above Acm line ( b) 5. Eutectic composition where cast iron are made is
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Unformatted text preview: a. 0.8% b. 4.3% c. 6.7% ( ) 6. Maximum solubility of carbon in gama iron is a. 0.025% b. 0.8% c. 1.8% ( c) 7. Solid solubility of carbon in bcc iron compared to that in fcc iron is a. low b. equal c. high (a ) 8. Gray cast iron are brittle because of a. high cementite b. graphite as flakes c. graphite as nodules (b ) 9. Ductile cast iron is made by adding a. 2 to 3% Si b. 2 to 3% Si with 0.3 Mg and Ce c. 4% nickel (b ) 10. Pearlitic steel has a carbon percentage of a. 0.4% b.0.8% c. 4.3% (b ) Bonus 11. The best thing I like about MSE 200 is: The worst thing I like about MSE 200 is:...
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This note was uploaded on 10/11/2009 for the course MSE 200 taught by Professor Wholedepartment during the Spring '08 term at N.C. State.

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quiz6s02 - a. 0.8% b. 4.3% c. 6.7% ( ) 6. Maximum...

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