Engineering :: Metallurgy
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| 191. |
Which of the following operation on grey cast iron will result in the production of white cast iron? |
| A. |
Tumbling |
B. |
Tempering |
| C. |
Shot peening |
D. |
Rapid cooling |
| E. |
Rapid heating |
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Answer: Option E
Explanation:
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| 192. |
Nodular iron has low |
| A. |
Machinability |
B. |
Tensile strength |
| C. |
Fluidity |
D. |
Melting point |
Answer: Option D
Explanation:
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| 193. |
Which of the following metal does not have face centred cubic structure? |
Answer: Option C
Explanation:
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| 194. |
Which of the following metal has face centred cubic structure? |
Answer: Option B
Explanation:
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| 195. |
Which of the following material has body centred cubic structure? |
| A. |
Molybdenum |
B. |
Cadmium |
| C. |
Glass |
D. |
Magnesium |
| E. |
Zinc. |
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Answer: Option A
Explanation:
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| 196. |
Which of the following material does not have body centred cubic structure? |
| A. |
Vanadium |
B. |
Potassium |
| C. |
Lithium |
D. |
Zirconium |
| E. |
Chromium |
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Answer: Option D
Explanation:
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| 197. |
Which of the following element has hexagonal close packed structure? |
| A. |
Aluminium |
B. |
Molybdenum |
| C. |
Cadmium |
D. |
Chromium |
| E. |
Lead |
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Answer: Option C
Explanation:
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| 198. |
Which of the following material does not have hexagonal close packed structure? |
| A. |
Magnesium |
B. |
Alpha iron |
| C. |
Titanium |
D. |
Zinc |
| E. |
Cadmium |
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Answer: Option B
Explanation:
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| 199. |
Which of the following constituent will increase the hardness of steel? |
| A. |
Martensite |
B. |
Pearlite |
| C. |
Austenite |
D. |
Cementite |
| E. |
All of the above |
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Answer: Option A
Explanation:
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| 200. |
When steel is made from phosphatic iron, it is likely to be |
| A. |
Malleable |
B. |
Ductile |
| C. |
Hard |
D. |
Brittle |
| E. |
Tough |
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Answer: Option D
Explanation:
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