Engineering :: Engineering Materials
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| 281. |
All of the following are destructive tests on materials EXCEPT: |
| A. |
Cupping test |
B. |
Tensile test |
| C. |
Charpy test |
D. |
Shore's scleroscope hardness test |
| E. |
Fatigue test |
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Answer: Option D
Explanation:
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| 282. |
Which of the following materials demonstrate viscoelastic behaviour? |
| A. |
Rubber |
B. |
Glass |
| C. |
Plastics |
D. |
Non-crystalline organic polymers |
| E. |
All of the above |
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Answer: Option D
Explanation:
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| 283. |
Which of the following material can withstand maximum shocks without failure? |
| A. |
White cast iron |
B. |
Malleable cast iron |
| C. |
Chilled cast iron |
D. |
Gray cast iron |
| E. |
Pig iron |
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Answer: Option B
Explanation:
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| 284. |
Which of the following is the hardest material? |
| A. |
High speed steel |
B. |
Stainless steel |
| C. |
Cemented carbide |
D. |
Gold |
| E. |
Diamond |
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Answer: Option E
Explanation:
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| 285. |
Which of the following is the ductile material? |
| A. |
Silver |
B. |
Brass |
| C. |
Stainless steel |
D. |
Zinc |
| E. |
Aluminium |
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Answer: Option A
Explanation:
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| 286. |
Which of the following has the highest malleability? |
| A. |
Cast iron |
B. |
Copper |
| C. |
Aluminium |
D. |
Lead |
| E. |
Brass |
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Answer: Option D
Explanation:
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| 287. |
Hot hardness of high speed steels increases due to the addition of |
| A. |
Tungsten |
B. |
Phosphorous |
| C. |
Chromium |
D. |
Vanadium |
| E. |
None of the above |
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Answer: Option A
Explanation:
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| 288. |
Which of the following pipe will corrode easily? |
| A. |
Stainless steel pipe |
B. |
Lead pipe |
| C. |
Copper pipe |
D. |
ERW pipe |
| E. |
GI pipe |
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Answer: Option D
Explanation:
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| 289. |
The fatigue limit of a shaft connot be increased by |
| A. |
Under stressing |
B. |
Surface decarburisation |
| C. |
Shot peening |
D. |
Nitriding of the surface |
| E. |
Cold working |
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Answer: Option B
Explanation:
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| 290. |
Which of the following metals has high tendency to get work hardened? |
Answer: Option A
Explanation:
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