Chemical Engineering - Chemical Engineering Basics
Exercise :: Chemical Engineering Basics - Section 16
| 6. |
A boy weighing 110lb climbs up a 50 ft high vertical destination in 100 seconds. Horse power of the boy is __________ hp. |
Answer: Option A
Explanation:
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| 7. |
Endurance is a measure of fatigue limit of a metal. Fatigue crack in nitrided machine parts originates |
| A. |
at the surface. | | B. |
within the core. | | C. |
just below the surface. | | D. |
anywhere on the surface. |
Answer: Option B
Explanation:
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| 8. |
Carbon percentage in high speed steel tool material is 0.6 to 1.0. The hardness of carbon tool steels is increased, when it is alloyed with |
| A. |
vanadium & chromium | | B. |
silicon | | C. |
tungsten | | D. |
manganese |
Answer: Option A
Explanation:
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| 9. |
Draft allowance given to patterns is for |
| A. |
compensating the liquid state shrinkage. | | B. |
easy removal of pattern from the mold cavity. | | C. |
providing support for the core placement. | | D. |
compensating the solidification shrinkage. |
Answer: Option B
Explanation:
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| 10. |
Which of the following welding processes employs the highest welding temperature ? |
| A. |
Arc welding | | B. |
Gas welding | | C. |
Thermit welding | | D. |
Resistance welding |
Answer: Option D
Explanation:
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