Chemical Engineering - Chemical Engineering Basics
Exercise :: Chemical Engineering Basics - Section 26
| 16. |
When a tuning fork vibrates, the waves produced in the fork are |
| A. |
stationary | | B. |
longitudinal | | C. |
progressive | | D. |
transverse |
Answer: Option B
Explanation:
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| 17. |
Fatigue limit of a material should not be increased by |
| A. |
shot peening | | B. |
surface decarburisation | | C. |
understressing | | D. |
cold working |
Answer: Option B
Explanation:
|
| 18. |
For a fixed cross-sectional area, the most economical channel section has maximum |
| A. |
wetted perimeter. | | B. |
fluid discharge rate. | | C. |
fluid velocity. | | D. |
depth of flowing fluid. |
Answer: Option B
Explanation:
|
| 19. |
Pellets are not as popular a burden as sinter in the iron blast furnace, because of their |
| A. |
shape. | | B. |
swelling tendency. | | C. |
poor reducibility. | | D. |
low mechanical strength. |
Answer: Option B
Explanation:
|
| 20. |
A form of stress corrosion failure termed as 'season cracking' is generally observed in |
| A. |
thermosetting polymers. | | B. |
high carbon steels. | | C. |
brasses. | | D. |
borosilicate glasses. |
Answer: Option C
Explanation:
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