Chemical Engineering - Chemical Engineering Basics
Exercise :: Chemical Engineering Basics - Section 26
| 6. |
In continuous casting process, graphite moulds are used with a view to providing |
| A. |
heat resisting medium. | | B. |
self lubricating qualities. | | C. |
non-wetting surfaces. | | D. |
chilling effect. |
Answer: Option B
Explanation:
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| 7. |
Energy required to compress a hot gas as compared to cold gas will be |
| A. |
more. | | B. |
less. | | C. |
same. | | D. |
more or less depending upon the nature of the gas. |
Answer: Option A
Explanation:
|
| 8. |
In the commercial production of which of the following metals, matallothermic reduction is used ? |
Answer: Option B
Explanation:
|
| 9. |
New water wells are disinfected with chlorine in the form of |
| A. |
sodium chloride | | B. |
sodium hypochlorate | | C. |
bleaching powder | | D. |
aluminium chloride |
Answer: Option C
Explanation:
|
| 10. |
In a boundary layer developed along the flow, the pressure decreases in the downstream direction. The boundary layer thickness in this case will |
| A. |
decrease gradually. | | B. |
increase gradually. | | C. |
increase rapidly. | | D. |
remain constant. |
Answer: Option B
Explanation:
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