Chemical Engineering - Chemical Engineering Basics
Exercise :: Chemical Engineering Basics - Section 3
| 21. |
__________ iron is produced by the annealing of white cast iron. |
Answer: Option A
Explanation:
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| 22. |
The mechanism which changes the value of manipulated variable in response to the output signal from the control unit is called the |
| A. |
final control element. | | B. |
on-off control. | | C. |
floating control action. | | D. |
none of these. |
Answer: Option A
Explanation:
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| 23. |
Fahrenheit and Centigrade scales have the same readings at |
Answer: Option B
Explanation:
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| 24. |
Which of the following low melting alloy containing bismuth and lead is used for electric fuse ? |
| A. |
Wood's metal | | B. |
Babbit metal | | C. |
Monel metal | | D. |
Duralumin |
Answer: Option A
Explanation:
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| 25. |
Water-tube boiler is the one, in which |
| A. |
water passes through tubes and flue gases around it. | | B. |
tube carrying hot flue gases are immersed in a pool of water. | | C. |
tubes are placed in vertical position. | | D. |
none of these. |
Answer: Option A
Explanation:
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