Chemical Engineering - Process Control and Instrumentation
Exercise :: Process Control and Instrumentation - Section 1
| 41. |
The symbol for "capillary line" in instrumentation diagram is |
Answer: Option B
Explanation:
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| 42. |
__________ is undesirable in thermocouples used in industries, |
| A. |
Linear relation of emf to temperature | | B. |
Corrosion resistance | | C. |
Oxidation resistance | | D. |
Non-linear relation of emf to temperature |
Answer: Option D
Explanation:
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| 43. |
Select the correct statement from the following. |
| A. |
The frequency response of a pure capacity process is unbounded. | | B. |
The phase lag of a pure time delay system decreases with increasing frequency. | | C. |
The amplitude ratio of a pure capacity process is inversely proportional to frequency. | | D. |
The amplitude ratio of a pure time delay system increases with frequency. |
Answer: Option C
Explanation:
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| 44. |
For an input forcing function, X(t) = 2t2, the Laplace transform of this function is |
Answer: Option D
Explanation:
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| 45. |
Continuous shell temperature measurement in a liquid-liquid heat exchanger is done by a |
| A. |
thermocouple | | B. |
reistance thermometer | | C. |
mercury in glass thermometer | | D. |
vapor pressure thermometer |
Answer: Option A
Explanation:
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