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Chemical Engineering - Process Control and Instrumentation

Exercise : Process Control and Instrumentation - Section 1
46.
The __________ of a vapor pressure thermometer is a secondary element.
pointer
Bourdon tube
bulb
none ofthese
Answer: Option
Explanation:
No answer description is available. Let's discuss.
47.
Emf developed by a thermocouple, while measuring a temperature of 600°C is about 5.5 mV. The type of thermocouple used is
chromel-alumel
iron-constantan
platinum-platinum+rhodium
either (a), (b) or (c)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
48.
Which of the following relates the absorption & evolution of heat at the junctions of a thermocouple to the current flow in the circuit?
Seebeck effect
Peltier effect
Joule heating effect
Thomson effect
Answer: Option
Explanation:
No answer description is available. Let's discuss.
49.
The second order system with the transfer function has a damping ratio of
2.0
0.5
1.0
4.0
Answer: Option
Explanation:
No answer description is available. Let's discuss.
50.
In a shell and tube heat exchanger, the flow rate of heating/cooling fluid is the __________ variable.
load
controlled
manipulated
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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