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Chemical Engineering - Process Control and Instrumentation

Exercise : Process Control and Instrumentation - Section 3
26.
Which of the systems having the following transfer function is stable ?
Answer: Option
Explanation:
No answer description is available. Let's discuss.
27.
The calibration data of a thermocouple with its cold junction at 0°C are given below.

The hot junction of the thermocouple is placed in a bath at 80°C, while its cold junction is at 20°C. What is the emf of thermocouple ?
3.26 mv
0.80 mv
2.46 mv
2.43 mv
Answer: Option
Explanation:
No answer description is available. Let's discuss.
28.
A mercury barometer measures the __________ pressure.
atmospheric
gauge
vacuum
absolute
Answer: Option
Explanation:
No answer description is available. Let's discuss.
29.
Positioning controllers are used for
low loads
temperature changes
high loads
flow rate changes
Answer: Option
Explanation:
No answer description is available. Let's discuss.
30.
The amplitude ratio for the sinusoidal response of a __________ is 1.
first order system
second order system
transportation lag
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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