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Chemical Engineering - Process Control and Instrumentation

Exercise : Process Control and Instrumentation - Section 4
21.
A typical example of a physical system with under damped characteristic is a
U-tube manometer.
spring loaded diaphragm valve.
CSTR with first order reaction.
thermocouple kept immersed in a liquid filled thermowell.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
22.
An aneroid barometer measures the __________ pressure.
atmospheric
absolute
vacuum
gage
Answer: Option
Explanation:
No answer description is available. Let's discuss.
23.
A bolometer is
used for the measurement of thermal radiation.
an element which senses optical input and delivers thermal output.
both (a) & (b).
neither (a) nor (b).
Answer: Option
Explanation:
No answer description is available. Let's discuss.
24.
Thermal wells are used in the temperature measurement to
guard against corrosive and oxidising action on thermocouple materials
reduce measuring lag.
increase the fidelity.
increase the sensitivity.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
25.
The offset introduced by proportional controller with gain Kcin response of first order system can be reduced by
reducing value of Kc.
introducing integral control.
introducing derivative control.
none of the above.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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