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Chemical Engineering - Process Control and Instrumentation

Exercise : Process Control and Instrumentation - Section 6
26.
Sub-zero temperature (< 0°C) can be measured by a constant volume gas thermometer employing
helium
nitrogen
hydrogen
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
27.
__________ is an example of distributed parameter system
Tubular reactor
CSTR
On-off controller
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
28.
Which of the following is not classified as a thermo electric pyrometer ?
Resistance thermometer.
Thermocouple.
Optical pyrometer (disappearing filament type)
Radiation pyrometer
Answer: Option
Explanation:
No answer description is available. Let's discuss.
29.
Maximum differential pressure in liquid manometer is __________ psi.
20
30
40
50
Answer: Option
Explanation:
No answer description is available. Let's discuss.
30.
Phase margin is equal to
180° - phase lag
phase lag - 180°
phase lag + 180°
phase lag + 90°
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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