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Process Control and Instrumentation

Process Control and Instrumentation
Paramagnetism method is not used for the composition determination of __________ in gases.

Oxides of nitrogen
Any of these
Carbon dioxide
Oxygen

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Process Control and Instrumentation
Compositional analysis of __________ is done using mass spectrometer.

An isotope
A solid
An alloy
Natural gas

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Process Control and Instrumentation
The transfer function of a process is 1/(16s² + 8s + 4). If a step change is introduced into the system, then the response will be

Under damped
None of these
Critically damped
Over damped

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Process Control and Instrumentation
Small furnace draught is accurately measured by an inclined tube manometer, in which the manometric liquid used most commonly is

Water
Carbon tetrachloride
Paraffin
Ethylene glycol

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Process Control and Instrumentation
Phase margin is equal to

Phase lag - 180°
180° - phase lag
Phase lag + 180°
Phase lag + 90°

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Process Control and Instrumentation
Continuous shell temperature measurement in a liquid-liquid heat exchanger is done by a

Mercury in glass thermometer
Thermocouple
Vapor pressure thermometer
Reistance thermometer

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