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Process Control and Instrumentation

Process Control and Instrumentation
In an exothermic chemical reactor, the manipulated variable is the flow rate of

None of these
Reactants
Coolant
Product

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Process Control and Instrumentation
Range of hydrogen gas constant volume themometer is __________ °C.

-10 to 20
400 - 1000
100 - 500
0 to 100

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Process Control and Instrumentation
Pirani gauge is used for the measurement of

High vacuum
Liquid level at atmospheric pressure
Very high pressure
Liquid level under pressure

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Process Control and Instrumentation
Which of the following instruments is not used for measuring sub-zero (<0°) temperatures?

Radiation pyrometer
Mercury in glass thermometer
Platinum resistance thermometer
Vapor pressure thermometer

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Process Control and Instrumentation
Nichol's chart deals with

Closed loop values vs. open loop values
R. vs. phase lag of first order
Frequency response values of controllers
R. vs. phase lag of second order

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Process Control and Instrumentation
The fluid used in hydraulic controller is

Oil
Air
Steam
Water

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MORE MCQ ON Process Control and Instrumentation

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