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Process Control and Instrumentation

Process Control and Instrumentation
The level of a liquid under pressure can be determined using

Diaphragm box system
Bubbler system
Differential pressure manometer
Air-trap system

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Process Control and Instrumentation
Mercury thermometer can be used to measure the temperature upto __________ °C.

750
250
100
350

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Process Control and Instrumentation
__________ temperature scale assigns 0° to the 'ice point' and 80° to the 'steam point'

Reumur
Farenhite
Rankine
Celcius

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Process Control and Instrumentation
A mercury thermometer can not be used to measure the temperature below the freezing point of mercury, which is __________ °C.

-60.9
-80.9
-11.9
-38.9

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Process Control and Instrumentation
The amplitude ratio for the sinusoidal response of __________ is < 1.

Transportation lag
Second order system
First order system
None of these

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Process Control and Instrumentation
Dead zone is the

None of these
Same as transportation lag
Same as time constant
Maximum change in the variable that does not change the reading of the instrument

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