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Process Control and Instrumentation

Process Control and Instrumentation
A non-linear system will have __________ steady state values.

Three
One
Two
More than one

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Process Control and Instrumentation
Dead zone in an instrument must be less than __________ percent of the scale.

0.2
8
4
1.5

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Process Control and Instrumentation
Bimetal strips are not used in

Relays for opening & closing of electrical circuits
Bimetallic thermometers
Thermostats
Thermocouples

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Process Control and Instrumentation
The time constant of a first order process with resistance R and capacitance C is

1/RC
RC
R + C
R - C

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Process Control and Instrumentation
Stroboscope is used for the measurement of

Rpm of a flywheel
Frequency of light
Depression of freezing point
Liquid level under pressure

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

Oxides of nitrogen
Carbon dioxide
Any of these
Oxygen

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