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Process Control and Instrumentation

Process Control and Instrumentation
Strain gage pressure transducers are used to measure __________ pressures.

Neither A nor B
Both A & B Here
Gage as well as vacuum
Absolute as well as differential

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Process Control and Instrumentation
Dilatometer is used to measure

Stress
Deflection
Strain
Contraction/expansion due to changes in temperature

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Process Control and Instrumentation
Magnetic flowmeters are generally not used for the velocity/flow measurement of hydrocarbons due to their

Low flash point
High viscosity index
Low electrical conductivity
Low thermal conductivity

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Process Control and Instrumentation
Process degree of freedom indicates __________ number of controllers to be used.

The maximum
Both maximum and the minimum
The minimum
Nothing about the

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Process Control and Instrumentation
Thermistors are made of

Iron-copper alloys
Ultra pure metals
Metal oxides
Nickel-chromium alloys

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

RC
R - C
1/RC
R + C

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