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Process Control and Instrumentation

Process Control and Instrumentation
In Bode plot, Φ vs ω is plotted on a/an __________ graph paper.

Triangular
Log-log
Semi-log
Ordinary

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Process Control and Instrumentation
Cascade control means

On-off control
Feed forward control
One feed-back loop
More than one feed-back loop

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Process Control and Instrumentation
Relationship between absorption/evolution of heat at the thermocouple junctions and the current flow in the circuit is given by __________ effect.

None of these
Peltier
Thomson
Seebeck

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Process Control and Instrumentation
Which of the following filled system expansion thermometers has the lowest positive temperature measurement capability?

Alcohol in glass thermometer
Nitrogen in steel thermometer
Mercury in glass thermometer
Fused metal (Na or K) in steel thermometer

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Process Control and Instrumentation
Load cells are used for the measurement of

Velocity
Weight
Strain
Stress

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

Natural gas
An alloy
An isotope
A solid

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