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Process Control and Instrumentation

Process Control and Instrumentation
The __________ of the fluid contained in the temperature sensing element (i.e., bulb) of filled system thermometers changes with change in temperature.

All of these
Viscosity
Volume
Pressure

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

750
350
250
100

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Process Control and Instrumentation
Which of the following is a desirable characteristic of an instrument?

Poor reproducibility
High drift
High fidelity
High measuring lag

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Process Control and Instrumentation
Dilatometer is used to measure

Deflection
Contraction/expansion due to changes in temperature
Stress
Strain

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Process Control and Instrumentation
Which of the following is not a variable area flow meter?

Rotameter
Piston type meter
Magnetic flow meter
Orifice and tapered plug meter

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Process Control and Instrumentation
Which of the following shows maximum dip effect (indicating reverse direction of temperature change)?

Mercury thermometer
Radiation pyrometer
Thermocouple
Bimetallic thermometer

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