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Process Control and Instrumentation

Process Control and Instrumentation
Zirconia probe is used for the continuous measurment of __________ flue gases going out of the furnace.

Temperature of
Carbon monoxide in
Oxygen in
Carbon dioxide in

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Process Control and Instrumentation
Continuous measurement of moisture content of paper in paper industry is done by measuring the

Electrical resistance through the paper
None of these
Thermal conductivity through the paper
Magnetic susceptibility

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Process Control and Instrumentation
Stroboscope is used for the measurement of

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

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Process Control and Instrumentation
Which of the following is not a second order instrument?

None of these
Pressure gauge with one bellow, two tubes and a tank
Bare mercury in glass thermometer
Mercury in glass thermometer with covering

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

Thermocouple
Radiation pyrometer
Mercury thermometer
Bimetallic thermometer

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Process Control and Instrumentation
Minute depression of freezing point of a liquid solvent on addition of a solid solute can be best measured by a

Beckman thermometer
Mercury thermometer
Bimetallic thermometer
Dilatometer

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