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Process Control and Instrumentation

Process Control and Instrumentation
Photoelectric pyrometers are suitable in the temperature range of __________ °C.

800-1600
400-1000
400-1600
800-2500

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Process Control and Instrumentation
Thermistor, which has high temperature co-efficient of resistivity, is used as the sensing element in resistance thermometer. It is a/an

Conductor
Liquid semi-conductor
Insulator
Solid semi-conductor

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Process Control and Instrumentation
Flow rate measurement of hostile acids and alkalis can be most suitably done by a/an

Venturimeter
Orificemeter
Magnetic flow meter
Hot wire anemometer

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Process Control and Instrumentation
Which of the following instruments is not used for measuring sub-zero (<0°) temperatures?

Platinum resistance thermometer
Vapor pressure thermometer
Mercury in glass thermometer
Radiation pyrometer

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Process Control and Instrumentation
Composition of natural gas is determined by the

Mass spectrometer
Chromatograph
Haldane apparatus
Both B and C

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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.

Viscosity
All of these
Volume
Pressure

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