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Process Control and Instrumentation

Process Control and Instrumentation
The unit of 'time constant' of a system is the same as that of

(time)⁻¹
Velocity
None of these
Time

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Process Control and Instrumentation
Thermistors are used in __________ devices.

Voltage measuring
Temperature compensating
Temperature measuring
Both B & C

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Process Control and Instrumentation
__________ is an example of distributed parameter system

CSTR
Tubular reactor
None of these
On-off controller

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Process Control and Instrumentation
Volumetric expansion is the working principle of the __________ thermometers.

Constant volume gas
Vapor pressure
Bimetallic
Mercury in glass

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Process Control and Instrumentation
Bourdon tube is never made of

Cast iron
Stainless steel
Monel metal
Phosphor bronze

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Process Control and Instrumentation
Which of the following is not suitable for measuring the temperature of a red hot object in the range of 800 - 1600°C?

Optical pyrometer
Radiation pyrometer
Photoelectric pyrometer
Thermocouples

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