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Process Control and Instrumentation

Process Control and Instrumentation
Nitrogen gas constant volume thermometer is suitable for measuring a temperature of __________ °C.

< 0
> 100
0-100
> 50

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Process Control and Instrumentation
In second order underdamped system,

Decay ratio = overshoot
Overshoot increases for increasing damping co-efficient
Decay ratio = (overshoot)²
Large damping co-efficient means smaller damping

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Process Control and Instrumentation
__________ thermometer can not measure sub-zero (< 0° C) temperature,

Mercury in glass
Vapor pressure
Bimetallic
Resistance

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Process Control and Instrumentation
Hot wire anemometer is used for the measurement of

Very high temperature
Flow rates of fluids
Flow rates of granular solids
Thermal conductivity of gases

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Process Control and Instrumentation
The __________ of a vapor pressure thermometer is a functioning element.

Bourdon tube
Bulb
None of these
Pointer

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

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

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