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Process Control and Instrumentation

Process Control and Instrumentation
A mercury barometer measures the __________ pressure.

Vacuum
Gauge
Absolute
Atmospheric

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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
Hot wire anemometer is used for the measurement of

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

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Process Control and Instrumentation
Identify an unbounded input from inputs whose transfer functions are given below

1/S²
1
1/(S² + 1)
1/S

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Process Control and Instrumentation
Stabilising time for the controllers is the time required for the response to reach __________ percent of its ultimate value.

100
87.5
63.2
95

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

None of these
Bulb
Pointer
Bourdon tube

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