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Process Control and Instrumentation

Process Control and Instrumentation
Maximum differential pressure in liquid manometer is __________ psi.

40
20
50
30

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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
A mercury barometer measures the __________ pressure.

Atmospheric
Vacuum
Gauge
Absolute

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Process Control and Instrumentation
Working principle of radiation pyrometer is based on the

Seebeck effect
Stafan-Boltzman law
Kirchoffs law
Wien's law

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Process Control and Instrumentation
Liquid column manometers are used for measuring the pressure __________ kgf/cm² .

< atmospheric
< 10 (gage)
< 3 (gage)
> 2(gage)

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Process Control and Instrumentation
For increased speed of response of an expansion pressure spring thermometer, the thermometer bulb should have a

All of these
Large area but small mass
High thermal conductivity
Small specific heat

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