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Process Control and Instrumentation

Process Control and Instrumentation
Polarograph is meant for the analysis of

Gaseous mixture
Solids
Isotopes
Miscible liquids

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Process Control and Instrumentation
Pick out the first order system from among the following.

Interacting system of two tanks in series
Non-interacting system of two tanks in series
Mercury in glass thermometer kept in boiling water
Damped vibrator

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Process Control and Instrumentation
A pyrheliometer is an instrument used for measuring the

Bright sunshine period
None of these
Diffuse radiation
Beam radiation

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Process Control and Instrumentation
Which is the most suitable instrument for measuring pressure below 3 microns?

Alphatron
Mcleoid gauge
Bourdon guage
Ionisation gauge

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Process Control and Instrumentation
Resistance of a gas in a vessel is given by (where, P = pressure, V = volume of the vessel, n = no. of moles of the gas, R = gas constant)

nRT/P
V/nRT
nRT/V
p/nRT

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Process Control and Instrumentation
Stroboscope is used for the measurement of

Frequency of light
Liquid level under pressure
Depression of freezing point
Rpm of a flywheel

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