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Process Control and Instrumentation

Process Control and Instrumentation
Liquid flow rate in an open channel can not be measured by a/an

Orifice meter
V-notch
Cipolletti weir
Rectangular weir

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Process Control and Instrumentation
The open loop transfer function of a control system is KR/(1 + TS) . This represents

A first order time lag
A second order system
Dead time system
A first order system

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Process Control and Instrumentation
A mercury thermometer can not be used to measure the temperature below the freezing point of mercury, which is __________ °C.

-60.9
-38.9
-80.9
-11.9

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Process Control and Instrumentation
Liquid flow rate in a small channel is best measured by a/an

Weir
Venturimeter
Vane meter
Pitot tube

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Process Control and Instrumentation
Change of angle of refraction with composition comprises the working principle of a

Polarograph
Refractrometer
Polarimeter
Spectrometer

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Process Control and Instrumentation
Zirconia probe is used for the continuous measurment of __________ flue gases going out of the furnace.

Carbon dioxide in
Temperature of
Oxygen in
Carbon monoxide in

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