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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

Cipolletti weir
Rectangular weir
Orifice meter
V-notch

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Process Control and Instrumentation
The amplitude ratio for the sinusoidal response of a __________ is 1.

None of these
First order system
Second order system
Transportation lag

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Process Control and Instrumentation
Flow rate of those fluids which are insensitive to changes in their density, viscosity or flow velocity profile can be best measured by a

Turbine flowmeter
Magnetic flowmeter
Pitot tube
Flow nozzle type flowmeter

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Process Control and Instrumentation
Volumetric expansion is the working principle of the __________ thermometers.

Mercury in glass
Vapor pressure
Bimetallic
Constant volume gas

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Process Control and Instrumentation
Mercury thermometer is commonly used for low temperature measruement. The freezing point and boiling point of mercury are respectively __________ °C.

- 10 and 425
- 39 and 350
- 79 and 395
- 51 and 439

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Process Control and Instrumentation
Gas chromatography is used for the measurement of

Flow rate
Pressure
Temperature
Concentration

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