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Process Control and Instrumentation

Process Control and Instrumentation
The term analogous to voltage in a single tank system is the

Level of liquid
Liquid volume in the tank
Heat content of the system
Flow rate

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Process Control and Instrumentation
A photo electric device in which the resistance of the metal is directly proportional to the light striking on it, is known as photo-conductive cell. Photoelectric transducers are used for the measurement of those parameters, which can be used to produce variation in

Voltage
Flux density
Current
Light intensity

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

Diffuse radiation
Bright sunshine period
None of these
Beam radiation

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Process Control and Instrumentation
Pyrometry refers to the measurement of temperature

With the mercurial thermometer upto 350°C
Directly
All of these
Which is of higher magnitude

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Process Control and Instrumentation
Which of the following relates the emf. generated in a single homogeneous wire to the temperature difference?

Thomson effect
Seebeck effect
Peltier effect
None of these

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Process Control and Instrumentation
Which of the following temperature measuring instruments need not touch the object whose temperature is being measured?

Radiation/infrared pyrometer
Filled system thermometer
Mercury in glass thermometer
Thermo electric pyrometer

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