The deflection in diaphragm (which is used as pressure sensor in pneumatic and electronic instruments) is dependent on the metal thickness, its diameter (d) and shape & number of corrugations. Its deflection is proportional to

Process Control and Instrumentation
The deflection in diaphragm (which is used as pressure sensor in pneumatic and electronic instruments) is dependent on the metal thickness, its diameter (d) and shape & number of corrugations. Its deflection is proportional to

D

D²

D³

D⁴

D

D²

D³

D⁴

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

Flow rate

Pressure

Temperature

Concentration

Flow rate

Pressure

Temperature

Concentration

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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

Current

Voltage

Light intensity

Flux density

Current

Voltage

Light intensity

Flux density

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Process Control and Instrumentation
Thermal wells are used in the temperature measurement to

Increase the sensitivity

Reduce measuring lag

Guard against corrosive and oxidising action on thermocouple materials

Increase the fidelity

Increase the sensitivity

Reduce measuring lag

Guard against corrosive and oxidising action on thermocouple materials

Increase the fidelity

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Process Control and Instrumentation
Which of the following thermometers is not suitable for distant reading upto 60 metres?

Resistance thermometer

Mercury in glass thermometer

Vapor pressure thermometer

Constant volume gas thermometer

Resistance thermometer

Mercury in glass thermometer

Vapor pressure thermometer

Constant volume gas thermometer

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Process Control and Instrumentation
Working principle of mercury in glass thermometer is based on volumetric expansion of mercury with increase in temperature. Which of the following undergoes minimum volumetric expansion for a given temperature change?

Water

Methyl alcohal

Carbon-tetrachloride

Mercury

Water

Methyl alcohal

Carbon-tetrachloride

Mercury

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Process Control and Instrumentation

Process Control and Instrumentation The deflection in diaphragm (which is used as pressure sensor in pneumatic and electronic instruments) is dependent on the metal thickness, its diameter (d) and shape & number of corrugations. Its deflection is proportional to

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

Process Control and Instrumentation Thermal wells are used in the temperature measurement to

Process Control and Instrumentation Which of the following thermometers is not suitable for distant reading upto 60 metres?

Process Control and Instrumentation Working principle of mercury in glass thermometer is based on volumetric expansion of mercury with increase in temperature. Which of the following undergoes minimum volumetric expansion for a given temperature change?

Process Control and Instrumentation
The deflection in diaphragm (which is used as pressure sensor in pneumatic and electronic instruments) is dependent on the metal thickness, its diameter (d) and shape & number of corrugations. Its deflection is proportional to

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

Process Control and Instrumentation
Thermal wells are used in the temperature measurement to

Process Control and Instrumentation
Which of the following thermometers is not suitable for distant reading upto 60 metres?

Process Control and Instrumentation
Working principle of mercury in glass thermometer is based on volumetric expansion of mercury with increase in temperature. Which of the following undergoes minimum volumetric expansion for a given temperature change?