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

D⁴

D³

D

D²

D⁴

D³

D

D²

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Process Control and Instrumentation
Which of the following is not a speed measuring instrument?

Psychrometer

All of these

Tachometer

Stroboscope

Psychrometer

All of these

Tachometer

Stroboscope

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Process Control and Instrumentation
pH meter has

One cell

No cell

Three cells

Two cells

One cell

No cell

Three cells

Two cells

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Process Control and Instrumentation
Phase lag of the frequency response of a second order system to a sinusoidal forcing function

Is 90° at the most

Is 120°

Is 30°

Approaches 180° asymptotically

Is 90° at the most

Is 120°

Is 30°

Approaches 180° asymptotically

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Process Control and Instrumentation
Which of the following thermocouple materials does not contain nickel?

Alumel

None of these

Chromel

Constantan

Alumel

None of these

Chromel

Constantan

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Process Control and Instrumentation
Working principle of bimetallic thermometers is difference in linear co-efficient of thermal expansion of two strips of different metals welded together. Which of the following has the maximum thermal co-efficient of linear expansion?

Chromel

Nickel

Brass

Invar

Chromel

Nickel

Brass

Invar

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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 Which of the following is not a speed measuring instrument?

Process Control and Instrumentation pH meter has

Process Control and Instrumentation Phase lag of the frequency response of a second order system to a sinusoidal forcing function

Process Control and Instrumentation Which of the following thermocouple materials does not contain nickel?

Process Control and Instrumentation Working principle of bimetallic thermometers is difference in linear co-efficient of thermal expansion of two strips of different metals welded together. Which of the following has the maximum thermal co-efficient of linear expansion?

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
Which of the following is not a speed measuring instrument?

Process Control and Instrumentation
pH meter has

Process Control and Instrumentation
Phase lag of the frequency response of a second order system to a sinusoidal forcing function

Process Control and Instrumentation
Which of the following thermocouple materials does not contain nickel?

Process Control and Instrumentation
Working principle of bimetallic thermometers is difference in linear co-efficient of thermal expansion of two strips of different metals welded together. Which of the following has the maximum thermal co-efficient of linear expansion?