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

D

D³

D²

D⁴

D

D³

D²

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Process Control and Instrumentation
According to Bode stability criterian, a system is unstable, if the open loop frequency response exhibits an amplitude ratio exceeding unity at frequency for which phase lag is

90°

0°

45°

180°

90°

0°

45°

180°

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Process Control and Instrumentation
Use of I-control along with P-control facilitates

None of these

Elimination of offset

Reduction of stability time

Reduction of offset

None of these

Elimination of offset

Reduction of stability time

Reduction of offset

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Process Control and Instrumentation
Which of the following is not a differential pressure flow meter?

Venturimeter

Rotameter

Orificemeter

Flow nozzle

Venturimeter

Rotameter

Orificemeter

Flow nozzle

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Process Control and Instrumentation
Relationship between absorption/evolution of heat at the thermocouple junctions and the current flow in the circuit is given by __________ effect.

Peltier

None of these

Seebeck

Thomson

Peltier

None of these

Seebeck

Thomson

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Process Control and Instrumentation
Compositional analysis of __________ is done using mass spectrometer.

Natural gas

An isotope

An alloy

A solid

Natural gas

An isotope

An alloy

A solid

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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 According to Bode stability criterian, a system is unstable, if the open loop frequency response exhibits an amplitude ratio exceeding unity at frequency for which phase lag is

Process Control and Instrumentation Use of I-control along with P-control facilitates

Process Control and Instrumentation Which of the following is not a differential pressure flow meter?

Process Control and Instrumentation Relationship between absorption/evolution of heat at the thermocouple junctions and the current flow in the circuit is given by __________ effect.

Process Control and Instrumentation Compositional analysis of __________ is done using mass spectrometer.

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
According to Bode stability criterian, a system is unstable, if the open loop frequency response exhibits an amplitude ratio exceeding unity at frequency for which phase lag is

Process Control and Instrumentation
Use of I-control along with P-control facilitates

Process Control and Instrumentation
Which of the following is not a differential pressure flow meter?

Process Control and Instrumentation
Relationship between absorption/evolution of heat at the thermocouple junctions and the current flow in the circuit is given by __________ effect.

Process Control and Instrumentation
Compositional analysis of __________ is done using mass spectrometer.