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
Emf generated in a thermocouple depends on the temperature

Of hot junction only

Difference between cold junction and atmospheric temperature

Of cold junction only

Difference between hot and cold junctions

Of hot junction only

Difference between cold junction and atmospheric temperature

Of cold junction only

Difference between hot and cold junctions

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Process Control and Instrumentation
Pick out the first order system from among the following.

Non-interacting system of two tanks in series

Interacting system of two tanks in series

Mercury in glass thermometer kept in boiling water

Damped vibrator

Non-interacting system of two tanks in series

Interacting system of two tanks in series

Mercury in glass thermometer kept in boiling water

Damped vibrator

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Process Control and Instrumentation
Temperature measurement range of iron-constantan thermocouple is 0 to 870°C. It can be used to measure sub zero temperature, because at lower temperature

Embrittlement of iron occurs

Rusting of iron takes place

Both B and C Here

Emf produced is very low of the order of microvolt

Embrittlement of iron occurs

Rusting of iron takes place

Both B and C Here

Emf produced is very low of the order of microvolt

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Process Control and Instrumentation
Liquid discharge from a tank or reservoir can not be measured by

Orificemeters

Notches

Weirs

Mouthpieces

Orificemeters

Notches

Weirs

Mouthpieces

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Process Control and Instrumentation
Which of the following thermocouples is incapable of measuring sub-zero (i.e., < 0°C) temperature?

Platinum-platinum + rhodium

Iron-constantan

Chromel-alumel

Copper-constantan

Platinum-platinum + rhodium

Iron-constantan

Chromel-alumel

Copper-constantan

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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 Emf generated in a thermocouple depends on the temperature

Process Control and Instrumentation Pick out the first order system from among the following.

Process Control and Instrumentation Temperature measurement range of iron-constantan thermocouple is 0 to 870°C. It can be used to measure sub zero temperature, because at lower temperature

Process Control and Instrumentation Liquid discharge from a tank or reservoir can not be measured by

Process Control and Instrumentation Which of the following thermocouples is incapable of measuring sub-zero (i.e., < 0°C) temperature?

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
Emf generated in a thermocouple depends on the temperature

Process Control and Instrumentation
Pick out the first order system from among the following.

Process Control and Instrumentation
Temperature measurement range of iron-constantan thermocouple is 0 to 870°C. It can be used to measure sub zero temperature, because at lower temperature

Process Control and Instrumentation
Liquid discharge from a tank or reservoir can not be measured by

Process Control and Instrumentation
Which of the following thermocouples is incapable of measuring sub-zero (i.e., < 0°C) temperature?