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

D³

D⁴

D²

D

D³

D⁴

D²

D

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

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

Non-interacting system of two tanks in series

Interacting system of two tanks in series

Mercury in glass thermometer kept in boiling water

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Process Control and Instrumentation
Time constant is the

Same as dead time

Time taken by the controlled variable to reach 63.2% of its full change

Time required by the measured variable to reach 63.2% of its ultimate change

Same as transportation lag

Same as dead time

Time taken by the controlled variable to reach 63.2% of its full change

Time required by the measured variable to reach 63.2% of its ultimate change

Same as transportation lag

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Process Control and Instrumentation
Emf developed by a thermocouple while measuring a temperature of 800°C is about 31 mV. The type of thermocouple used is

None of these

Platinum-platinum+rhodium

Iron-constantan

Chromel-alumel

None of these

Platinum-platinum+rhodium

Iron-constantan

Chromel-alumel

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Process Control and Instrumentation
The transfer function of a pure dead time system with dead time τd is

Τds + 1

Eτds

E-τds

1/(τds + 1)

Τds + 1

Eτds

E-τds

1/(τds + 1)

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Process Control and Instrumentation
Accurate temperature measurement performance of a radiation pyrometer can not be affected, if the

Object is transparent

Object has varying emissivity

Object and surrounding are at almost the same temperature

Enhancement or attentuation of redia-tion occurs in the sighting path

Object is transparent

Object has varying emissivity

Object and surrounding are at almost the same temperature

Enhancement or attentuation of redia-tion occurs in the sighting path

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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 Pick out the first order system from among the following.

Process Control and Instrumentation Time constant is the

Process Control and Instrumentation Emf developed by a thermocouple while measuring a temperature of 800°C is about 31 mV. The type of thermocouple used is

Process Control and Instrumentation The transfer function of a pure dead time system with dead time τd is

Process Control and Instrumentation Accurate temperature measurement performance of a radiation pyrometer can not be affected, if the

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
Pick out the first order system from among the following.

Process Control and Instrumentation
Time constant is the

Process Control and Instrumentation
Emf developed by a thermocouple while measuring a temperature of 800°C is about 31 mV. The type of thermocouple used is

Process Control and Instrumentation
The transfer function of a pure dead time system with dead time τd is

Process Control and Instrumentation
Accurate temperature measurement performance of a radiation pyrometer can not be affected, if the