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Process Control and Instrumentation

Process Control and Instrumentation
Meleoid gauge measures the __________ pressure.

Very high
Atmospheric
Sub-atmospheric
Positive

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Process Control and Instrumentation
What is the dynamic error in a critically damped second order instrument for a ramp input (AT)?

2 AT
√AT
0.5 AT
1.5 AT

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Process Control and Instrumentation
Thermistor, which has high temperature co-efficient of resistivity, is used as the sensing element in resistance thermometer. It is a/an

Insulator
Conductor
Solid semi-conductor
Liquid semi-conductor

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Process Control and Instrumentation
The temperature range for which copper resistance thermometer can be used is __________ °C

500 to 900
0 to 150
-200 to 150
350 to 750

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

Eτds
Τds + 1
1/(τds + 1)
E-τds

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Process Control and Instrumentation
Dead zone is the

None of these
Same as transportation lag
Maximum change in the variable that does not change the reading of the instrument
Same as time constant

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