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Process Control and Instrumentation

Process Control and Instrumentation
Continuous measurement of moisture in paper is done by

Hair-hygrometer
High resistance Wheatstone's bridge circuit
Weighing
Sling psychrometer

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Process Control and Instrumentation
The initial value (t=0) of the unit step response of the transfer function [(s + 1)/(2s + 1)] is

1
43832
2

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Process Control and Instrumentation
Bourdon gauges are used for measuring pressure (kg/cm² )

< atmospheric
> 10 (absolute)
> 2 (gauge)
< 2 (gauge)

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Process Control and Instrumentation
Meleoid gauge measures the __________ pressure.

Positive
Sub-atmospheric
Atmospheric
Very high

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Process Control and Instrumentation
Bimetal strips are not used in

Relays for opening & closing of electrical circuits
Bimetallic thermometers
Thermocouples
Thermostats

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Process Control and Instrumentation
Response of a system to a sinusoidal input is called __________ response.

Unit step
Impluse
None of these
Frequency

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