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Process Control and Instrumentation

Process Control and Instrumentation
The __________ of a vapor pressure thermometer is a primary element.

Pointer
None of these
Bourdon tube
Bulb

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Process Control and Instrumentation
Which of the following shows maximum dip effect (indicating reverse direction of temperature change)?

Bimetallic thermometer
Radiation pyrometer
Mercury thermometer
Thermocouple

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Process Control and Instrumentation
Composition of alloys can be determined by

Chromatograph
Refractrometer
None of these
Polarograph

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Process Control and Instrumentation
Dead zone is the

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

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Process Control and Instrumentation
In a single tank system, the transfer function of __________ to inlet flow rate is 1/TS+1.

Neither A nor B Here
Outlet flow rate
Level
Both A & B Here

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Process Control and Instrumentation
What is the Laplace transform of sin t ?

1/(s² + 1)
S/(s² - 1)
1/(s² - 1)
S/(s² + 1)

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