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Process Control and Instrumentation

Process Control and Instrumentation
Nickel percentage in invar which is an iron-nickel alloy, and is used as a thermocouple material is

54
36
12
68

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Process Control and Instrumentation
Dilute wine was used as a thermometric liquid initially to develop temperature scale. First emperical temperature scale developed was the __________ scale.

Reaumer
Fahrenheit
Kelvin
Centigrade

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Process Control and Instrumentation
Reset rate is the another term used for __________ time.

None of these
Dead
Derivative
Integral

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Process Control and Instrumentation
The offset introduced by proportional controller with gain Kc in response of first order system can be reduced by

Introducing integral control
None of these
Introducing derivative control
Reducing value of Kc

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Process Control and Instrumentation
Bode diagram is a plot of

None of these
Log (AR) vs. log (f) and (Φ) vs. log (f)
Log (AR) vs. f and log Φ vs.f
AR vs. log (f) and Φ vs. log (f)

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

None ofthese
Pointer
Bulb
Bourdon tube

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