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Process Control and Instrumentation

Process Control and Instrumentation
Characteristic equation is the denominator of __________ loop transfer function.

Closed
Open
Both A & B Here
Neither A Nor B Here

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Process Control and Instrumentation
In second order underdamped system,

Decay ratio = (overshoot)²
Decay ratio = overshoot
Large damping co-efficient means smaller damping
Overshoot increases for increasing damping co-efficient

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Process Control and Instrumentation
Silver point temperature is __________ °C.

760.5
860.5
1060.5
960.5

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Process Control and Instrumentation
Polarograph is meant for the analysis of

Isotopes
Gaseous mixture
Solids
Miscible liquids

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Process Control and Instrumentation
A barometer measures the __________ pressure.

Dynamic
Absolute as well as gauge
Absolute
Gauge

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Process Control and Instrumentation
Which of the following filled system expansion thermometers has the lowest positive temperature measurement capability?

Alcohol in glass thermometer
Nitrogen in steel thermometer
Fused metal (Na or K) in steel thermometer
Mercury in glass thermometer

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