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Process Control and Instrumentation

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

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

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Process Control and Instrumentation
In a shell and tube heat exchanger, the outlet temperature of heating/cooling fluid is the __________ variable.

Controlled
Load
None of these
Manipulated

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Process Control and Instrumentation
In second order underdamped system,

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

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

Integral
None of these
Derivative
Dead

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Process Control and Instrumentation
Thermal conductivity measurement is used for the determination of

Composition of an alloy
O₂ percentage in the flue gas
CO₂ percentage in the flue gas
Specific gravity of petrofuels

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Process Control and Instrumentation
Helium gas constant volume thermometer is suitable for the measurement of a temperature of __________ °C.

> 0
< 100
> 800
< 0

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