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Process Control and Instrumentation

Process Control and Instrumentation
Flame photometry is used for the determination of compositional analysis of

Alkali metals
Isotopes
Solids
Natural gas

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Process Control and Instrumentation
For an input forcing function, X(t) = 2t², the Laplace transform of this function is

2/s²
4/s²
4/s³
2/s³

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Process Control and Instrumentation
Gain margin is equal to the

Gain in P-I controller
Reciprocal of amplitude ratio
Gain in P controller
Amplitude ratio

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Process Control and Instrumentation
Which of the following is never used as an element of industrial resistance thermometer?

Nickel
Copper
Lead
30% iron + 70% nickel

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Process Control and Instrumentation
Nitrogen gas constant volume thermometer is suitable for measuring a temperature of __________ °C.

0-100
> 100
< 0
> 50

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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
Both A & B Here
Outlet flow rate
Level

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