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Process Control and Instrumentation

Process Control and Instrumentation
Measurement of pressure in ammonia reactor is done by

Pirani guage
Inclined tube manometer
U-tube manometer
Bourdon gauge

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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
2/s³
4/s³
4/s²

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Process Control and Instrumentation
An aneroid barometer measures the __________ pressure.

Vacuum
Atmospheric
Gage
Absolute

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Process Control and Instrumentation
Pressure of 0.01 psi (absolute) can be measured by __________ gauge.

None of these
Mcloid
Pirani
Ionisation

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Process Control and Instrumentation
Paramagnetism method is not used for the composition determination of __________ in gases.

Oxygen
Oxides of nitrogen
Any of these
Carbon dioxide

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Process Control and Instrumentation
The root locus plot of the roots of the characteristics equation of a closed loop system having the open loop transfer function K(s + 1)/2(2s + 1)(3s + 1) will have a definite number of loci for variation of K from 0 to ∞. The number of loci is

2
1
4
3

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