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Process Control and Instrumentation

Process Control and Instrumentation
Flapper nozzle is used in a/an __________ controller.

Pneumatic
Electronic
None of these
Hydraulic

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Process Control and Instrumentation
Temperature measurement by optical pyrometer is done above __________ point, which is 1063°C.

Gold
Nickel
Antimony
Silver

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Process Control and Instrumentation
Volumetric expansion is the working principle of the __________ thermometers.

Constant volume gas
Vapor pressure
Mercury in glass
Bimetallic

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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

1
4
2
3

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Process Control and Instrumentation
Mercury manometer (U-tube type) exemplifies a __________ order system.

Second
First
Third
Zero

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Process Control and Instrumentation
A barometer measures the __________ pressure.

Absolute as well as gauge
Gauge
Absolute
Dynamic

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