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Process Control and Instrumentation

Process Control and Instrumentation
Maximum differential pressure in liquid manometer is __________ psi.

50
30
20
40

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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
3
4

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Process Control and Instrumentation
Flow rate of a river is measured by a/an

Vane meter
Pitot tube
Open weir
Kennison nozzle

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Process Control and Instrumentation
Dead zone in an instrument must be less than __________ percent of the scale.

0.2
4
1.5
8

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Process Control and Instrumentation
__________ is an example of distributed parameter system

Tubular reactor
On-off controller
CSTR
None of these

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Process Control and Instrumentation
The __________ of the fluid contained in the temperature sensing element (i.e., bulb) of filled system thermometers changes with change in temperature.

Volume
Viscosity
Pressure
All of these

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