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Process Control and Instrumentation

Process Control and Instrumentation
Compositional analysis of __________ is done using mass spectrometer.

Natural gas
An isotope
A solid
An alloy

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

On-off controller
CSTR
Tubular reactor
None of these

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Process Control and Instrumentation
Stabilising time for the controllers is the time required for the response to reach __________ percent of its ultimate value.

87.5
63.2
95
100

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Process Control and Instrumentation
Liquid flow rate in a small channel is best measured by a/an

Venturimeter
Weir
Pitot tube
Vane meter

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Process Control and Instrumentation
Specific conductance is defined as the reciprocal of resistance in ohms of 1c.c. of liquid at a specified temperature. Its value for distilled water is about __________ micro mho/cm³.

100
1
10
50

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

4/s²
4/s³
2/s²
2/s³

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