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Process Control and Instrumentation

Process Control and Instrumentation
The inverse Laplace transform of the function f(s) = 1/S(1 + S) is

1 + e-t
1 - e-t
1 + et
1 - et

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Process Control and Instrumentation
Strain gage pressure transducers are used to measure __________ pressures.

Absolute as well as differential
Gage as well as vacuum
Neither A nor B
Both A & B Here

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Process Control and Instrumentation
Which of the following is not a mechanical pressure sensing element?

Diaphragm
Bourdon tube
U-tube
Bellows

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Process Control and Instrumentation
Radiation thermometer can not measure the temperature

Of an object without coming in contact with it
Of liquid oxygen
Of moving objects at high temperature
Inside a pressure vessel

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Process Control and Instrumentation
Thermal conductivity measurement is used for the determination of

CO₂ percentage in the flue gas
Specific gravity of petrofuels
O₂ percentage in the flue gas
Composition of an alloy

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Process Control and Instrumentation
Temperature of __________ can not be measured by an optical or radiation pyrometer.

Hot blast (air) from stoves
Molten slag flowing out of blast furnace
Combustion space in boilers
Rotary limestone calcination kiln

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