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Process Control and Instrumentation

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

4/s³
2/s²
4/s²
2/s³

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Process Control and Instrumentation
Helium gas constant volume thermometer is suitable for the measurement of a temperature of __________ °C.

> 800
< 100
< 0
> 0

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Process Control and Instrumentation
The temperature of tempering oil baths maintained at 400°C during heat treatment of steel is measured by a/an __________ thermocouple.

None of these
Platinum-platinum/rhodium
Iron-constantan
Chromel-alumel

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Process Control and Instrumentation
In an exothermic chemical reactor, the manipulated variable is the flow rate of

Product
Reactants
None of these
Coolant

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Process Control and Instrumentation
Which is the strongest paramagnetic gas?

CO₂
NO
NO₂
O₂

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Process Control and Instrumentation
The fluid used in hydraulic controller is

Oil
Water
Air
Steam

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