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Process Control and Instrumentation

Process Control and Instrumentation
Reference points i.e., ice point and steam point in Reaumer temperature scale are respectively

- 273° & 80°
0° & 80°
32° & 80°
32° & 460°

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

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

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

> 800
< 0
> 0
< 100

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Process Control and Instrumentation
Zirconia probe is used for the measurement of

Speed of a submarine
% CO₂ in flue gas
Humidity of air
% O₂ in flue gas

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Process Control and Instrumentation
What is the Laplace transform of impulse input having magnitude 'X' ?

1/X
X
X²
1

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Process Control and Instrumentation
Platinum resistance thermometer can be used upto antimony point which is __________ °C, and is the temperature of equilibrium between solid antimony & liquid antimony at normal atmospheric pressure.

1064.43
961.93
1261.93
630.74

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