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Process Control and Instrumentation

Process Control and Instrumentation
Stalagmometer is used for the measurement of

Kinematic viscosity
Refractive index
Surface tension
Optical activity

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Process Control and Instrumentation
The term analogous to the electrical current in a thermal system is the

Heat flow rate
None of these
Temperature difference
Heat content in the system

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Process Control and Instrumentation
A first order system with a time constant of 1 min is subjected to frequency response analysis. At an input frequency of 1 radian/min, the phase shift is

-180°
45°
-90°
-45°

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Process Control and Instrumentation
Small furnace draught is accurately measured by an inclined tube manometer, in which the manometric liquid used most commonly is

Water
Paraffin
Ethylene glycol
Carbon tetrachloride

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Process Control and Instrumentation
Flow rate measurement of hostile acids and alkalis can be most suitably done by a/an

Venturimeter
Magnetic flow meter
Hot wire anemometer
Orificemeter

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

8
1.5
4
0.2

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