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Process Control and Instrumentation

Process Control and Instrumentation
Paramagnetism method is not used for the composition determination of __________ in gases.

Any of these
Oxygen
Carbon dioxide
Oxides of nitrogen

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Process Control and Instrumentation
Bode diagram are generated from output response of the system subjected to which of the following input?

Sinusoidal
Step
Ramp
Impulse

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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

-90°
-45°
-180°
45°

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Process Control and Instrumentation
Which of the following is the dynamic characteristics of an instrument?

Dead zone
Sensitivity
Reproducibility
Fidelity

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Process Control and Instrumentation
Emf developed by a thermocouple while measuring a temperature of 800°C is about 31 mV. The type of thermocouple used is

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

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Process Control and Instrumentation
__________ is the static characteristics of an instrument,

Dynamic error
Response
Tine lag
Drift

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