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Process Control and Instrumentation

Process Control and Instrumentation
Polarograph is meant for the analysis of

Solids
Isotopes
Miscible liquids
Gaseous mixture

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Process Control and Instrumentation
Mercury thermometer can be used to measure the temperature upto __________ °C.

750
250
350
100

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Process Control and Instrumentation
What is the ratio of output amplitude to input amplitude for a sinusoidal forcing function in a first order system?

None of these
1
< 1
>1

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Process Control and Instrumentation
Which of the following shows maximum dip effect (indicating reverse direction of temperature change)?

Bimetallic thermometer
Thermocouple
Radiation pyrometer
Mercury thermometer

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Process Control and Instrumentation
In a single tank system, the transfer function of level to inlet flow rate is

R/(TS + 1)
1/TS
L(TS + l)
R/TS

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Process Control and Instrumentation
Relationship between absorption/evolution of heat at the thermocouple junctions and the current flow in the circuit is given by __________ effect.

None of these
Peltier
Seebeck
Thomson

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