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Process Control and Instrumentation

Process Control and Instrumentation
In a single tank system, the transfer function of __________ to inlet flow rate is 1/TS+1.

Outlet flow rate
Level
Both A & B Here
Neither A nor B Here

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

None of these
Reactants
Coolant
Product

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Process Control and Instrumentation
A mercury barometer measures the __________ pressure.

Absolute
Atmospheric
Vacuum
Gauge

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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.

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

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Process Control and Instrumentation
Liquid discharge from a tank or reservoir can not be measured by

Weirs
Notches
Mouthpieces
Orificemeters

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Process Control and Instrumentation
Which of the following relates the absorption & evolution of heat at the junctions of a thermocouple to the current flow in the circuit?

Thomson effect
Seebeck effect
Peltier effect
Joule heating effect

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