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Process Control and Instrumentation

Process Control and Instrumentation
The open loop transfer function of a control system is KR/(1 + TS) . This represents

A first order system
Dead time system
A second order system
A first order time lag

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

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

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Process Control and Instrumentation
Flapper nozzle is used in a/an __________ controller.

None of these
Hydraulic
Electronic
Pneumatic

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Process Control and Instrumentation
Instrumentation in a plant offers the advantage of

Greater operation economy
All of these
Better quality of product
Greater safety of operation

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Process Control and Instrumentation
Specific gravity of a liquid can not be measured by a/an

Anemometer
Hydrometer
Pycnometer
Specific gravity bottle

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Process Control and Instrumentation
If response of a control system is to be free of offset and oscillation, the most suitable controller is

Proportional-integral (PI) controller
Proportional-derivative(PD)controller
Proportional integral-derivative (PID) controller
Proportional controller

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