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

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Process Control and Instrumentation
Magnetic flowmeters are generally not used for the velocity/flow measurement of hydrocarbons due to their

High viscosity index
Low thermal conductivity
Low flash point
Low electrical conductivity

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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
Thomson
Seebeck

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Process Control and Instrumentation
Mercury thermometer is commonly used for low temperature measruement. The freezing point and boiling point of mercury are respectively __________ °C.

- 79 and 395
- 10 and 425
- 39 and 350
- 51 and 439

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Process Control and Instrumentation
The pressure sensing element of elastic type pressure gauge is never made in the form of a

Bellow
Bourdon tube
Diaphragm
Strip

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Process Control and Instrumentation
Out of the following themocouple wire insulating material, the highest temperature rating is for

Ceramic fibre
Fibre glass
Teflon
Asbestos

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MORE MCQ ON Process Control and Instrumentation

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