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

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Process Control and Instrumentation
Load cells are used for the measurement of

Velocity
Strain
Stress
Weight

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Process Control and Instrumentation
Cascade control means

One feed-back loop
Feed forward control
On-off control
More than one feed-back loop

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

Vacuum
Gauge
Atmospheric
Absolute

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Process Control and Instrumentation
Reset rate is the another term used for __________ time.

Integral
None of these
Dead
Derivative

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Process Control and Instrumentation
Strain gage uses an electrical conductor wire, which when elastically stretched increases in length and reduces in diameter. Both these dimensional changes result in __________ in the electrical resistance of the wire.

Increase
No change
Decrease
Exponential decrease

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