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Process Control and Instrumentation

Process Control and Instrumentation
Composition of alloys can be determined by

Refractrometer
Polarograph
Chromatograph
None of these

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Process Control and Instrumentation
For increased speed of response of an expansion pressure spring thermometer, the thermometer bulb should have a

High thermal conductivity
All of these
Large area but small mass
Small specific heat

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Process Control and Instrumentation
A typical example of a physical system with under damped characteristic is a

Thermocouple kept immersed in a liquid filled thermowell
CSTR with first order reaction
U-tube manometer
Spring loaded diaphragm valve

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Process Control and Instrumentation
Which of the following is the dynamic characteristics of an instrument?

Sensitivity
Reproducibility
Dead zone
Fidelity

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

Stress
Velocity
Weight
Strain

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Process Control and Instrumentation
__________ is an example of distributed parameter system

On-off controller
CSTR
Tubular reactor
None of these

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