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Process Control and Instrumentation

Process Control and Instrumentation
Identify an unbounded input from inputs whose transfer functions are given below

1/(S² + 1)
1/S
1/S²
1

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Process Control and Instrumentation
Compositional analysis of __________ is done using mass spectrometer.

A solid
An isotope
Natural gas
An alloy

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Process Control and Instrumentation
Which of the following thermocouples will give the highest output for the same value of hot and cold junction temperature?

All of these
Platinum-platinum + rhodium
Chromel-constantan
Iron-constantan

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Process Control and Instrumentation
Turbine flow meters are suitable for

Cryogenic flow measurements
Both B and C
Very limited flow ranges
Aerospace and in air borne applications

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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
Small specific heat
Large area but small mass
All of these

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Process Control and Instrumentation
A simple pitot tube measures the

Maximum velocity
Point velocity
Average velocity
Static pressure

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