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Process Control and Instrumentation

Process Control and Instrumentation
Turbine flow meters are suitable for

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

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Process Control and Instrumentation
Response of a linear control system for a change in set point is called

Servo problem
Regulator problem
Frequency response
Transient response

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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
Large area but small mass
All of these
Small specific heat

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Process Control and Instrumentation
Flow rate of those fluids which are insensitive to changes in their density, viscosity or flow velocity profile can be best measured by a

Pitot tube
Turbine flowmeter
Magnetic flowmeter
Flow nozzle type flowmeter

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Process Control and Instrumentation
Continuous measurement of moisture content of paper in paper industry is done by measuring the

Magnetic susceptibility
Thermal conductivity through the paper
None of these
Electrical resistance through the paper

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Process Control and Instrumentation
Cascade control means

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

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MORE MCQ ON Process Control and Instrumentation

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