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Process Control and Instrumentation

Process Control and Instrumentation
An amplitude ratio of 0.1 corresponds to __________ decibels.

-10
-20
10
20

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Process Control and Instrumentation
Flapper nozzle is used in a/an __________ controller.

Pneumatic
Electronic
None of these
Hydraulic

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Process Control and Instrumentation
Which of the following is not a second order instrument?

Mercury in glass thermometer with covering
Bare mercury in glass thermometer
Pressure gauge with one bellow, two tubes and a tank
None of these

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Process Control and Instrumentation
Which of the following is not a variable area flow meter?

Rotameter
Piston type meter
Orifice and tapered plug meter
Magnetic flow meter

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Process Control and Instrumentation
A bolometer is

Neither A nor B Here
Used for the measurement of thermal radiation
An element which senses optical input and delivers thermal output
Both A & B Here

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Process Control and Instrumentation
A manometer measures the __________ pressure.

Absolute
Atmospheric
Gauge
None of these

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