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Process Control and Instrumentation

Process Control and Instrumentation
A barometer measures the __________ pressure.

Absolute as well as gauge
Dynamic
Gauge
Absolute

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Process Control and Instrumentation
Typical specifications for design stipulates the gain margin and phase margin to be respectively

< 1.7 and < 30°
> 1.7 and < 30°
< 1.7 and > 30°
> 1.7 and > 30°

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Process Control and Instrumentation
Measurement of pressure in ammonia reactor is done by

Bourdon gauge
U-tube manometer
Inclined tube manometer
Pirani guage

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Process Control and Instrumentation
Helium gas constant volume thermometer is suitable for the measurement of a temperature of __________ °C.

> 800
< 0
> 0
< 100

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Process Control and Instrumentation
Bourdon tube is never made of

Cast iron
Phosphor bronze
Monel metal
Stainless steel

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

On-off controller
None of these
CSTR
Tubular reactor

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