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Process Control and Instrumentation

Process Control and Instrumentation
A manometer measures the __________ pressure.

None of these
Gauge
Atmospheric
Absolute

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Process Control and Instrumentation
High temperature of around 2000°C of incandescent gas mantles is measured by a/an

None of these Here
Optical pyrometer
Specially designed thermocouple
Radiation pyrometer

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Process Control and Instrumentation
Dome temperature of blast furnace stove is most accurately measured by a

Radiation pyrometer
Platinum resistance thermometer
Iron-constantan thermocouple
Platinum-platinum/rhodium ther-mocuple

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Process Control and Instrumentation
Zirconia probe is used for the continuous measurment of __________ flue gases going out of the furnace.

Carbon dioxide in
Temperature of
Oxygen in
Carbon monoxide in

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Process Control and Instrumentation
Which of the following thermometers is not suitable for distant reading upto 60 metres?

Vapor pressure thermometer
Mercury in glass thermometer
Constant volume gas thermometer
Resistance thermometer

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Process Control and Instrumentation
What is the dynamic error in a critically damped second order instrument for a ramp input (AT)?

2 AT
1.5 AT
0.5 AT
√AT

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