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Process Control and Instrumentation

Process Control and Instrumentation
The inverse Laplace transform of the function f(s) = 1/S(1 + S) is

1 + e-t
1 + et
1 - et
1 - e-t

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Process Control and Instrumentation
Liquid column manometers are used for measuring the pressure __________ kgf/cm² .

< 3 (gage)
< 10 (gage)
< atmospheric
> 2(gage)

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Process Control and Instrumentation
Temperature of molten pig iron (1450°C) and molten slag (1500°C) flowing out of a blast furnace is measured by a/an

Radiation pyrometer
Chromel-alumel thermocouple
Optical pyrometer
Either B or C

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Process Control and Instrumentation
Non-metallic diaphragm used as pressure sensor in instruments is generally made of

Synthetic rubber
Thick paper
Bakelite
Teflon

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Process Control and Instrumentation
Pirani gauge is used for the measurement of

High vacuum
Liquid level at atmospheric pressure
Liquid level under pressure
Very high pressure

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Process Control and Instrumentation
Which of the following is not the triple point of water?

273°K
32°F
492°R
32°R

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