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Process Control and Instrumentation

Process Control and Instrumentation
Very low pressure is expressed in microns(μ), which is equal to __________ mm of Hg coloumn (absolute) at 0°C.

0.1
0.0001
0.001
0.01

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Process Control and Instrumentation
Compositional analysis of __________ is done using mass spectrometer.

Natural gas
A solid
An isotope
An alloy

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Process Control and Instrumentation
Which of the following thermocouples has the least temperature measurement range?

Platinum-platinum/rhodium
Copper-constantan
Chromel-alumel
Iron-constantan

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Process Control and Instrumentation
Bourdon tube is never made of

Monel metal
Cast iron
Stainless steel
Phosphor bronze

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Process Control and Instrumentation
Bode diagram is a plot of

AR vs. log (f) and Φ vs. log (f)
Log (AR) vs. f and log Φ vs.f
None of these
Log (AR) vs. log (f) and (Φ) vs. log (f)

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Process Control and Instrumentation
The initial value (t=0) of the unit step response of the transfer function [(s + 1)/(2s + 1)] is

2
1
43832

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