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Process Control and Instrumentation

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

Temperature of
Carbon dioxide in
Oxygen in
Carbon monoxide in

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Process Control and Instrumentation
Liquid flow rate in an open channel can not be measured by a/an

Cipolletti weir
Orifice meter
V-notch
Rectangular weir

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Process Control and Instrumentation
The second order system with the transfer function 4/(S² + 2S + 4) has a damping ratio of

2.0
0.5
4.0
1.0

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Process Control and Instrumentation
What is the Laplace transform of sin t ?

1/(s² + 1)
1/(s² - 1)
S/(s² - 1)
S/(s² + 1)

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Process Control and Instrumentation
Polarograph is meant for the analysis of

Miscible liquids
Gaseous mixture
Solids
Isotopes

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Process Control and Instrumentation
Positioning controllers are used for

Temperature changes
High loads
Flow rate changes
Low loads

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