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Process Control and Instrumentation

Process Control and Instrumentation
Emission spectroscopy is used for

Determining water purity
Solids and metal analysis
Determination of CO₂ in gases
NOxdetermination

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Process Control and Instrumentation
Mcleoid gauge is used to measure the

Vacuum
Point velocity
Flow rate
Pressure

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Process Control and Instrumentation
Concentration of sugar solution can be determined by the

Polarimetry
Emission spectroscopy
Oscillometry
Flame photometry

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Process Control and Instrumentation
Find the ultimate gain and frequency for a proportional controller in the case of a process having the transfer function Gp(s) = 1/(4s + 1)(2s + 1)(s + 1).

W = √(7/8), Kc = 45/4
W = 1, Kc = 13
W = √(7/6), Kc = 46/3
W = 1/√14, Kc = 45/7√14

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Process Control and Instrumentation
In a shell and tube heat exchanger, the outlet temperature of heating/cooling fluid is the __________ variable.

None of these
Manipulated
Load
Controlled

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Process Control and Instrumentation
Which of the following does not figure in the list of seven substances selected for international temperature scale?

Ice (F.P) and steam (B.P)
Oxygen and sulphur (B.P)
Zinc (B.P) and mercury (F.P)
Antimony and silver (F.P)

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