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Process Control and Instrumentation

Process Control and Instrumentation
Which of the following thermocouple materials does not contain nickel?

Constantan
Alumel
None of these
Chromel

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Process Control and Instrumentation
Emf developed by a thermocouple, while measuring a temperature of 600°C is about 5.5 mV. The type of thermocouple used is

Either A, B or C
Iron-constantan
Platinum-platinum+rhodium
Chromel-alumel

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Process Control and Instrumentation
In second order underdamped system,

Large damping co-efficient means smaller damping
Overshoot increases for increasing damping co-efficient
Decay ratio = overshoot
Decay ratio = (overshoot)²

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Process Control and Instrumentation
Optical activity of a solution can be determined using a

Dilatometer
Polarimeter
Refractrometer
Polarograph

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

Temperature of
Carbon monoxide in
Oxygen in
Carbon dioxide in

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Process Control and Instrumentation
What is the Laplace transform of impulse input having magnitude 'X' ?

1/X
1
X²
X

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