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Process Control and Instrumentation

Process Control and Instrumentation
Emission spectroscopy is used for

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

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Process Control and Instrumentation
A system with transfer function (2S/4S) + 1 is of __________ order.

2nd
Zero
1st
3rd

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Process Control and Instrumentation
Relationship between absorption/evolution of heat at the thermocouple junctions and the current flow in the circuit is given by __________ effect.

Peltier
None of these
Seebeck
Thomson

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Process Control and Instrumentation
Paramagnetism method is not used for the composition determination of __________ in gases.

Oxides of nitrogen
Carbon dioxide
Any of these
Oxygen

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Process Control and Instrumentation
Thermal wells are used in the temperature measurement to

Guard against corrosive and oxidising action on thermocouple materials
Reduce measuring lag
Increase the sensitivity
Increase the fidelity

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Process Control and Instrumentation
The pressure sensing element of elastic type pressure gauge is never made in the form of a

Strip
Bellow
Diaphragm
Bourdon tube

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