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Process Control and Instrumentation

Process Control and Instrumentation
Starting temperature of optical radiation pyrometer is __________ °C.

400
800
1500
1200

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Process Control and Instrumentation
Nickel percentage in invar which is an iron-nickel alloy, and is used as a thermocouple material is

12
36
54
68

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Process Control and Instrumentation
Flame photometry is used for the determination of compositional analysis of

Natural gas
Solids
Alkali metals
Isotopes

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Process Control and Instrumentation
Polarisation of light forms the working principle of a

Chromatograph
Polarimeter
Spectrometer
Polarograph

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Process Control and Instrumentation
A control system has the following transfer function F(s) = (s - 1)(s + 1)/s(s - 2)(s + 4)The initial value of the corresponding time function is

1
-1
44020
43838

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Process Control and Instrumentation
Specific conductance is defined as the reciprocal of resistance in ohms of 1c.c. of liquid at a specified temperature. Its value for distilled water is about __________ micro mho/cm³.

10
1
50
100

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