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Process Control and Instrumentation

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

Isotopes
Natural gas
Alkali metals
Solids

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Process Control and Instrumentation
Which of the following can not measure a temperature of 1600°C ?

Platinum resistance thermometer
Thermocouple
Radiation pyrometer
Photo-electric pyrometer

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Process Control and Instrumentation
The unit of 'time constant' of a system is the same as that of

(time)⁻¹
Velocity
Time
None of these

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Process Control and Instrumentation
A non-linear chemical system is exemplified by a/an

Isothermal CSTR
Non-isothermal CSTR
Mixer
None of these

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Process Control and Instrumentation
Working principle of bimetallic thermometers is difference in linear co-efficient of thermal expansion of two strips of different metals welded together. Which of the following has the maximum thermal co-efficient of linear expansion?

Invar
Nickel
Brass
Chromel

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Process Control and Instrumentation
Composition of alloys can be determined by

Chromatograph
Polarograph
Refractrometer
None of these

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