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Process Control and Instrumentation

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

Isotopes
Solids
Alkali metals
Natural gas

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Process Control and Instrumentation
Which thermocouple can be used to measure a temperature of around 1400°C ?

Platinum-platinum+rhodium
Copper-constantan
None of these
Aluminium-chromel

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Process Control and Instrumentation
Emf developed by a thermocouple while measuring a temperature of 400°C is 22 mV. The type of thermocouple used is

Platinum-rhodium
Platinum-platinum+rhyodium
Iron-constantan
Chromel-alumel

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Process Control and Instrumentation
Pyrometry refers to the measurement of temperature

All of these
Which is of higher magnitude
With the mercurial thermometer upto 350°C
Directly

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Process Control and Instrumentation
When the damping co-efficient (ξ) is unity, the system is

Underdamped
Highly fluctuating
Critically damped
Overdamped

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Process Control and Instrumentation
Dilute wine was used as a thermometric liquid initially to develop temperature scale. First emperical temperature scale developed was the __________ scale.

Centigrade
Kelvin
Fahrenheit
Reaumer

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