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Process Control and Instrumentation

Process Control and Instrumentation
__________ temperature scale assigns 0° to the 'ice point' and 80° to the 'steam point'

Farenhite
Rankine
Celcius
Reumur

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Process Control and Instrumentation
Helium gas constant volume thermometer is suitable for the measurement of a temperature of __________ °C.

< 0
< 100
> 800
> 0

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Process Control and Instrumentation
Thermistors are made of

Iron-copper alloys
Metal oxides
Nickel-chromium alloys
Ultra pure metals

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Process Control and Instrumentation
Temperature of __________ can not be measured by an optical or radiation pyrometer.

Molten slag flowing out of blast furnace
Hot blast (air) from stoves
Combustion space in boilers
Rotary limestone calcination kiln

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

Carbon monoxide in
Carbon dioxide in
Oxygen in
Temperature of

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Process Control and Instrumentation
__________ is undesirable in thermocouples used in industries,

Oxidation resistance
Non-linear relation of emf to temperature
Corrosion resistance
Linear relation of emf to temperature

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