MS WORD QUIZ

Measurement of sub-zero Celcius temperature in industry is done most commonly by

Bi-metallic thermometers

Thermocouples

Resistance thermometers

Gas thermometers

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Which of the following is not suitable for measuring the temperature of a red hot object in the range of 800 - 1600°C?

Radiation pyrometer

Thermocouples

Photoelectric pyrometer

Optical pyrometer

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Turbine flow meters are suitable for

Both B and C

Very limited flow ranges

Cryogenic flow measurements

Aerospace and in air borne applications

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Which of the following thermometers is not suitable for distant reading upto 60 metres?

Vapor pressure thermometer

Constant volume gas thermometer

Resistance thermometer

Mercury in glass thermometer

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Specific gravity of a liquid can not be measured by a/an

Pycnometer

Hydrometer

Specific gravity bottle

Anemometer

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Mass spectrometer is used for the composition analysis of

Solids

Isotopes

None of these

Alloys

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Thermocouple in a thermal well behaves as a true

First order system

Second order system (underdamped)

Multiple first order system

Second order system (overdamped)

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Time constant is the

Same as transportation lag

Same as dead time

Time required by the measured variable to reach 63.2% of its ultimate change

Time taken by the controlled variable to reach 63.2% of its full change

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Psychrometer determines the

Water of crystallisation

Moisture content of solids

Hygroscopic nature of solids

Humidity of gases

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Thermal conductivity cell is the primary element of a/an __________ analyser.

Carbon monoxide

Oxygen

Carbon dioxide

Sulphur dioxide

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