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Process Control and Instrumentation

Process Control and Instrumentation
Bourdon tube is never made of

Monel metal
Phosphor bronze
Cast iron
Stainless steel

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Process Control and Instrumentation
The frequency at which maximum amplitude ratio is attained is called the __________ frequency.

Corner
Cross-over
Resonant
Natural

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Process Control and Instrumentation
Which of the following thermocouples is the most suitable for measuring a temperature of about 1600°C in an oxidizing atmosphere?

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

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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.

1
100
50
10

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Process Control and Instrumentation
__________ are analysed using a polarograph.

Isotonic solutions
Solids
Gases
Liquids

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Process Control and Instrumentation
Which of the following is not a composition measuring instrument?

Hot wire anemometer
Mass spectrometer
Polarograph
Thermal conductivity cell

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