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Process Control and Instrumentation

Process Control and Instrumentation
Which of the following thermocouples has the least temperature measurement range?

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

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Process Control and Instrumentation
Which of the following judges the accuracy of an instrument?

None of these
Static error
Dead zone
Drift

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Process Control and Instrumentation
Liquid flow rate in an open channel can not be measured by a/an

Rectangular weir
Orifice meter
Cipolletti weir
V-notch

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Process Control and Instrumentation
Bimetal strips are not used in

Relays for opening & closing of electrical circuits
Thermostats
Bimetallic thermometers
Thermocouples

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Process Control and Instrumentation
Platinum resistance thermometer can be used upto antimony point which is __________ °C, and is the temperature of equilibrium between solid antimony & liquid antimony at normal atmospheric pressure.

1261.93
630.74
961.93
1064.43

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Process Control and Instrumentation
Which of the following is not the triple point of water?

32°F
273°K
492°R
32°R

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