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PROCESS CONTROL AND INSTRUMENTATION

Process Control and Instrumentation
Which of the following instruments is not used for measuring sub-zero (<0°) temperatures?

Vapor pressure thermometer
Radiation pyrometer
Platinum resistance thermometer
Mercury in glass thermometer

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Process Control and Instrumentation
A non-linear chemical system is exemplified by a/an

Isothermal CSTR
Mixer
None of these
Non-isothermal CSTR

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Process Control and Instrumentation
The unit of 'time constant' of a system is the same as that of

(time)⁻¹
Time
Velocity
None of these

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Process Control and Instrumentation
Thermal well made of __________ gives the fastest speed of response, while measuring temperature by thermocouples.

Nichrome
Steel
Vycor (a glass)
Inconel

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Process Control and Instrumentation
Silver point temperature is __________ °C.

860.5
960.5
760.5
1060.5

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