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Process Control and Instrumentation

Process Control and Instrumentation
Photoelectric pyrometers are suitable in the temperature range of __________ °C.

400-1000
800-2500
400-1600
800-1600

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Process Control and Instrumentation
Which of the following is the dynamic characteristics of an instrument?

Dead zone
Fidelity
Reproducibility
Sensitivity

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Process Control and Instrumentation
Dead zone in an instrument must be less than __________ percent of the scale.

1.5
8
4
0.2

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Process Control and Instrumentation
Which of the following thermocouples can measure the maximum temperature?

Chromel-alumel
Tungsten-molybdenum
Platinum-rhodium
Iron-constantan

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

Mixer
Isothermal CSTR
Non-isothermal CSTR
None of these

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Process Control and Instrumentation
Small furnace draught is accurately measured by an inclined tube manometer, in which the manometric liquid used most commonly is

Carbon tetrachloride
Paraffin
Water
Ethylene glycol

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