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Process Control and Instrumentation

Process Control and Instrumentation
Working principle of disappearing filament type optical pyrometer is based on the

Wien's law
Seebeck effect
Kirchoff's law
Peltier effect

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Process Control and Instrumentation
Flow rate through an orifice is __________ the pressure differential.

Proportional to the square root of
Proportional to
Inversely proportional to the square root of
Inversely proportional to the square of

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Process Control and Instrumentation
__________ is an example of distributed parameter system

CSTR
On-off controller
Tubular reactor
None of these

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Process Control and Instrumentation
Which of the following controllers has the least maximum deviation?

P-D controller
P-controller
P-I-D controller
P-I controller

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

Mixer
Non-isothermal CSTR
Isothermal CSTR
None of these

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

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

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