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Process Control and Instrumentation

Process Control and Instrumentation
Reset rate is the another term used for __________ time.

None of these
Dead
Integral
Derivative

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Process Control and Instrumentation
Routh stability method uses __________ loop transfer function.

Either A or B
Neither A nor B
Open
Closed

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Process Control and Instrumentation
A mercury barometer measures the __________ pressure.

Atmospheric
Gauge
Vacuum
Absolute

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Process Control and Instrumentation
Thermistors are made of

Ultra pure metals
Metal oxides
Iron-copper alloys
Nickel-chromium alloys

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Process Control and Instrumentation
Polarograph is meant for the analysis of

Solids
Miscible liquids
Isotopes
Gaseous mixture

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Process Control and Instrumentation
The deflection in diaphragm (which is used as pressure sensor in pneumatic and electronic instruments) is dependent on the metal thickness, its diameter (d) and shape & number of corrugations. Its deflection is proportional to

D
D³
D²
D⁴

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