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Process Control and Instrumentation

Process Control and Instrumentation
Flow rate of a river is measured by a/an

Open weir
Pitot tube
Kennison nozzle
Vane meter

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

On-off controller
Tubular reactor
None of these
CSTR

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Process Control and Instrumentation
Thermisters which have a very high temperature co-efficient of resistivity belong to the class of solid called

Insulators
Semi conductors
Dielectrics
Conductors

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Process Control and Instrumentation
Thermal wells used in temperature measurements should have

Very thick walls
Polished surface
Low emissivity
High transmissivity of radiation

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Process Control and Instrumentation
Polarograph is meant for the analysis of

Gaseous mixture
Solids
Miscible liquids
Isotopes

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Process Control and Instrumentation
When a bare thermocouple is covered by a protective sheath, the response becomes

Slower and non-oscillatory
Faster and non-oscillatory
Slower and oscillatory
Faster and oscillatory

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