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Process Control and Instrumentation

Process Control and Instrumentation
Mcleoid gauge is used to measure the

Vacuum
Flow rate
Point velocity
Pressure

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Process Control and Instrumentation
Alphatron measures pressure __________ microns.

> 3
< 1
< 0.1
< 3

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Process Control and Instrumentation
Emf developed by a thermocouple while measuring a temperature of 400°C is 22 mV. The type of thermocouple used is

Chromel-alumel
Platinum-rhodium
Iron-constantan
Platinum-platinum+rhyodium

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Process Control and Instrumentation
Which is the most suitable instrument for measuring pressure below 3 microns?

Mcleoid gauge
Alphatron
Bourdon guage
Ionisation gauge

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Process Control and Instrumentation
In an exothermic chemical reactor, the manipulated variable is the flow rate of

Product
Reactants
None of these
Coolant

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Process Control and Instrumentation
Bimetal strips are not used in

Relays for opening & closing of electrical circuits
Bimetallic thermometers
Thermostats
Thermocouples

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