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Process Control and Instrumentation

Process Control and Instrumentation
Bimetal strips are not used in

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

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Process Control and Instrumentation
The maximum service temperature for fibre glass used as thermocouple wire insulation material is __________ °C.

1000
500
750
250

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Process Control and Instrumentation
Use of I-control along with P-control facilitates

Reduction of stability time
Reduction of offset
None of these
Elimination of offset

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Process Control and Instrumentation
Emission spectroscopy is used for

Determination of CO₂ in gases
Solids and metal analysis
NOxdetermination
Determining water purity

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Process Control and Instrumentation
An amplitude ratio of 0.1 corresponds to __________ decibels.

10
-10
-20
20

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Process Control and Instrumentation
Which of the following fluid flow measuring devices can measure the largest flow rate?

V-notch
Weir
Orificemeter
Rotameter

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