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Process Control and Instrumentation

Process Control and Instrumentation
Reference points i.e., ice point and steam point in Reaumer temperature scale are respectively

0° & 80°
- 273° & 80°
32° & 80°
32° & 460°

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Process Control and Instrumentation
Flow rate of sludge is not measured by a/an

Open weir
Orificemeter
Both B & C
Kennison nozzle

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

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

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Process Control and Instrumentation
Nickel percentage in invar which is an iron-nickel alloy, and is used as a thermocouple material is

36
12
68
54

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Process Control and Instrumentation
A typical example of a physical system with under damped characteristic is a

U-tube manometer
Spring loaded diaphragm valve
CSTR with first order reaction
Thermocouple kept immersed in a liquid filled thermowell

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Process Control and Instrumentation
Mercury manometer (U-tube type) exemplifies a __________ order system.

Zero
Third
Second
First

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