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Process Control and Instrumentation

Process Control and Instrumentation
In a shell and tube heat exchanger, the inlet temperature of heating/cooling fluid is the __________ variable.

None of these
Manipulated
Controlled
Load

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Process Control and Instrumentation
In Bode plot, A.R. vs. w is plotted on a/an __________ graph paper.

Semi-log
Triangular
Ordinary
Log-lag

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Process Control and Instrumentation
0n-off control which is a special case of proportional control, has a band width of about __________ percent.

75
25
100

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Process Control and Instrumentation
The transfer function of a pure dead time system with dead time τd is

1/(τds + 1)
Eτds
Τds + 1
E-τds

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

Tubular reactor
On-off controller
CSTR
None of these

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Process Control and Instrumentation
Emf developed by a thermocouple, while measuring a temperature of 600°C is about 5.5 mV. The type of thermocouple used is

Chromel-alumel
Iron-constantan
Either A, B or C
Platinum-platinum+rhodium

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