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Process Control and Instrumentation

Process Control and Instrumentation
In a single tank system, the transfer function of __________ to inlet flow rate is 1/TS+1.

Level
Both A & B Here
Outlet flow rate
Neither A nor B Here

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

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

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Process Control and Instrumentation
For increased speed of response of an expansion pressure spring thermometer, the thermometer bulb should have a

Large area but small mass
Small specific heat
All of these
High thermal conductivity

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Process Control and Instrumentation
Relationship between absorption/evolution of heat at the thermocouple junctions and the current flow in the circuit is given by __________ effect.

Thomson
None of these
Seebeck
Peltier

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Process Control and Instrumentation
What is the Laplace transform of impulse input having magnitude 'X' ?

1/X
X²
1
X

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Process Control and Instrumentation
Strain gage uses an electrical conductor wire, which when elastically stretched increases in length and reduces in diameter. Both these dimensional changes result in __________ in the electrical resistance of the wire.

Increase
Decrease
Exponential decrease
No change

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