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Process Control and Instrumentation

Process Control and Instrumentation
Transfer function of transportation lag is

None of these
ETS
E-TS
1/(TS + 1)

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Process Control and Instrumentation
Which of the following can not measure a temperature of 1600°C ?

Platinum resistance thermometer
Radiation pyrometer
Photo-electric pyrometer
Thermocouple

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

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

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Process Control and Instrumentation
Which of the following is never used as an element of industrial resistance thermometer?

Lead
Nickel
Copper
30% iron + 70% nickel

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Process Control and Instrumentation
The open loop transfer function of a control system is KR/(1 + TS) . This represents

A second order system
A first order time lag
Dead time system
A first order system

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Process Control and Instrumentation
Temperature measuring instruments are standardised mostly with __________ points of pure substances.

Both A & B Here
Melting
Neither A nor B Here
Boiling

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