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Process Control and Instrumentation

Process Control and Instrumentation
Transfer function of transportation lag is

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

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Process Control and Instrumentation
Which of the following thermocouples is the most suitable for measuring a temperature of about 1600°C in an oxidizing atmosphere?

Platinum-platinum + rhodium
Iron-constantan
Chromel-alumel
Copper-constantan

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Process Control and Instrumentation
Response of a linear control system for a change in set point is called

Regulator problem
Servo problem
Transient response
Frequency response

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Process Control and Instrumentation
Liquid flow rate in an open channel can not be measured by a/an

Cipolletti weir
Rectangular weir
Orifice meter
V-notch

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Process Control and Instrumentation
Starting temperature of optical radiation pyrometer is __________ °C.

400
1500
800
1200

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Process Control and Instrumentation
Thermal wells used in temperature measurements should have

High transmissivity of radiation
Very thick walls
Low emissivity
Polished surface

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