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Process Control and Instrumentation

Process Control and Instrumentation
Emf developed by a thermocouple while measuring a temperature of 800°C is about 31 mV. The type of thermocouple used is

None of these
Platinum-platinum+rhodium
Iron-constantan
Chromel-alumel

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Process Control and Instrumentation
Liquid flow rate in a small channel is best measured by a/an

Vane meter
Pitot tube
Weir
Venturimeter

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Process Control and Instrumentation
Liquid discharge from a tank or reservoir can not be measured by

Weirs
Notches
Mouthpieces
Orificemeters

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Process Control and Instrumentation
Identify an unbounded input from inputs whose transfer functions are given below

1/S²
1/S
1
1/(S² + 1)

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Process Control and Instrumentation
The term analogous to voltage in a single tank system is the

Liquid volume in the tank
Level of liquid
Heat content of the system
Flow rate

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Process Control and Instrumentation
What is the dynamic error in a critically damped second order instrument for a ramp input (AT)?

1.5 AT
0.5 AT
√AT
2 AT

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