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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

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

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Process Control and Instrumentation
Pressure of 0.01 psi (absolute) can be measured by __________ gauge.

Ionisation
Mcloid
Pirani
None of these

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Process Control and Instrumentation
Which of the following relates the emf. generated in a single homogeneous wire to the temperature difference?

Seebeck effect
Peltier effect
Thomson effect
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
Platinum-platinum+rhodium
Iron-constantan
Either A, B or C

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Process Control and Instrumentation
A control system has the following transfer function F(s) = (s - 1)(s + 1)/s(s - 2)(s + 4)The initial value of the corresponding time function is

43838
1
44020
-1

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

On-off controller
CSTR
Tubular reactor
None of these

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