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Process Control and Instrumentation

Process Control and Instrumentation
Specific conductance is defined as the reciprocal of resistance in ohms of 1c.c. of liquid at a specified temperature. Its value for distilled water is about __________ micro mho/cm³.

50
100
1
10

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Process Control and Instrumentation
Liquid levels in autocalves are measued by

Differential float type manometer
Simple float
None of these
Glass gauge

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Process Control and Instrumentation
Emission spectroscopy is used for

Determination of CO₂ in gases
NOxdetermination
Determining water purity
Solids and metal analysis

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Process Control and Instrumentation
Which of the following is not a differential pressure flow meter?

Rotameter
Venturimeter
Orificemeter
Flow nozzle

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Process Control and Instrumentation
Which of the following controllers has maximum offset?

P-I controller
P-controller
P-I-D controller
P-D controller

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Process Control and Instrumentation
Bode diagram are generated from output response of the system subjected to which of the following input?

Impulse
Step
Ramp
Sinusoidal

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