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Process Control and Instrumentation

Process Control and Instrumentation
Stalagmometer is used for the measurement of

Refractive index
Kinematic viscosity
Surface tension
Optical activity

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

Orificemeters
Weirs
Mouthpieces
Notches

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Process Control and Instrumentation
When a bare thermocouple is covered by a protective sheath, the response becomes

Slower and non-oscillatory
Faster and oscillatory
Slower and oscillatory
Faster and non-oscillatory

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Process Control and Instrumentation
A photo electric device in which the resistance of the metal is directly proportional to the light striking on it, is known as photo-conductive cell. Photoelectric transducers are used for the measurement of those parameters, which can be used to produce variation in

Light intensity
Flux density
Voltage
Current

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Process Control and Instrumentation
Response of a system to a sinusoidal input is called __________ response.

Frequency
None of these
Unit step
Impluse

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Process Control and Instrumentation
Thermistors are made of

Ultra pure metals
Nickel-chromium alloys
Metal oxides
Iron-copper alloys

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