Chemical Engineering - Process Control and Instrumentation

1. 

Pyrometry refers to the measurement of temperature

A. with the mercurial thermometer upto 350°C.
B. directly.
C. which is of higher magnitude.
D. all (a), (b) & (c).

Answer: Option C

Explanation:

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2. 

Photoelectric pyrometers are suitable in the temperature range of __________ °C.

A. 400-1600
B. 800-1600
C. 800-2500
D. 400-1000

Answer: Option B

Explanation:

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3. 

Non-metallic diaphragm used as pressure sensor in instruments is generally made of

A. teflon
B. synthetic rubber
C. bakelite
D. thick paper

Answer: Option B

Explanation:

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4. 

Response of a linear control system for a change in set point is called

A. frequency response
B. transient response
C. servo problem
D. regulator problem

Answer: Option C

Explanation:

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5. 

Hot wire anemometer is used for the measurement of

A. flow rates of fluids.
B. flow rates of granular solids.
C. very high temperature.
D. thermal conductivity of gases.

Answer: Option A

Explanation:

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