Chemical Engineering - Process Control and Instrumentation

6. 

Radiation pyrometers as compared to thermocouples

A. has a slower speed of response.
B. can measure higher temperature.
C. can't measure the temperature of moving objects.
D. is more affected by corrosive atmosphere.

Answer: Option B

Explanation:

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7. 

Liquid flow rate in a small channel is best measured by a/an

A. weir
B. pitot tube
C. vane meter
D. venturimeter

Answer: Option B

Explanation:

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8. 

Specific gravity of a liquid can not be measured by a/an

A. anemometer
B. specific gravity bottle
C. pycnometer
D. hydrometer

Answer: Option A

Explanation:

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9. 

__________ temperature scale assigns 0° to the 'ice point' and 80° to the 'steam point'.

A. Celcius
B. Rankine
C. Reumur
D. Farenhite

Answer: Option C

Explanation:

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10. 

Dead zone is the

A. same as time constant.
B. same as transportation lag.
C. maximum change in the variable that does not change the reading of the instrument.
D. none of these.

Answer: Option C

Explanation:

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