Chemical Engineering - Process Control and Instrumentation

36. 

For the time domain function f(t) = t, the Laplace transform of is given by

A. 1/2 S3
B. 2/S3
C. 1/S3
D. 2/S2

Answer: Option C

Explanation:

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37. 

Temperature of __________ can not be measured by an optical or radiation pyrometer.

A. hot blast (air) from stoves
B. molten slag flowing out of blast furnace
C. combustion space in boilers
D. rotary limestone calcination kiln

Answer: Option A

Explanation:

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38. 

Gain margin is equal to the

A. amplitude ratio
B. reciprocal of amplitude ratio
C. gain in P controller
D. gain in P-I controller

Answer: Option B

Explanation:

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39. 

A system with transfer function is of __________ order.

A. zero
B. 1st
C. 2nd
D. 3rd

Answer: Option B

Explanation:

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40. 

In Bode plot, Φ vs ω is plotted on a/an __________ graph paper.

A. log-log
B. ordinary
C. semi-log
D. triangular

Answer: Option A

Explanation:

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