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Chemical Engineering - Process Control and Instrumentation

Exercise : Process Control and Instrumentation - Section 7
11.
0n-off control which is a special case of proportional control, has a band width of about __________ percent.
100
75
25
0
Answer: Option
Explanation:
No answer description is available. Let's discuss.
12.
The thermal emf-temperature relationship of most thermocouples is
linear
parabolic
exponential
square root
Answer: Option
Explanation:
No answer description is available. Let's discuss.
13.
Which is the strongest paramagnetic gas?
CO2
O2
NO
NO2
Answer: Option
Explanation:
No answer description is available. Let's discuss.
14.
In Bode plot, A.R. vs. w is plotted on a/an __________ graph paper.
log-lag
triangular
ordinary
semi-log
Answer: Option
Explanation:
No answer description is available. Let's discuss.
15.
A first order system with unity gain and time constant τ is subjected to a sinusoidal input of frequency w = 1/τ. The amplitude ratio for this system is
1
0.5
1/2
0.25
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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