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Chemical Engineering - Process Control and Instrumentation

Exercise : Process Control and Instrumentation - Section 6
36.
Liquid flow rate in an open channel can not be measured by a/an
orifice meter
cipolletti weir
rectangular weir
V-notch
Answer: Option
Explanation:
No answer description is available. Let's discuss.
37.
The unit of 'time constant' of a system is the same as that of
velocity
time
(time)-1
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
38.
Which of the following filled system expansion thermometers has the lowest positive temperature measurement capability ?
Mercury in glass thermometer.
Alcohol in glass thermometer.
Fused metal (Na or K) in steel thermometer.
Nitrogen in steel thermometer.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
39.
Liquid column manometers are used for measuring the pressure __________ kgf/cm2 .
> 2(gage)
< 3 (gage)
< 10 (gage)
< atmospheric
Answer: Option
Explanation:
No answer description is available. Let's discuss.
40.
Cascade control means
feed forward control.
more than one feed-back loop.
on-off control.
one feed-back loop.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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