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WorksheetsAssignment 3- APC
Total questions: 20
Worksheet time: 9mins
Hybrid systems are defined as
dynamic system that exhibits both continuous and discrete dynamic behavior
Control devices that involve only two control mechanisms
control devices that involve combinations of control mechanisms
NONE
Two Examples for Hybrid system ________________ and ______________
(a)
What are the two area of applications of WEP
(a)
what is not a Disadvantages of the WEP ?
Low gas absorption efficiency
Sensitivity to changes in flow rate
Dust collection is wet
Simultaneous gas absorption and dust removal
The collected liquid droplets form a continuous _________over the collection plates.
spiral
centrifugal
downward
projectile
What are the different types of scrubbers?
(a)
The lime is slurried with water to approx ____ by weight of the total mixture.
25%
15%
8.5%
7.5%
The dry alkali absorbent most commonly used___
CaO
Ca(OH)2
CaCO3
None
The first commercial electrostatic precipitator was installed in North Wales in (a)
Poor alignment of electrodes falls under (a) problem
failure to empty hoppers falls under (a) problem
__________ doesnót fall under Operational Problems
process changes
poor electrical settings
mismatched power supply to load,
None
Name two chemical industry which uses ESP
(a)
In Chemical Industry, Precipitators have been used to collect (a) acid mists and to remove particulates
What would be the area of collecting plates (a) ?
what are three types of fabric filter cleaning methods (a)
Industrial example of Baghouse dust collector (a)
What are the major steps by which particles/droplets in the precipitation is removed?
(a)
what is not a type of single-stage electrostatic precipitators ?
single-stage flat surface type
single-stage tubular type
single-stage annular type
None of the above
For a duct precipitator of plate length and height (L and H), What is the area ?
(a)
