Power Engineering 3B1 Chapter 11 Question and answers correctly solved 2024/2025
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Course
BOIE 8010
Institution
BOIE 8010
Power Engineering 3B1 Chapter 11 Question and answers correctly solved 2024/2025 Power Engineering 3B1 Chapter 11
Subsidence is accomplished by passing water through a basin or tank of such design that the velocity of the water is reduced to a point, to permit ___________.
a. subsidence
b. co...
Power Engineering 3B1 Chapter 11
Subsidence is accomplished by passing water through a basin or tank of such
design that the velocity of the water is reduced to a point, to permit
___________.
a. subsidence
b. coagulation
c. flocculation
d. filtering - correct answer ✔b
__________ are chemicals, which cause the fine particles to gather together
into a larger mass, which will settle out much more readily.
a. Caustic
b. Coagulants
c. Acids
d. Zeolite - correct answer ✔b
___________ is the further increase in size and volume of the precipitating
particles and is done by gentle agitation of the water.
a. Subsidence
b. Coagulation
c. Flocculation
d. Filtering - correct answer ✔c
The coagulant, when added to the water, will produce a spongy substance
known as _____.
a. mud
b. floc
, c. sand
d. waste - correct answer ✔b
A water _______ allows the coagulation and settling of suspended solids
contained in water, to take place.
a. softener
b. exchanger
c. clarifier
d. filter - correct answer ✔c
The clarified water is drawn off through a submerged collector pipe at the
______ of the upflow zone.
a. bottom
b. top
c. side
d. middle - correct answer ✔b
External water treatment using continuous methods of subsidence allows:
1. Clarified water to be drawn continuously from the tank
2. Continuous removal of solids from the tank
3. Complete removal of turbidity
4. Removal of colloidal particles without coagulation
a. 1,2,3
b. 1,3,4
c. 1,2,4
d. 2,3,4
e. 1,2,3,4 - correct answer ✔c
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