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Sedimentation And Filtration(Engineering > Environmental Engineering ) Questions and Answers
Home
Topic
Engineering
Environmental Engineering
Sedimentation And Filtration
Question 1.
Which of the following represents the coagulant pipe in the following figure?
A
B
C
D
Explanation:-
Answer: Option A. ->
A
Answer:
(a).
A
Question 2.
Which of the following represents the device which is used for sludge removal in the following figure?
F
E
D
B
Explanation:-
Answer: Option C. ->
D
Answer:
(c).
D
Question 3.
_________ is the average of velocities at a point over a definite period of time.
Mean velocity
Relative velocity
Velocity gradient
Temporal mean velocity
Explanation:-
Answer: Option D. ->
Temporal mean velocity
Answer:
(d).
Temporal mean velocity
Question 4.
Which of the following goes to the flocculation tank in the following figure?
B
C
E
F
Explanation:-
Answer: Option B. ->
C
Answer:
(b).
C
Question 5.
Which of the following is the correct expression regarding temporal mean velocity in the following figure?
G = (P/μV)½
G = (P/μV)
G = (P/μV)²
G = (Pμ/V)½
Explanation:-
Answer: Option A. ->
G = (P/μV)½
Answer:
(a).
G = (P/μV)½
Question 6.
In which type of filter, rate of filtration is low?
Slow sand filter
Rapid sand filter
Gravity filter
Pressure filter
Explanation:-
Answer: Option A. ->
Slow sand filter
Answer:
(a).
Slow sand filter
Question 7.
In the ________ zone of purification in filter media, bacteria oxidizes the organic matter completely.
Autotrophic
Heterotrophic
Schmutzdecke
Electrolytic
Explanation:-
Answer: Option B. ->
Heterotrophic
Answer:
(b).
Heterotrophic
Question 8.
Identify the correct statement from the following options.
Rapid sand filter has a high initial cost
Coagulation is essential in slow sand filter
Slow sand filter requires skilled supervision
Period of cleaning of Rapid sand filter is 1-2 days
Explanation:-
Answer: Option D. ->
Period of cleaning of Rapid sand filter is 1-2 days
Answer:
(d).
Period of cleaning of Rapid sand filter is 1-2 days
Question 9.
The filtration rate of a slow sand filter is _____ litres of water per square metre.
20
30
50
100
Explanation:-
Answer: Option D. ->
100
Answer:
(d).
100
Question 10.
What is the color of the surface coating formed during the filtration process?
White
Brown
Green
Reddish brown
Explanation:-
Answer: Option D. ->
Reddish brown
Answer:
(d).
Reddish brown
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