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Civil Engineering - Waste Water Engineering

Exercise : Waste Water Engineering - Section 6
36.
The layers of vegetable wastes and night soil alternatively piled above the ground to form a mound, is called
a heap
plateu
windrow
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
37.
If the discharge of a sewer running half is 628 1.p.s., i = 0.001, and n = 0.010, the diameter of the sewer, is
1.39 m
1.49 m
1.59 m
1.69 m
1.79 m.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
38.
For efficient working of a sewer, it must be ensured that
minimum velocity of 0.45 m/sec, is maintained at its minimum flow
a maximum velocity of 0.90 m/sec, is maintained at its maximum flow
both (a) and (b)
neither (a) nor (b).
Answer: Option
Explanation:
No answer description is available. Let's discuss.
39.
A manhole is generally provided at each
bend
junction
change of gradient
change of sewer diameter
all the above.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
40.
Pick up the correct statement from the following :
Rate of digestion of slugde is more at higher temperature
Thermophilic organisms digest the sludge if the temperature ranges from 40° to 60°C
Mesophilic organisms digest the sludge if the temperature is between 25° and 40°C
90% of digestion takes place in 30 days at 29°C, the optimum mesophilic temperature
All the above.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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