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Civil Engineering - Waste Water Engineering

Exercise : Waste Water Engineering - Section 1
26.
Clogging of sewers, is caused due to
silting
low discharge
greasy and oily matters
domestic wastes thrown in manholes
all the above.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
27.
A sewer pipe contains 1 mm sand particles of specific gravity 2.65 and 5 mm organic particles of specific gravity 1.2, the minimum velocity required for removing the sewerage, is
0.30 m/sec
0.35 m/sec
0.40 m/sec
0.45 m/sec
0.50 m/sec.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
28.
The coagulant widely used for sewage treatment, is
alum
ferric chloride
ferric sulphate
chlorinated copperas.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
29.
House connections to the laterals is generally made by
R.C.C.
P.C.C.
Cast iron
Glazed stonewares.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
30.
The ratio of maximum sewage flow to average sewage flow for mains up to 1 m in diameter, is
1.5
2.0
3.0
4.0
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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