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Civil Engineering - Waste Water Engineering

Exercise : Waste Water Engineering - Section 2
41.
In septic tanks,
free board of 0.3 m may be provided
the baffles or tees are extended up to top level of scum
the clear space between the baffle top and covering slab is about 7.5 cm
the inlet is kept 30 cm below the sewage line and outlet is kept at a level 40% depth of the sewage
all the above.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
42.
The sewer pipe which carries sewage from a building for immediate disposal is
house sewer
lateral sewer
intercepting sewer
main sewer.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
43.
The algae dies out in the zone of
degradation
active decomposition
recovery
cleaner water.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
44.
The recommended detention period for grit chambers is
1 minute
2 minutes
3 minutes
5 minutes.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
45.
Pick up the correct statement from the following :
The materials separated by screens, is called screenings
The screenings are disposed off either by burning or by burial or by dumping
The process of burning the screenings, is called incineration
The process of burning the screenings, is known as compositing
All the above.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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