A manhole is classified as shallow if its depth is between
A. 0.4 to 0.5 m
B. 0.5 to 0.7 m
C. 0.7 to 0.9 m
D. 0.9 to 1.20 m
Answer: Option C
This Question Belongs to Civil Engineering >> Waste Water Engineering
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Related Questions on Waste Water Engineering
The effluent of a septic tank is
A. Fit for discharge into any open drain
B. Foul and contains dissolved and suspended solids
C. As good as that from a complete treatment
D. None of these
The bottom of the sewage inlet chamber of septic tanks, is provided an outward slope
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B. 1 in 10
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B. Without manhole covers
C. With depths more than 3.5 m
D. Having drains at different levels
Shallow manhole: 0.75–0.90 m deep
Normal manhole: about 0.90–1.50 m
Deep manhole: > 1.50 m