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Waste Water Engineering

Waste Water Engineering
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

1.49 m
1.39 m
1.59 m
1.69 m

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Waste Water Engineering
If the peak discharge of a storm water drain (S.W. Drain) is expected to exceed 150 cumecs, the free board to be provided, is

100 cm
90 cm
80 cm
50 cm

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Waste Water Engineering
The disintegrating pump in which solid matter is broken up before passing out, is

Centrifugal pump
None of these
Pneumatic ejector
Reciprocating pump

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Waste Water Engineering
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

0.45 m/sec
0.30 m/sec
0.35 m/sec
0.40 m/sec

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Waste Water Engineering
The arrangement made for passing the sewer line below an obstruction below the hydraulic gradient lines called

Inverted syphon
Sag pipe
all of these
Depressed sewer

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Waste Water Engineering
A manhole is generally provided at each

Change of gradient
Bend
All of these
Junction

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