A. Kinchling
B. Lloyd Davis
C. Frubling
D. All the above
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Related Mcqs:
- The rational formula for peak drainage discharge, was evolved by_________________?
A. Fruhling
B. Lloyd David
C. Kuichling
D. All of these - If is the rugosity coefficient, is the bed slope of sewer, the velocity of flow in m/sec may be obtained by the formula V = (1/n) r2/3 s1/2 evolved by_________________?
A. Chezy
B. Manning
C. Bazin
D. Kutter - The formula which accepts the value of rugosity coefficient n = 0.012 to be used in Manning’s formula, is given by______________________?
A. Bazin
B. Crimp and Bruges
C. William-Hazen
D. Kutter - The drainage area of a town is 12 hectares. Its 40% area is hard pavement ( K = 0.85), the 40% area is unpaved streets (K = 0.20) and the remaining is wooded areas (K = 0.15). Assuming the time of concentration for the areas as 30 minutes and using the formula Ps = 900/(t + 60) the maximum run off is__________________?
A. 0.10 cumec
B. 0.12 cumec
C. 0.15 cumec
D. 0.20 cumec - The gas evolved in sewers is________________?
A. Carbondioxide
B. Hydrogen sulphide
C. Methane
D. All of these - 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_________________?
A. 100 cm
B. 90 cm
C. 80 cm
D. 50 cm - A cylindrical ejector having its height 2 m fills after every 10 minutes with a peak sewage discharge of 0.0157 cumec. The diameter of the ejector chamber, is_____________________?
A. 2.30 m
B. 2.40 m
C. 2.45 m
D. 2.50 m - When drainage to sewage ratio is 20, the peak dry weather flow is_______________?
A. 20% of the design discharge
B. Slightly less than 5% of the design discharge
C. Slightly more than 5% of the design discharge
D. None of these - For a peak discharge of 0.0157 cumec, with a velocity of 0.9 m/sec, the diameter of the sewer main, is________________?
A. 10 cm
B. 12 cm
C. 15 cm
D. 18 cm - The use of coarse screens for the disposal of sewage, may be dispensed with by______________?
A. Comminutor
B. Shredder
C. Both A. and B.
D. Neither A. nor B.
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