41. If Biochemical oxygen demand (BOD) of a town is 20000 kg/day and BOD per capita per day is 0.05 kg, then population equivalent of town is
42. The specific gravity of sewage is
43. The effective size of sand particles used in slow sand filters is
44. Chlorine demand of water is equal to
45. Corrosion in concrete sewers is caused by
46. The commonly used material for water supply pipes, which has the properties of being strong, not easily corroded and long life but is heavy and brittle, is
47. The suitable layout of a distribution system for irregularly growing town is
48. Assertion A: The consumption of water increases with increase in the distribution pressure.
Reason R: Higher distribution pressure causes more loss and waste of water
Select your answer according to the coding system given below
Reason R: Higher distribution pressure causes more loss and waste of water
Select your answer according to the coding system given below
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