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MCQs

Total Questions : 1556 | Page 5 of 156 pages
Question 41. For sewer mains of 0.5 to 1 m diameter, the ratio of maximum daily sewage flow to the average daily sewage flow is assumed
  1.    1.5
  2.    2.0
  3.    2.5
  4.    3.0
 Discuss Question
Answer: Option B. -> 2.0
Question 42. Pick up the correct statement from the following:
  1.    Indore method of composting involves decomposition under aerobic conditions
  2.    Bangalore method of composting involves decomposing under anaerobic conditions
  3.    Fully stabilised refuse by the Bangalore method of compositing is a powdery mass called humus
  4.    all of these
 Discuss Question
Answer: Option D. -> all of these
Question 43. Pick up the correct statement from the following:
  1.    Inlets are provided on the road surface at the lowest point for draining rain water
  2.    Inlets are generally provided at an interval of 30 m to 60 m along straight roads
  3.    Inlets having horizontal openings, are called horizontal inlets
  4.    All the above
 Discuss Question
Answer: Option D. -> All the above
Question 44. The disintegrating pump in which solid matter is broken up before passing out, is
  1.    Centrifugal pump
  2.    Reciprocating pump
  3.    Pneumatic ejector
  4.    None of these
 Discuss Question
Answer: Option A. -> Centrifugal pump
Question 45. Hume steel pipes are
  1.    Steel pipes
  2.    Steel shell coated from inside with cement mortar
  3.    Steel shell coated from outside with cement mortar
  4.    Both B and C
 Discuss Question
Answer: Option D. -> Both B and C
Question 46. The ratio of maximum sewage flow to average sewage flow for trunk mains having diameters more than 1.25 m, is
  1.    1.5
  2.    2.0
  3.    3.0
  4.    4.0
 Discuss Question
Answer: Option A. -> 1.5
Question 47. Lead caulked joints are used for laying
  1.    Stone ware pipes
  2.    Earthenware pipes
  3.    C.I. pipes
  4.    G.I. pipes
 Discuss Question
Answer: Option B. -> Earthenware pipes
Question 48. Large diameter sewers subjected to external pressure alone, are reinforced
  1.    Near the inner surface of the pipe
  2.    Near the outer surface of the pipe
  3.    Both A and B
  4.    With elliptical cage
 Discuss Question
Answer: Option D. -> With elliptical cage
Question 49. The presence of free ammonia in sewage, is detected by
  1.    Boiling
  2.    Adding potassium permanganate
  3.    Adding sulphuric acid
  4.    Phenol-di-sulphuric acid
 Discuss Question
Answer: Option A. -> Boiling
Question 50. The rational formula for peak drainage discharge, was evolved by
  1.    Fruhling
  2.    Lloyd David
  3.    Kuichling
  4.    All of these
 Discuss Question
Answer: Option D. -> All of these

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