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MCQs

Total Questions : 94 | Page 6 of 10 pages
Question 51. The speed at which the centrifugal pump runs (in r.p.m) is _____________
  1.    200
  2.    300
  3.    500
  4.    1200
 Discuss Question
Answer: Option C. -> 500
Answer: (c).500
Question 52. The maximum efficiency of a centrifugal pump is _____________
  1.    50%
  2.    60%
  3.    85%
  4.    100%
 Discuss Question
Answer: Option C. -> 85%
Answer: (c).85%
Question 53. The impeller in the volute pump is surrounded by _____________
  1.    Discharge pipe
  2.    Throat
  3.    Suction pipe
  4.    Volute chamber
 Discuss Question
Answer: Option D. -> Volute chamber
Answer: (d).Volute chamber
Question 54. Based on the type of casing, the centrifugal pump is divided into _____ types.
  1.    2
  2.    3
  3.    4
  4.    5
 Discuss Question
Answer: Option A. -> 2
Answer: (a).2
Question 55. The advance version of volute chamber is designed by _____________
  1.    V. Richardson
  2.    J. Thomson
  3.    Darcy Weisbach
  4.    Bernoulli
 Discuss Question
Answer: Option B. -> J. Thomson
Answer: (b).J. Thomson
Question 56. Depending on the number of impellers, the centrifugal pump is divided into ______________ types.
  1.    Two
  2.    Three
  3.    Four
  4.    Six
 Discuss Question
Answer: Option A. -> Two
Answer: (a).Two
Question 57. The each stage in centrifugal pump increase the head by ______________
  1.    10m
  2.    20m
  3.    30m
  4.    60m
 Discuss Question
Answer: Option C. -> 30m
Answer: (c).30m
Question 58. A diffuser pump is also called as _______ pump.
  1.    Reciprocating pump
  2.    Volute pump
  3.    Turbine pump
  4.    Rotary pump
 Discuss Question
Answer: Option C. -> Turbine pump
Answer: (c).Turbine pump
Question 59. Consider the following statements regarding vortex chamber.
i. Reduce the velocity of the pump
ii. Convert pressure energy into kinetic energy
iii. Decrease the efficiency of the pump
Which of the above statement is correct?
  1.    Only i
  2.    Only ii
  3.    Only iii
  4.    i, ii, iii
 Discuss Question
Answer: Option A. -> Only i
Answer: (a).Only i
Question 60. The specific speed of a pump is given by _____________
  1.    NQ½ / H²
  2.    NQ½ / H¾
  3.    NQ / H¾
  4.    NQ½ / H¼
 Discuss Question
Answer: Option B. -> NQ½ / H¾
Answer: (b).NQ½ / H¾

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