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MCQs

Total Questions : 3147 | Page 136 of 315 pages
Question 1351. A thick liquid like a syrup has a __________ viscosity than a light liquid like water.
  1.    lesser
  2.    greater
  3.    Can't say
  4.    None of these
 Discuss Question
Answer: Option B. -> greater
Answer: (b).greater
Question 1352. In an internal mouthpiece, if the jet after contraction does not touch the sides of the mouthpiece, then the mouthpiece is said to be
  1.    running full
  2.    running free
  3.    partially running full
  4.    partially running free
 Discuss Question
Answer: Option B. -> running free
Answer: (b).running free
Question 1353. A vessel of 4 m³ contains an oil which weighs 30 kN. The specific weight of the oil is
  1.    4.5 kN/m³
  2.    6 kN/m³
  3.    7.5 kN/m³
  4.    10 kN/m³
 Discuss Question
Answer: Option C. -> 7.5 kN/m³
Answer: (c).7.5 kN/m³
Question 1354. Coefficient of discharge Cd is equal to (where Cc = Coefficient of contraction, Cv = Coefficient of velocity, and Cr = Coefficient of resistance)
  1.    Cc x Cv
  2.    Cc x Cr
  3.    Cv x Cr
  4.    Cc/Cr
 Discuss Question
Answer: Option A. -> Cc x Cv
Answer: (a).Cc x Cv
Question 1355. The highest efficiency is obtained with a channel of __________ section.
  1.    circular
  2.    square
  3.    rectangular
  4.    trapezoidal
 Discuss Question
Answer: Option D. -> trapezoidal
Answer: (d).trapezoidal
Question 1356. The depth of centre of pressure lor an immersed surface inclined at an angle θ with the liquid surface lies at a distance equal to __________ the centre of gravity.
  1.    below
  2.    above
  3.    below
  4.    above
 Discuss Question
Answer: Option C. -> below
Answer: (c).below
Question 1357. According to Chezy's formula, the discharge through an open channel is (where A = Area of flow, C = Chezy's constant, m = Hydraulic mean depth, and i = Uniform slope in bed)
  1.    A m x i
  2.    C m x i
  3.    AC m x i
  4.    mi A x C
 Discuss Question
Answer: Option C. -> AC m x i
Answer: (c).AC m x i
Question 1358. When a liquid is flowing through a pipe, the velocity of the liquid is
  1.    maximum at the centre and minimum near the walls
  2.    minimum at the centre and maximum near the walls
  3.    zero at the centre and maximum near the walls
  4.    maximum at the centre and zero near the walls
 Discuss Question
Answer: Option A. -> maximum at the centre and minimum near the walls
Answer: (a).maximum at the centre and minimum near the walls
Question 1359. Froude's number is the ratio of inertia force to
  1.    pressure force
  2.    elastic force
  3.    gravity force
  4.    surface tension force
 Discuss Question
Answer: Option C. -> gravity force
Answer: (c).gravity force
Question 1360. The water pressure per metre length on a vertical masonry wall of dam is (where w = Specific weight of the liquid, and H = Height of the liquid)
  1.    wH/2
  2.    wH
  3.    wH2/2
  4.    wH2/4
 Discuss Question
Answer: Option C. -> wH2/2
Answer: (c).wH2/2

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