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MCQs

Total Questions : 3147 | Page 132 of 315 pages
Question 1311. The discharge over a rectangular notch is (where b = Width of notch, and H = Height of liquid, above the sill of the notch)
  1.    Cd x b2gH
  2.    Cd x b2g x H
  3.    Cd x b2g x H3/2
  4.    Cd x b2g x H2
 Discuss Question
Answer: Option C. -> Cd x b2g x H3/2
Answer: (c).Cd x b2g x H3/2
Question 1312. The maximum discharge over a broad crested weir is
  1.    0.384 Cd x L x H1/2
  2.    0.384 Cd x L x H3/2
  3.    1.71 Cd x L x H1/2
  4.    1.71 Cd x L x H3/2
 Discuss Question
Answer: Option D. -> 1.71 Cd x L x H3/2
Answer: (d).1.71 Cd x L x H3/2
Question 1313. In a venturimeter, the velocity of liquid at throat is __________ than at inlet.
  1.    higher
  2.    lower
  3.    Can't say
  4.    None of these
 Discuss Question
Answer: Option A. -> higher
Answer: (a).higher
Question 1314. The discharge through a siphon spillway is
  1.    Cd x a2gH
  2.    Cd x a2g x H3/2
  3.    Cd x a2g x H2
  4.    Cd x a2g x H5/2
 Discuss Question
Answer: Option A. -> Cd x a2gH
Answer: (a).Cd x a2gH
Question 1315. The loss of head due to friction in a pipe of uniform diameter in which a viscous flow is taking place, is (where RN = Reynold number)
  1.    1/RN
  2.    4/RN
  3.    16/RN
  4.    64/RN
 Discuss Question
Answer: Option C. -> 16/RN
Answer: (c).16/RN
Question 1316. According to Manning's formula, the discharge through an open channel is (where M = Manning's constant)
  1.    A x M x m^1/2 x i^2/3
  2.    A x M x m^2/3 x i^1/2
  3.    A^1/2 x M^2/3 x m x i
  4.    A^2/3 x M^1/3 x m x i
 Discuss Question
Answer: Option B. -> A x M x m^2/3 x i^1/2
Answer: (b).A x M x m^2/3 x i^1/2
Question 1317. A body floating in a liquid is said to be not in equilibrium if its metacentre lies below its centre of gravity.
  1.    Agree
  2.    Disagree
  3.    Can't say
  4.    None of these
 Discuss Question
Answer: Option A. -> Agree
Answer: (a).Agree
Question 1318. When the venturimeter is inclined, then for a given flow it will show __________ reading.
  1.    same
  2.    more
  3.    less
  4.    None of these
 Discuss Question
Answer: Option A. -> same
Answer: (a).same
Question 1319. The sheet of water flowing over a notch or a weir is known as
  1.    sill or crest
  2.    nappe or vein
  3.    orifice
  4.    none of these
 Discuss Question
Answer: Option B. -> nappe or vein
Answer: (b).nappe or vein
Question 1320. The pressure of air __________ with the increase of height from the surface of the earth.
  1.    does not change
  2.    decreases
  3.    increases
  4.    None of these
 Discuss Question
Answer: Option B. -> decreases
Answer: (b).decreases

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