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MCQs

Total Questions : 3147 | Page 131 of 315 pages
Question 1301. A vertical wall is subjected to a pressure due to one kind of liquid, on one of its sides. Which of the following statement is correct?
  1.    The pressure on the wall at the liquid level is minimum.
  2.    The pressure on the bottom of the wall is maximum.
  3.    The pressure on the wall at the liquid level is zero, and on the bottom of the wall is maximum
  4.    The pressure on the bottom of the wall is zero.
 Discuss Question
Answer: Option C. -> The pressure on the wall at the liquid level is zero, and on the bottom of the wall is maximum
Answer: (c).The pressure on the wall at the liquid level is zero, and on the bottom of the wall is maximum
Question 1302. Water is a __________ fluid.
  1.    real
  2.    ideal
  3.    newtonian
  4.    non-newtonian
 Discuss Question
Answer: Option C. -> newtonian
Answer: (c).newtonian
Question 1303. The factional resistance of a pipe varies approximately with __________ of the liquid.
  1.    pressure
  2.    velocity
  3.    square of velocity
  4.    cube of velocity
 Discuss Question
Answer: Option C. -> square of velocity
Answer: (c).square of velocity
Question 1304. The kinematic viscosity of an oil (in stokes) whose specific gravity is 0.95 and viscosity 0.011 poise, is
  1.    0.0116 stoke
  2.    0.116 stoke
  3.    0.0611 stoke
  4.    0.611 stoke
 Discuss Question
Answer: Option A. -> 0.0116 stoke
Answer: (a).0.0116 stoke
Question 1305. The property of a liquid which controls its rate of flow is called viscosity.
  1.    True
  2.    False
  3.    Can't say
  4.    None of these
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 1306. The hydraulic gradient line is always parallel to the centre line of the pipe.
  1.    Correct
  2.    Incorrect
  3.    Can't say
  4.    None of these
 Discuss Question
Answer: Option B. -> Incorrect
Answer: (b).Incorrect
Question 1307. The surface tension of mercury at normal temperature is __________ that of water.
  1.    same as
  2.    lower than
  3.    higher than
  4.    None of these
 Discuss Question
Answer: Option C. -> higher than
Answer: (c).higher than
Question 1308. The pressure intensity in kN/m² (or kPa) at any point in a liquid is (where w = Specific weight of liquid, and h = Depth of liquid from the surface)
  1.    w
  2.    wh
  3.    w/h
  4.    h/w
 Discuss Question
Answer: Option B. -> wh
Answer: (b).wh
Question 1309. The celerity (velocity) of a pressure wave in a fluid is given by (where K = Bulk modulus, and ρ = Density of the fluid)
  1.    K.ρ
  2.    K/ρ
  3.    ρ/K
  4.    K.ρ
 Discuss Question
Answer: Option B. -> K/ρ
Answer: (b).K/ρ
Question 1310. A flow through a long pipe at decreasing rate is called __________ uniform flow.
  1.    steady
  2.    unsteady
  3.    Can't say
  4.    None of these
 Discuss Question
Answer: Option B. -> unsteady
Answer: (b).unsteady

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