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Total Questions : 3147 | Page 138 of 315 pages
Question 1371. The value of coefficient of discharge is __________ the value of coefficient of velocity.
  1.    less than
  2.    same as
  3.    more than
  4.    None of these
 Discuss Question
Answer: Option A. -> less than
Answer: (a).less than
Question 1372. The hydraulic gradient line lies over the centre line of the pipe by an amount equal to the
  1.    pressure head
  2.    velocity head
  3.    pressure head + velocity head
  4.    pressure head - velocity head
 Discuss Question
Answer: Option A. -> pressure head
Answer: (a).pressure head
Question 1373. The flow in a pipe or channel is said to be non-uniform when
  1.    the liquid particles at all sections have the same velocities
  2.    the liquid particles at different sections have different velocities
  3.    the quantity of liquid flowing per second is constant
  4.    each liquid particle has a definite path
 Discuss Question
Answer: Option B. -> the liquid particles at different sections have different velocities
Answer: (b).the liquid particles at different sections have different velocities
Question 1374. The pressure of a liquid measured with the help of a piezometer tube is
  1.    vacuum pressure
  2.    gauge pressure
  3.    absolute pressure
  4.    atmospheric pressure
 Discuss Question
Answer: Option B. -> gauge pressure
Answer: (b).gauge pressure
Question 1375. When the water level on the downstream side of a weir is above the top surface of a weir, the weir is known as
  1.    narrow-crested weir
  2.    broad-crested weir
  3.    Ogee weir
  4.    submerged weir
 Discuss Question
Answer: Option D. -> submerged weir
Answer: (d).submerged weir
Question 1376. The ratio of the inertia force to the viscous force is called
  1.    Reynold's number
  2.    Froude's number
  3.    Weber's number
  4.    Euler's number
 Discuss Question
Answer: Option A. -> Reynold's number
Answer: (a).Reynold's number
Question 1377. The absolute pressure is equal to
  1.    gauge pressure + atmospheric pressure
  2.    gauge pressure - atmospheric pressure
  3.    atmospheric pressure - gauge pressure
  4.    gauge pressure - vacuum pressure
 Discuss Question
Answer: Option A. -> gauge pressure + atmospheric pressure
Answer: (a).gauge pressure + atmospheric pressure
Question 1378. When the pressure intensity at a point is more than the local atmospheric pressure, then the difference of these two pressures is called
  1.    gauge pressure
  2.    absolute pressure
  3.    positive gauge pressure
  4.    vacuum pressure
 Discuss Question
Answer: Option C. -> positive gauge pressure
Answer: (c).positive gauge pressure
Question 1379. The hammer blow in pipes occurs when
  1.    there is excessive leakage in the pipe
  2.    the pipe bursts under high pressure of fluid
  3.    the flow of fluid through the pipe is suddenly brought to rest by closing of the valve
  4.    the flow of fluid through the pipe is gradually brought to rest by closing of the valve
 Discuss Question
Answer: Option C. -> the flow of fluid through the pipe is suddenly brought to rest by closing of the valve
Answer: (c).the flow of fluid through the pipe is suddenly brought to rest by closing of the valve
Question 1380. A flow whose streamline is represented by a straight line, is called __________ dimensional flow.
  1.    one
  2.    two
  3.    three
  4.    four
 Discuss Question
Answer: Option A. -> one
Answer: (a).one

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