Fluid Mechanics and Open Channel Hydraulics Mid - II, November - 2014

1.The Orifices meter is used to measure
  • Discharge
  • Pressure
  • Velocity
  • None
Answer: A
2.The loss of Head due to sudden enlargement of pipe is given by
  • None
Answer: C
3.Model Analysis of pipes flow are based on
  • Reynolds Number
  • Froude number
  • Mach Number
  • Euler’s Number
Answer: B
4.The discharge through a V- Notch varies as
  • H1/2
  • H
  • H3/2
  • H5/2
Answer: D
5.Hydraulic jump occurs when the flow is
  • Critical
  • Sub Critical
  • Super Critical
  • None
Answer: C
6.The Cd of an orifice is always
  • Greater than Cv
  • Equal to Cv
  • Equal to Cc
  • Less than Cc
Answer: A
7.Theoretical velocity of a jet at vena contracta is
  • 2gh
Answer: D
8.For maximum discharge over a triangular notch the angle of the notch is
  • 300
  • 600
  • 900
  • 1200
Answer: C
9.A separate arrangement for the aeration of nappe is desired in
  • Triangular Notc
  • Trapezoidal Notc
  • Rectangular Notch
  • None
Answer: B
10.Manning and Chezy’s formula is valid for
  • Steady flow
  • Uniform flow
  • Non Uniform flow
  • Unsteady flow
Answer: D
11.The upper surface of the wires over water flow is known as ____________
Answer: Sill
12.Mach number is the ratio of inertia force and the ____________
Answer: Elastic Force
13.A ____________is a concrete or masonry structure in an open channel are in which the flow occurs
Answer: Weir
14.The ratio of inertia force to pressure force is known as ____________ Number
Answer: Euler’s
15.For capillary in narrow passage is ____________ model law is applied
Answer: Weber
16.The ratio of actual velocity of the jet at vena contracta to the theoretical velocity is known as ____________
Answer: Coefficient Velocity
17.Borda’s mouth piece is an ____________ mouth piece
Answer: Internal
18.If the Froude number > 1 the flow is said to be ____________ flow
Answer: Super Critical
19.A ____________ is along bent pipe to carry water from low level reservoir to high elevation or high level reservoir.
Answer: Syphon
20.An ____________ may be defined as a passage in which liquid flow with its upper surface exposed to atmosphere.
Answer: Open Channel