Exercise: Hydraulics

Questions for: Hydraulics

For a most economical trapezoidal open channel, the half of the top width must be equal to
A:
the bed width
B:
one sloping side
C:
the depth of flow
D:
None of these.
Answer: B
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To ensure that water does not rise more than 100 cm above the crest, for a discharge of 5.00 m3/sec, the length of water will be
A:
2.48 m
B:
2.49 m
C:
2.50 m
D:
2.51 m.
Answer: B
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The length of hydraulic jump is roughly
A:
2 to 3 times its height
B:
3 to 5 times its height
C:
5 to 7 times its height
D:
None of these.
Answer: C
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Frictional loss of head includes the loss of energy due to
A:
viscosity
B:
turbulence
C:
both (a) and (b)
D:
none of these.
Answer: D
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Discharge through a totally submerged orifice, is directly proportional to
A:
difference in elevation of water surfaces
B:
square root of the difference in elevation of water surface
C:
square root of the opening
D:
reciprocal of the area of the opening
Answer: B
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