Exercise: Hydraulics

Questions for: Hydraulics

Molecules of fluids get attracted due to
A:
capillarity action
B:
surface tension
C:
adhesion
D:
cohesion
Answer: C
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For the most economical trapezoidal section of a channel with regards to discharge, the required condition, is
A:
half of top width = sloping side
B:
hydraulic depth = half the depth
C:
D:
perpendiculars drawn from the centre of the top width on to the bottom sloping side, are all equal
Answer: E
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Uniform flow is said to occur when
A:
size and shape of the cross-section in a particular length remain constant
B:
size and shape of the cross-section change along a length
C:
frictional loss in the particular length of the channel will the more than the drop in its elevation
D:
frictional loss in the particular length of the channel, will be less than the drop in elevation.
Answer: A
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The following is not a laminar flow
A:
Flow of oil in measuring instruments
B:
Flow in beds in ground water
C:
Rise of water in plants through roots
D:
Flow of blood in the arteries of human body
Answer: E
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The best side slope for most economical trapezoidal section, is
A:
30°
B:
45°
C:
60°
D:
None of these.
Answer: C
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