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Civil Engineering - Hydraulics

Exercise : Hydraulics - Section 3
21.
Uniform flow is said to occur when
size and shape of the cross-section in a particular length remain constant
size and shape of the cross-section change along a length
frictional loss in the particular length of the channel will the more than the drop in its elevation
frictional loss in the particular length of the channel, will be less than the drop in elevation.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
22.
For the most economical trapezoidal section of a channel with regards to discharge, the required condition, is
half of top width = sloping side
hydraulic depth = half the depth
perpendiculars drawn from the centre of the top width on to the bottom sloping side, are all equal
all the above.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
23.
Molecules of fluids get attracted due to
capillarity action
surface tension
adhesion
cohesion
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
24.
Cappoletti weir is a
rectangular weir whose length is kept 3 times the height of the water above sill
triangular weir whose notch angle is 90°
trapezoidal weir, whose sides slope 1 horizontal to 2 verticals
a combination of rectangular and triangular weirs.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
25.
On an inclined plane, centre of pressure is located
at the centroid
above the centroid
below the centroid
anywhere.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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