17.a
17.b

18.a
18.b

19.a

19.b

20.a

20.b

0800CET203122001

Module 4
Obtain the condition for maximum velocity of flow through circular channels
Determine the dimensions of a most efficient trapezoidal section to convey 10
m*/sec at a velocity of 1.25 m/s.
Obtain the discharge equation of a Cipoletti weir. State its advantages.
A weir of 25 m long is divided into 10 equal bays by vertical posts which of
50 cm width. Find the discharge over the weir, if the head over the crest is 1.5

m and the velocity of approach is 2 m/s.

Module 5
Stating the assumptions underlying it, derive the dynamic equation gradually
varied flow.
A rectangular channel 2 m wide carries a discharge of 6 073/5, Calculate the
critical depth and specific energy at critical depth.
A very wide rectangular channel carries a discharge of 8 cumecs per m width.
The channel has a bed slope of 0.004 and Manning’s roughness coefficient
0.015. Find the distance to a section were water depth is 0.9 m using direct
step method employing single step.
A hydraulic jump occurs in a rectangular channel and depths of flow before
and after the jump are 0.5 m and 3. Calculate the critical depth and energy lost

in the hydraulic jump.

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