Answer:
The flow velocity reduces to 0.72 m/s
Explanation:
According to the equation of continuity discharge in the channel should remain same
Thus we have

For a rectangular channel we have 
Applying values in the continuity equation and since the width of the channel remains constant 3.0 m we have
Answer:
Concentration factor will be 1.2
So option (C) will be correct answer
Explanation:
We have given outer diameter D = 1.25 in
And inner diameter d = 1 in and fillet ratio r = 0.2 in
So
ratio will be 
And
ratio will be 
Now from the graph in shaft vs torsion the value of concentration factor will be 1.2
So concentration factor will be 1.2
So option (C) will be correct answer.
Answer:
Explanation:
We can solve Von Karman momentum integral equation as seen below using following in the attached file