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Max. Marks: 100

Use of Khosla’s chart, Blench curve and Montague curve are permitted in the exam hall

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1192009 Pages:3

APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY
SIXTH SEMESTER B.TECH DEGREE EXAMINATION(S), DECEMBER 2019

Course Code: CE 302
Course Name: DESIGN OF HYDRAULIC STRUCTURES

PARTA

Answer any two full questions, each carries 15 marks.
Distinguish between Bligh’s theory and Khosla’s theory.
Explain the different types of aqueducts.
A channel section has to be designed for the following data. Discharge = 300
cumecs, silt factor =1, side slope 0.5:1. Also find the longitudinal slope.
What are the different types of cisterns used in falls?
Distinguish between watershed canal and contour canal
Calculate the length of waterway, regime sour depth and the total energy level at

the upstream of a vertical drop weir for the following data. Maximum flood

discharge = 2600 cumecs, H.FL before construction = 290.0m, minimum water

level =d/s bed level = 283.0m, F.S.L of canal =289.0m, allowable flux = 1.0m
and f=1.
What is balancing depth?

Two end sheet piles of length 6m and 8m are provided below an impervious floor

of 25m length. Total head created on the floor is 5m. Calculate the average
hydraulic gradient. Also find the uplift pressures at points 6, 12 and 18m from
the u/s end of the floor and find the thickness of the floor at these points using
Bligh’s creep theory. Take specific gravity of concrete as 2.25.
Explain the terms piping and uplift. How can this be controlled?
PART 13

Answer any one full question, each carries 50 marks.
Design a notch fall for the following data:
Full supply discharge = 2 cumecs
Full supply depth =0.8m
Half supply depth = 0.51m

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Duration: 4 Hours

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