۸ 03000CE302052001 Pages: 3

Reg No.: Name:
APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY

Sixth semester B.Tech examinations (S), September 2020

Course Code: CE302
Course Name: DESIGN OF HYDRAULIC STRUCTURES
Max. Marks: 100 Duration: 4 Hours
Use of Khosla’s charts are permitted in the exam hall

Assume suitable data wherever necessary

PARTA
Answer any two full questions, each carries 15 marks. Marks
1 ஐ Explain the Khosla’s theory of independent variables. (6)
b) Explain the components of unlined canal sections with sketches. (5)
c) Explain the causes of failure of weirs on permeable soils. (4)
2 a) A hydraulic structure built on fine sand has the following details: (6)

Total length of the floor = 29 m, a weir at 6 m from 0/6 end, effective head of
water 4 m, sheet pile at u/s end 5 m deep, sheet pile at d/s end 6 m deep,
intermediate piles of 3 m depth at 12 m from u/s end. Determine: a) Average
hydraulic gradient, b) Uplift pressures at points A = 6 m, and 8 = 20 m from
upstream end and corresponding thicknesses of floor using Bligh’s theory.
Specific gravity of floor material is 2.24.

b) Compare Kennedy’s theory and Lacey’s theory for design of canals through (4)
alluvial soils.

c) Explain the different types of canal falls (5)

3 2) Using Lacey’s theory, design a regime channel for a discharge of 43 cumecs, (6)

side slopes 1൪: 1 and silt factor 1.1.

b) Explain the different types of aqueducts. (4)
c) What are the general considerations for canal alignment? (5)
PART 0

Answer any one full question, each carries 50 marks.

4 9) Design a suitable cross drainage work, for the following data at the crossing ofa (25)

canal and a drainage.

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