Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2019 Summer 8th Sem New 2180601 Design Of Hydraulic Structures Previous Question Paper
Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ?VIII(NEW) EXAMINATION ? SUMMER 2019
Subject Code:2180601 Date:13/05/2019
Subject Name:Design of Hydraulic Structures
Time:10:30 AM TO 01:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
MARKS
Q.1 (a) Explain the measures adopted to control seepage through foundation of
Earthen dam.
03
(b) Explain the function of stilling basin with a neat sketch. 04
(c) Discuss the function and design criteria of chute spillway.
07
Q.2 (a) Explain Energy dissipation works. 03
(b) Write a short note on Maintenance on hydraulic structure. 04
(c) Explain the various modes of failure and stability criteria of gravity
dams.
07
OR
(c) Enlist various methods of stability analysis of Gravity dam and explain
any one in detail.
07
Q.3 (a) Explain cavitation on Spillway. 03
(b) Define Spillway and enlist factors affecting the spillway capacity 04
(c) Why position of phreatic line is to be predicted in dam section? Also
compute seepage rate by using flow net.
07
OR
Q.3 (a) Explain Plunge pools. 03
(b) Difference between Earthen dam and Gravity dam 04
(c) Enlist and explain various factors governing selection of type of dam. 07
Q.4 (a) What would be the maximum depth of elementary profile of a dam if
the safe limit of stress on the masonry should not exceed 150 tonnes
/m
2
? Assume unit weight of masonry = 2.4.
03
(b) Explain Swedish Slip circle method. 04
(c) What do you understand by the elementary profile and a practical
profile of gravity dam? How is the limiting height of a gravity dam
calculated?
07
OR
Q.4 (a) Explain Pore Pressure. 03
(b) Discuss the functions of Dam. Classify various types of dam and write
their functions
04
(c) Compute the discharge over an ogee weir with coefficient of discharge
equal to 2.4 at a head of 2m. The length of spillway is 100m. The weir
crest is 8m above the bottom of the approach channel having the same
width as that of the spillway (consider velocity of approach).
07
Q.5 (a) Define the following terms: 1) Riprap 2) free board 3) Galleries 03
(b) Write the criteria for safe design of Earthen Dams. 04
(c) Write a short note on: (1) Features of Sardar Sarovar Dam (2) Relief
Well.
07
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1
Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ?VIII(NEW) EXAMINATION ? SUMMER 2019
Subject Code:2180601 Date:13/05/2019
Subject Name:Design of Hydraulic Structures
Time:10:30 AM TO 01:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
MARKS
Q.1 (a) Explain the measures adopted to control seepage through foundation of
Earthen dam.
03
(b) Explain the function of stilling basin with a neat sketch. 04
(c) Discuss the function and design criteria of chute spillway.
07
Q.2 (a) Explain Energy dissipation works. 03
(b) Write a short note on Maintenance on hydraulic structure. 04
(c) Explain the various modes of failure and stability criteria of gravity
dams.
07
OR
(c) Enlist various methods of stability analysis of Gravity dam and explain
any one in detail.
07
Q.3 (a) Explain cavitation on Spillway. 03
(b) Define Spillway and enlist factors affecting the spillway capacity 04
(c) Why position of phreatic line is to be predicted in dam section? Also
compute seepage rate by using flow net.
07
OR
Q.3 (a) Explain Plunge pools. 03
(b) Difference between Earthen dam and Gravity dam 04
(c) Enlist and explain various factors governing selection of type of dam. 07
Q.4 (a) What would be the maximum depth of elementary profile of a dam if
the safe limit of stress on the masonry should not exceed 150 tonnes
/m
2
? Assume unit weight of masonry = 2.4.
03
(b) Explain Swedish Slip circle method. 04
(c) What do you understand by the elementary profile and a practical
profile of gravity dam? How is the limiting height of a gravity dam
calculated?
07
OR
Q.4 (a) Explain Pore Pressure. 03
(b) Discuss the functions of Dam. Classify various types of dam and write
their functions
04
(c) Compute the discharge over an ogee weir with coefficient of discharge
equal to 2.4 at a head of 2m. The length of spillway is 100m. The weir
crest is 8m above the bottom of the approach channel having the same
width as that of the spillway (consider velocity of approach).
07
Q.5 (a) Define the following terms: 1) Riprap 2) free board 3) Galleries 03
(b) Write the criteria for safe design of Earthen Dams. 04
(c) Write a short note on: (1) Features of Sardar Sarovar Dam (2) Relief
Well.
07
2
OR
Q.5 (a) Explain the different types of Hydraulic jump with a neat sketch. 03
(b) A flow-net is plotted for homogeneous earthen dam of height 22m and
free board 2m. Number of potential drops and flow channel are 10 and
4 respectively. The dam has a horizontal filter of 30 m length at a
downstream end and the co-efficient of permeability of the dam
material is 5 x 10-
4
cm/sec. Calculate the discharge per m run of the
dam.
04
(c)
Draw the L-section of a rectangular crest Sarda type canal fall. Explain the
design features of a Sarda fall.
07
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This post was last modified on 20 February 2020