Exam Details
| Subject | design of hydraulic structures | |
| Paper | ||
| Exam / Course | pddc | |
| Department | ||
| Organization | Gujarat Technological University | |
| Position | ||
| Exam Date | November, 2017 | |
| City, State | gujarat, ahmedabad |
Question Paper
1
Seat No.: Enrolment
GUJARAT TECHNOLOGICAL UNIVERSITY
PDDC SEMESTER-VII EXAMINATION WINTER 2017
Subject Code: X70601 Date:02/11/2017
Subject Name: Design of Hydraulic Structures
Time:10:30AM TO 1:00PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
Q.1
Discuss the physical factors governing the selection of a type of dam.
07
Describe the component parts of a spillway.
07
Q.2
Enumerate different types of spillway crest gates and explain any two of them with sketches.
07
Explain the method of plotting seepage line for an earth dam with horizontal filter at downstream.
07
OR
Explain the correction to be applied for phreatic line for a dam without horizontal filter.
07
Q.3
Explain the Swedish circle method of analyzing the stability of an earth dam slopes.
07
Explain how can you check the stability of downstream slope under steady seepage with horizontal shear at the base of dam.
07
OR
Q.3
In order to compute the seepage discharge, a flow net is plotted for a homogeneous earth dam of height of 25m and free board 2.0m.
The no. of potential drops and no. of flow channels are 10 4 respectively. The dam has a horizontal filter of 30m length at the downstream end. Compute the seepage discharge per meter length of the dam if the coefficient of permeability of dam material is 3*10-4 cm/s.
07
Explain how can you check the stability of upstream slope during sudden drawdown with horizontal shear developed at the base of the dam.
07
Q.4
Describe various modes of failure of a concrete gravity dam.
07
Describe the analytical method of stability analysis of gravity dam.
07
OR
Q.4
Discuss the practical profile of a gravity dam.
07
Describe the various characteristics of hydraulic jump.
07
Q.5
How the profile of an upstream and downstream slope of an ogee spillway is decided?
07
What is stilling basin. Describe its auxiliary devices.
07
OR
Q.5
Define canal fall and describe how the location of a canal fall is decided.
07
Explain the procedure of designing impervious floor in Sarda type fall.
07
Seat No.: Enrolment
GUJARAT TECHNOLOGICAL UNIVERSITY
PDDC SEMESTER-VII EXAMINATION WINTER 2017
Subject Code: X70601 Date:02/11/2017
Subject Name: Design of Hydraulic Structures
Time:10:30AM TO 1:00PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
Q.1
Discuss the physical factors governing the selection of a type of dam.
07
Describe the component parts of a spillway.
07
Q.2
Enumerate different types of spillway crest gates and explain any two of them with sketches.
07
Explain the method of plotting seepage line for an earth dam with horizontal filter at downstream.
07
OR
Explain the correction to be applied for phreatic line for a dam without horizontal filter.
07
Q.3
Explain the Swedish circle method of analyzing the stability of an earth dam slopes.
07
Explain how can you check the stability of downstream slope under steady seepage with horizontal shear at the base of dam.
07
OR
Q.3
In order to compute the seepage discharge, a flow net is plotted for a homogeneous earth dam of height of 25m and free board 2.0m.
The no. of potential drops and no. of flow channels are 10 4 respectively. The dam has a horizontal filter of 30m length at the downstream end. Compute the seepage discharge per meter length of the dam if the coefficient of permeability of dam material is 3*10-4 cm/s.
07
Explain how can you check the stability of upstream slope during sudden drawdown with horizontal shear developed at the base of the dam.
07
Q.4
Describe various modes of failure of a concrete gravity dam.
07
Describe the analytical method of stability analysis of gravity dam.
07
OR
Q.4
Discuss the practical profile of a gravity dam.
07
Describe the various characteristics of hydraulic jump.
07
Q.5
How the profile of an upstream and downstream slope of an ogee spillway is decided?
07
What is stilling basin. Describe its auxiliary devices.
07
OR
Q.5
Define canal fall and describe how the location of a canal fall is decided.
07
Explain the procedure of designing impervious floor in Sarda type fall.
07
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