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Total No. of Questions : 09B.Tech.(CE) (2012 to 2017) (Sem.-7,8)
HYDROLOGY AND DAMS
Subject Code : BTCE-817
M.Code : 71876
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Time : 3 Hrs. Max. Marks : 60INSTRUCTIONS TO CANDIDATES :
- SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks each.
- SECTION-B contains FIVE questions carrying FIVE marks each and students have to attempt any FOUR questions.
- SECTION-C contains THREE questions carrying TEN marks each and students have to attempt any TWO questions.
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SECTION-A
Q1. Answer briefly :
- Which type of recording raingauge does not produce the mass curve of precipitation as record?
- What are apparatus available to measure the evaporation?
- Write the expression for the determination of peak discharge of a unit hydrograph according to Snyder’s method:
- Calculate the Gumbel’s reduced variate for a return period of 100 years.
- Define Isohyet.
- Write the equation for water budget method for determination of lake evaporation.
- List the different types of buttress dam.
- What is the function of drainage gallery in a gravity dam?
- Draw a neat sketch of an earth dam showing the rock toe component.
- What is the necessity of providing spillway in a dam?
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SECTION-B
Q2. What are the different methods available for determination of average rainfall over a catchment due to a storm? What are their merits and demerits?
Q3. What are the limitations of flood frequency studies?
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Q4. What are the factors affecting the infiltration process? Discuss their role in determining the flood hydrograph due to a storm.
Q5. Derive the value of best central angle for constant angle layout of an arch dam.
Q6. Explain the different types of earth dam with neat sketch.
SECTION-C
Q7. The ordinates of 2-hr unit hydrograph (UH) are given below. Determine the ordinates of an S-curve hydrograph and using this determine the ordinates of 4-hr unit hydrograph.
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| Time (hr) | 0 | 2 | 4 | 6 | 8 | 10 |
|---|---|---|---|---|---|---|
| 2-hr UH ordinate (m³/s) | 0 | 25 | 100 | 160 | 190 | 170 |
| Time (hr) | 12 | 14 | 16 | 18 | 20 | 22 |
|---|---|---|---|---|---|---|
| 2-hr UH ordinate (m³/s) | 110 | 70 | 30 | 20 | 6 | 0 |
Q8. How the force due to earthquake has effect on the stability of a gravity dam? Analyse critically with neat sketch regarding the earthquake force on gravity dam with respect to its magnitude, direction and location.
Q9. How would you compute the discharge passing over an ogee spillway? What are the various factors affecting the coefficient of discharge in the discharge equation? Explain.
NOTE : Disclosure of Identity by writing Mobile No. or Making of passing request on any page of Answer Sheet will lead to UMC against the Student.
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This download link is referred from the post: PTU B.Tech Question Papers 2020 March (All Branches)