Water Resources Engineering-II

Set No. 1Code No: V3204/R07

III B. Tech II Semester Regular Examinations, April/ May 201WATER RESOURCES ENGINEERING-II

(Civil Engineering)Time: 3 hours

Answer any FIVE QuestionsAll Questions carry equal marks

*****

Max Marks: 80

1. (a) What are the main causes of failure of weirs on permeable foundation, and what remedieswould you suggest to prevent them

(b) The cross section of a wear is shown in fig 1.calculate (i) uplift pressure at point Aand E, (ii) Thickness of concrete apron at point B, (iii) Exit gradient. Use Khorla’s curves.

Fig :12. (a) What is meant by canal drop? Why are canal drops constructed in a canal system?(b) Draw a neat sketch of syphon well drop and explain briefly its components.

3. What is meant by the terms “flexibility”,’ proportionality’, ‘setting’ and ‘sensitivity’ asapplied to modules. Derive equation for them and discuss relation between these terms.

4. (a)What are the different types of cross drainage works that are necessary on a canal alignment?State briefly the conditions under which each one in used.

(b)Explain the method of fixation of water way of drain in an aqueduct.

5. (a)Explain how would you determine safe yield from a reservers of a given capacity?(b)Classify various types of dams.

6. Fig (2) Show the section of gravity dams built of concrete. Calculate (neglect earthquake effect).

i. The maximum vertical stress at the heel and toe of the dam.ii. The major principal stress at the toe of the dam.iii. The intensity of shear stress on a horizontal plane near the toe.

Assume weight of concrete =2.4 tones /cu.m1 of 2

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Set No. 1Sub Code: V3204/R07

7. (a)Explain the method of plotting phereatic line for an earth dam with a horizontal filter atdownstream.(b)Explain with the help of a sketch, the components of a zoned embankment dam.

8. a) Explain with the help of a sketch, the components and working of a Tainter gate.(b)Briefly describe an ‘Ogee Spillway’.

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Set No. 2Sub Code: V3204/R07

III B. Tech II Semester Regular Examinations, April/ May 2011WATER RESOURCES ENGINEERING-II

(Civil Engineering)Time: 3 hours Max Marks: 80

Answer any FIVE QuestionsAll Questions carry equal marks

*****1. (a)Describe in brief various types of weirs. Distinguish clearly between weir and barrage.(b)Using Khosla’s curves, determine the following for the apron shown in fig (i)

Fig 1(i)Uplift pressure at points E, D, C, E1, and D1.(ii) Exist gradient Neglect the effect of thickness of the floor.

2. (a)Explain the procedure of designing Sarda type fall?(b)Write a short note on notch fall.

3. (a)What is meant by “canal regulation” and what are the different “canal regulation works”?(b)What are “modules”? What are requirement of good module?

4. (a)Give Bligh’s approximate method of determining uplift pressure under the floor of a crossdrainage work.(b)What do you understand by level crossing?

5. (a)Discuss in brief merits and demerits of various types of dam.(b)What do you understand by mass inflow curve how is it prepared.

6. (a)Design the practical profile of a gravity dam of stone masonry, given the following data:RL of base of dam =1250 mRL of H.F.L =1280 mSpecific gravity of masonry =2.4Safe compressive stress for, masonry of dam =120 t/m2

(b)Discuss in brief various modes of farlure of a gravity dam.

7. (a) Discus in brief the causes of farlure of earth dams.(b)What are the different types of earth dams that are usually adopted?

8. (a)Enumerate the different types of spillways(b)Write a note on U.S.B.R drum gate.

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Set No. 3Sub Code: V3204/R07

III B. Tech II Semester Regular Examinations, April/ May 2011WATER RESOURCES ENGINEERING-II

(Civil Engineering)Time: 3 hours Max Marks: 80

Answer any FIVE QuestionsAll Questions carry equal marks

*****1. (a)Write short note on the following (i) fish ladder,(ii)divide wall,(iii)under sluice.(b)The cross-section of weir is shown in fig1Calculate (i) uplift pressure at point A and E, (ii) Thickness of concrete apron at pointB,(iii)exit gradient. Use Khola’s curves.

Fig :12. (a)Explain the procedure of designing straight glacis fall.(b)What is’ Cistern element’ in fall.

3. What is meant by the terms “flexibility”, ’proportionality’, ‘setting’ and ‘sensitivity’ asapplied to modules .Derive equation for them and discuss relation between these terms.

4. (a)What are the different types of cross drainage works that are necessary on a canalalignment? Stat briefly the conditions under which each one in used.

(b)Explain the method of fixation of water way of drain in an aqueduct.

5. (a) Discuss with a neat sketch, the various storage zones of a dam reservoir.(b)Discuss, with illustrations the selection of type of dam.

6. (a)Explain the method of determining principal and shear –stresses in a gravity dam.(b)Give a practical profile of a low gravity dam.

7. For the earth dam of homogeneous section with a horizontal filter as shown in fig 2below, draw the top flow line. If the coefficient of permeability of the soil material usedin the dam is 5X10-4 cm/sec, find the seepage flow per unit length of dam.

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Set No. 3Sub Code: V3204/R07

8.(a)Explain with the help of a sketch, the components and working of a Tainter gate.(b)Briefly describe an ‘Ogee Spillway’

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Set No. 4Sub Code: V3204/R07

III B. Tech II Semester Regular Examinations, April/ May 2011WATER RESOURCES ENGINEERING-II

(Civil Engineering)Time: 3 hours Max Marks: 80

Answer any FIVE QuestionsAll Questions carry equal marks

*****1. (a) What do you understand by ‘slit extractor’ and ‘silt ejector’?(b)Using Khosla’s curves, determine the following for the apron shown in fig (1)

2. Explain the procedure of designing of Trapezoidal notch fall.(b)Write a short note on Montague type fall?

3. (a)Enumerate the different type of outlets which are in common use on canal projects.(b)Describe the necessity and functioning of a “Distributary head regulator “and a “crossregulator” in a canal projest.

4. (a)Give Bligh’s approximate method of determining uplift pressure under the floor of across drainage work.(b)What do you understand by level crossing?

5. (a)What do you understand by demand curve? Explain the method of calculating reservoircapacity for a specified yield, from the mass inflow curve.(b)What are the factors on which selection of site for a dam depends?

6. What do you understand by the elementary profile of a gravity dam, ?Derive expressionfor determining base width of such a dam based on (i)Stress criterion ,(II)Slidingcriterion.

7. Fig (2) shows a homogeneous earth dam. Calculate the seepage per meter length, throughthe body of the dam. Coefficient of permeability of the dam material may be taken as8X10-3cm/sec.

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Set No. 4Sub Code: V3204/R07

8. (a)Enumerate the different types of spillways.(b)Write a note U.S.B.R drum gate.

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