Solve any one question fromQ.1(a,b) and Q.2(a,b)

1(a)
Discuss the possible social issues associated with dams.

4 M

1(b)
Enlist the types of dams based of hydraulic action and briefly explain any one type with sketch / sketches.

4 M

2(a)
State and explain four insturments used for various measurements needed with reference to safety of dams. Draw suitable sketches wherever possible / necessary.

4 M

2(b)
Enlist the types of dams based on the purpose. Explain any one type with sketch.

4 M

Solve any one question fromQ.3 and Q.4

3
A gravity dam has base width 60m with upstream face vertical and downstream face with slope 2H:3V Knowing that total vertical force above the base is 63MN, overtuning moment and resisting moment are 2.2×10

^{6}kNm; determine maximum and minimum vertical stresses induced on the foundation. Also find major principal stress at the toe of the dam. Is the dam safe against overturning?
6 M

4
State the classification of arch dams. Briefly explain the constant angle arch dam with sketch / sketches. When are the arch dams suitable?

6 M

Solve any one question fromQ.5and Q.6

5
What is meant by 'spillway'? State its purposes. Explain any one spillway with sketch.

6 M

6
Enlist various spillway gates. Give the classification of hydropower plants based on various criteria ( considerations).

6 M

Solve any one question fromQ.7(a,b,c) and Q.8(a,b,c)

7(a)
Discuss various causes or modes of failure of earthen dams. Draw relevant sketches.

4 M

7(b)
Compare Lane's and Bligh's theories of seepage with suitable sketches.

4 M

7(c)
An earthen dam of homogeneous material has top width 5m with upstream slope 3H:1V and downstream slope 2H:1V. Knowing that coefficient of permeability of the dam material is 0.6×10

i) Phreatic line for the dam, and

ii) Rate of seepage per unit length of dam. Assume various R.L.s as given below:

R.L. of deepest river bed = 175m

R.L. of top of dam = 201.5m

H.F.L. for reservoir = 197 m For calculating 'y' values, assume interval for 'x' as 15 m

^{-3}cm/s, determine:i) Phreatic line for the dam, and

ii) Rate of seepage per unit length of dam. Assume various R.L.s as given below:

R.L. of deepest river bed = 175m

R.L. of top of dam = 201.5m

H.F.L. for reservoir = 197 m For calculating 'y' values, assume interval for 'x' as 15 m

10 M

8(a)
Discuss the 'Swedish slip circle method' for examing the stability of earth slpes.

4 M

8(b)
Explain one method each for seepage control through

i) the embankments

ii) the foundations. (Relevant sketch should be drawn)

i) the embankments

ii) the foundations. (Relevant sketch should be drawn)

4 M

8(c)
Figure shows section of a barrage. R.L.s of key points and horiziontal distance are in meters. Calculate % pressure at point D

!mage

_{1}, C_{1}, D_{2}and E_{2}if pressures at E_{1}and C_{2}are 100% and 0% repectively. Neglect slope corrections.!mage

10 M

Solve any one question fromQ.9(a,b,c) and Q.10(a,b,c)

9(a)
Discuss basic three types of vanal alignments with relevant sketch/ sketches.

4 M

9(b)
State two requirements of a good canal module (outlet). State four types of canal falls and draw neat sketch of weir type of canal escape.

4 M

9(c)
Design an irrigation canal with side slopes 1H:2V to carry 40 cumes discharge. Use kennedy's theory. Assume B:D ration 2.50, critical velocity ratio (m) = 1 and Kutter's rugosity coefficient = 0.023 Assume \[s = \frac{1}{4000}\] for first trial. Take two trial.

8 M

10(a)
State two advantages and two drawbacks/ disadvantages of canal lining.

4 M

10(b)
What is the necessity of canal falls? Discuss various types of canal outlets (modules) briefly.

4 M

10(c)
Design a trapezoidal regime channel to carry a discharge of 50 cumes using Lacey's thoery. Assume side slopes 1H:2V and silt factor f = 1.10

8 M

Solve any one question fromQ.11(a,b,c,d) and Q.12(a,b,c,d)

11(a)
State the types of cross - drainage works. Explain any one C.D. work wih suitable sketch.

4 M

11(b)
On which factors the choice of C.D work depends? Briefly discuss.

4 M

11(c)
Give classification of rivers based on the topography of river basin Explain the types briefly.

4 M

11(d)
State four objectives of river training. With neat sketch explain briefly the levee (embankment) as a river training work.

4 M

12(a)
With suitable sketches, explain various types of spurs(groynes).

4 M

12(b)
Briefly explain three basic types (classes) of river training.

4 M

12(c)
Explain Aqueduct and syphon Aqueduct with sketches.

4 M

12(d)
What is meant by 'super - passage'? Explain it clearly with sketches.

4 M

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