GTU Civil Engineering (Semester 7)
Irrigation Engineering
May 2016
Total marks: --
Total time: --
INSTRUCTIONS
(1) Assume appropriate data and state your reasons
(2) Marks are given to the right of every question
(3) Draw neat diagrams wherever necessary


1 (a) Explain (i) Culturable command area (ii) Duty and (iii) Delta
7 M
1 (b) Give difference between Kennedys and laceys theory.
7 M

2 (a) Enlist different methods of irrigation and describe
(i) check basin method and
(ii) sprinkler irrigation method
7 M
Solve any one question from Q2(b) & Q2(c)
2 (b) Describe function of (i) Escape (ii) Cross regulator and head regulator.
7 M
2 (c) The culturable command area of a water course is 1500 hectare . Intensities of irrigation of sugarcane and wheat crops is 25 % and 50 % respectively. The duties for the crops at the head of the water course are 700 hectare/cumec and 1750 hectares/cumec respectively . Find the discharge required at head of water course .
7 M

Solve any two question from Q3(a), Q3(b) & Q3(c), Q3(d)
3 (a) Describe function of (i) divide wall (ii) silt excluder (iii) undersluice portion in diversion head work.
7 M
3 (b) Describe benefit and ill effects of irrigation.
7 M
3 (c) Draw sketch of Aquaduct and syphone aquaduct . Also describe the same.
7 M
3 (d) Enlist different canal regulation structure . and explain canal fall in detail.
7 M

Solve any two question from Q4(a), Q4(b) & Q4(c), Q4(d)
4 (a) Describe Blighs theory for design of weir.
7 M
4 (b) What is water logging? how it can be prevented?
7 M
4 (c) Explain Balancing depth of canal.
7 M
4 (d) Draw cross section of canal in fully cutting and canal in full embankment.
7 M

Solve any two question from Q5(a), Q5(b) & Q5(c), Q5(d)
5 (a) Explain sarda type of fall.
7 M
5 (b) Describe different components of drip irrigation methds.
7 M
5 (c) Explain conveyance , distribution and application efficiencies.
7 M
5 (d) Describe types and benefits of lining of canal.
7 M



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