CE1353 Irrigation Engineering B.E Question Bank : kings.ac.in

Name of the College : Kings College of Engineering
University : Anna University Chennai
Department : Civil Engineering
Subject Code/Name : CE 1353 Irrigation Engineering
Year : III
Semester : VI
Degree : B.E
Website : kings.ac.in
Document Type : Question Bank

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Kings Irrigation Engineering Question Bank

UNIT I

Introduction :
Part A :
1) Define irrigation ? :
Irrigation is defined as the science of artificial application of water to the land in accordance with the crop requirements.

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2) What are the necessity of irrigation ? :
1.Inadequate rainfall
2.Increasing yield of crops
3.Growing perennial crops
4.Uneven distribution of rainfall.

3) What are the advantages of irrigation? :
1.Increase in food production
2.Optimum benefits
3.General prosperity
4.Afforestation.

4) What are the disadvantages of irrigation? :
1.Over irrigation may lead to water logging
2.It may reduce crop yield
3.It is expensive and complex.

5) What are the types of irrigation? :
1.Surface irrigation
2.Sub-surface irrigation.

6) What are the techniques of water distribution in the farms? :
1.Free flooding
2.Border flooding
3.Check flooding
4.Basin flooding, furrow irrigation method, drip irrigation method.

7) What are the types of sprinkler system? :
1.Permanent system
2.Semi-permanent system
3.Portable system

8)What are the advantages of sprinkler irrigation? :
1.Land levelling is not required
2.Fertilisers can be uniformly applied
3.It is less labour oriented

9) What are the limitations of sprinkler irrigation? :
1.Initial cost of the system is very high
2.It requires larger electrical power
3.High wind may distort sprinkler pattern

10) What is arid region? :
The area where irrigation is must for agriculture is called arid region

11) What is semi-arid region? :
The area in which inferior crops can be grown without irrigation

12) What is crop period? :
The time period that elapses from the instant of its sowing to the instant of its harvesting is called crop period.

13) What is base period? :
The time between the first watering of a crop at the time of its sowing to its last watering before harvesting is called the base period

14) What is rotation period? :
The time interval between two such consecutive watering is called frequency irrigation.

15) Define duty of water? :
It is the relationship between the volume of water and the area of crops it matures is called duty of water.

16) Define delta of a crop? :
Each crop requires a certain amount of water after a certain fixed interval of time, through its period of growth is called delta of a crop

17) What are the factors on which duty depends? :
1.Type of crop
2.Climate and seasons
3.Useful rainfall
4.Type of soil
5.Efficiency of cultivation method

18) What are kharif crops? :
The kharif crops are rice,bajra,jawar,maize,cotton,tobacco, groundnut,etc.

19) What are rabi crops? :
Rabi crops are wheat,barley,gram,linseed,mustard,potatoes,etc

20) Define irrigation efficiency? :
It is the efficiency of water output to the water input,and is usually expressed as percentage.

21) What is called effective rainfall? :
Precipitation falling during the growing period of a crop that is available to meet the evapo-transpiration needs of the crop, is called effective rainfall.

PART B
1) What are the merits and demerits of irrigation?
2) What are the factors affecting duty?
3) Briefly explain about irrigation efficiencies?
4) What are the consumptive uses of water?
5) Briefly explain about planning and development of irrigation project?

UNIT II

Irrigation Methods :
Part A :
1) List some types of irrigation ? Canal irrigation,lift irrigation,tank irrigation,etc
2) What are the necessity of irrigation ?
1.Inadequate rainfall
2.Increasing yield of crops
3.Growing perennial crops
4.Uneven distribution of rainfall.

3) What are the advantages of irrigation?
1.Increase in food production
2.Optimum benefits
3.General prosperity
4.Afforestation.

4) What are the disadvantages of irrigation?
1.Over irrigation may lead to water logging
2.It may reduce cropyield
3.It is expensive and complex.

5) What are the types of irrigation?
1.Surface irrigation
2.Sub-surface irrigation.

PART B
1.Briefly explain about canal irrigation?
2.Briefly explain about lift irrigation?
3.Briefly explain about tank irrigation?
4.Briefly explain about flooding methods?
5.Briefly explain about sprinkler irrigation methods?

UNIT III

Diversion And Impounding Structures :
Part A :
1) What is meant by canal escape?
Canal escapes are the safety valves of canals &must be provided at regular intervals depending upon the importance of channel& availability of suitable drainage for the disposal of the exposed water.

2) Define base period?
The time period that elapses from the instant of sowing to instant of harvesting is called crop or base period.

3) State diff types of sprinkler system.
1.Permanent system
2.Semi-permanent system
3.Portable system

4) State various kinds of dams.
1.Earth dams
2.Rock fill dams
3.Solid masonry gravity dams
4.Hollow ” ” ” ”
5.Timber dams
6.Steel dams
7.Arch dams

5)State diff types of spillways.
1.Straight drop spillway
2.Ogee spillway
3.Trough spillway
4.Side channel spillway
5.Shaft spillway
6.Syphon spillway

PART B
1.What are the factors affecting location and types of dams?
2.Briefly explain about tanks,sluices,and wiers?
3.What are types of dams and dam arches?
4.What are forces acting on a dam?
5.Explain the design features of cross drainage works?