Exam Details
| Subject | Irrigation Engineering | |
| Paper | ||
| Exam / Course | Diploma in Civil Engineering (DCLE - G) | |
| Department | School of Engineering & Technology (SOET) | |
| Organization | indira gandhi national open university | |
| Position | ||
| Exam Date | December, 2016 | |
| City, State | new delhi, |
Question Paper
No. of Printed Pages: 5 IBCE-0811
DIPL(>MA IN CIVIL ENGINEERING DCLE(G) Term-End Examination . 00253 December, 2016
BCE-Q61 IRRIGATION ENGINEERING
Time: 2 hours Maximum Marks: 70
Note: Question no. 1 is compulsory. Attempt any four questions from the remaining questions. Use of scientific calculator is permitted;
1. Choose the correct answer. 7 x 2=14
Dicken's Formula can be expressed as
Qp CA314
Qp CA112
Qp =CA2
None of the above
When water is supplied from higher level to lower level by the action of gravity, then it is called
Lift Irrigation
Flood Irrigation
Perennial Irrigation
Flow Irrigation
Wheat is a common crop of the following season:
Kharif
Hot weather
Rabi
Annual
Unit of Duty D is
Hectares/Cumec
Days
Metre
Cumec
Clay is an example of
Aquifer
Aquitard
Aquiclude
Aquifuge
The process of application of water soluble solid fertilizer or liquid fertilizers through drip irrigation system is known as
Furrow
Border
Check Basin
Fertigation
The total area lying between drainage boundaries which can be irrigated by a canal system is known as
CCA
ICA
GCA
None of these
Explain the term Irrigation in brief. 2
Discuss the factors affecting run-off 4
A drainage basin having an area of 10,000 sq.m. is located in the North Indian plains. Estimate the maximum flood discharge from the basin. 3
Explain the construction of Symon's Rain Gauge with the help of a neat sketch. 5
What are the functions of Irrigation water? Write the factors on which the total water requirements of a crop depends. 8
Write the differences between Net Irrigation Requirement and Gross Irrigation Requirement with required expression. 6
4. Discuss irrigation scheduling of Rice, Pulses, Wheat and Sugarcane in detail. 10
If the rice requires about 12 em depth of water at an interval of 10 days and the base period for rice is 120 days, find out the delta for rice. 4
5. Describe with neat sketches, the direct and storage irrigation schemes. 10
Discuss the various types of lining.
6. Draw a neat sketch of Canal Structures for Flow Regulation and Control. Explain the following terms in brief: 14
Drops
Cross regulators
Distributary head regulator
Escapes
7. An irrigation stream of 27 litres per second is diverted to a check basin of size 12 m x 10 m. The water holding capacity of the soil is 14%. The average soil moisture in the crop root zone prior to applying water is 6·5%. How long should the irrigation stream be applied to the basin to replenish the root zone moisture to its field capacity, assuming no loss to deep percolation The average depth of the crop root zone is 1·2 m. The apparent specific gravity of the root zone soil is 1.5. 12
Explain the Furrow Irrigation in brief. 2
8. Write short notes on any four of the
following
Causes of Waterlogging
Types of Surface Drain
Drip Irrigation
Types of Wells
Canal Components
Classification of Irrigation Projects
DIPL(>MA IN CIVIL ENGINEERING DCLE(G) Term-End Examination . 00253 December, 2016
BCE-Q61 IRRIGATION ENGINEERING
Time: 2 hours Maximum Marks: 70
Note: Question no. 1 is compulsory. Attempt any four questions from the remaining questions. Use of scientific calculator is permitted;
1. Choose the correct answer. 7 x 2=14
Dicken's Formula can be expressed as
Qp CA314
Qp CA112
Qp =CA2
None of the above
When water is supplied from higher level to lower level by the action of gravity, then it is called
Lift Irrigation
Flood Irrigation
Perennial Irrigation
Flow Irrigation
Wheat is a common crop of the following season:
Kharif
Hot weather
Rabi
Annual
Unit of Duty D is
Hectares/Cumec
Days
Metre
Cumec
Clay is an example of
Aquifer
Aquitard
Aquiclude
Aquifuge
The process of application of water soluble solid fertilizer or liquid fertilizers through drip irrigation system is known as
Furrow
Border
Check Basin
Fertigation
The total area lying between drainage boundaries which can be irrigated by a canal system is known as
CCA
ICA
GCA
None of these
Explain the term Irrigation in brief. 2
Discuss the factors affecting run-off 4
A drainage basin having an area of 10,000 sq.m. is located in the North Indian plains. Estimate the maximum flood discharge from the basin. 3
Explain the construction of Symon's Rain Gauge with the help of a neat sketch. 5
What are the functions of Irrigation water? Write the factors on which the total water requirements of a crop depends. 8
Write the differences between Net Irrigation Requirement and Gross Irrigation Requirement with required expression. 6
4. Discuss irrigation scheduling of Rice, Pulses, Wheat and Sugarcane in detail. 10
If the rice requires about 12 em depth of water at an interval of 10 days and the base period for rice is 120 days, find out the delta for rice. 4
5. Describe with neat sketches, the direct and storage irrigation schemes. 10
Discuss the various types of lining.
6. Draw a neat sketch of Canal Structures for Flow Regulation and Control. Explain the following terms in brief: 14
Drops
Cross regulators
Distributary head regulator
Escapes
7. An irrigation stream of 27 litres per second is diverted to a check basin of size 12 m x 10 m. The water holding capacity of the soil is 14%. The average soil moisture in the crop root zone prior to applying water is 6·5%. How long should the irrigation stream be applied to the basin to replenish the root zone moisture to its field capacity, assuming no loss to deep percolation The average depth of the crop root zone is 1·2 m. The apparent specific gravity of the root zone soil is 1.5. 12
Explain the Furrow Irrigation in brief. 2
8. Write short notes on any four of the
following
Causes of Waterlogging
Types of Surface Drain
Drip Irrigation
Types of Wells
Canal Components
Classification of Irrigation Projects
Other Question Papers
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Subjects
- Construction Equipment
- Construction Management
- Construction Supervision and Building Maintenance
- Irrigation Engineering
- Prestressed Concrete
- Soil Mechanics and Foundation Engineering
- Technical Documentation
- Transportation Engineering