6 IRRIGATION ENGINEERING INTRODUCTION JKSSB JE CIVIL DEC 2022
JKSSB JE CIVIL PREVIOUS PAPERS
JAL SHAKTI
DEC 2022
(IRRIGATION ENGINEERING)
Q.NO.1. In the navigation canal the velocity of the flowing water should be ………...
A. High
B. Very high
C. Small
D. Medium
Ans. C
Q.NO.2. Which of the following seasons has the highest rate of free water evaporation?
A. Autumn
B. Winter
C. Summer
D. Spring
Ans. C
Q.NO.3. Groundwater table may be lowered by method
A. Electro-osmosis method
B. Vacuum method
C. Well point system
D. All of these
Ans. D
Q.NO.5. What type of irrigation system needs mechanical support to supply water for irrigation?
A. Combined system
B. Storage irrigation
C. List irrigation
D. Perennial irrigation
Ans. C
Q.NO.6. Which type of canal is not provided with any headwork for diversion of river water?
A. Permanent canal
B. Feeder canal
C. Perennial canal
D. Inundation canal
Ans. D
Q.NO.7. If the water losses are more, the output and efficiency is ……….
A. More
B. Less
C. Same
D. None of these
Ans. B
Q.NO.8. When used as an example, what aspect of the canal creates waterlogging?
A. Seepage of water through the canals
B. Seepage of water from the high lands
C. Over and intensive irrigation
D. Excessive rains
Ans. A
Q.NO.9. The element that worries about the proliferation of weeds is:
A. Seepage of water through the canals
B. Submergence due to floods
C. Over and intensive irrigation
D. Excessive rains
Ans. B
Q.NO.10. Which of the following options best define water conveyance efficiency?
A. The ratio of the quantity of water delivered to the field and quantity of water pumped into the canal
B. The ratio of water stored in the root zone and the water delivered to the field
C. The ratio of water used beneficially and the water delivered to the field
D. The ratio of water stored in the root zone and the water needed before irrigation
Ans A
Q.NO.11. which of the following are the devices used for changing the water level in a canal or a river for navigation.
A. Liquid gate
B. Canal gate
C. Lock gates
D. River gate
Ans. C
Q.NO.12. Which of the following type of canal is well traded and is provided with permanent regulation and distribution works?
A. Inundation canals
B. Permanent canals
C. Alluvial canals
D. Navigation canals
Ans. B
Q.NO.13. What is the unit of rate of rainfall?
A. Kilometres
B. Centimetres
C. Millimetres
D. Meters
Ans. C
Q.NO.14. The total area of longitudinal bars in a column section must not be less than………. of the gross column area.
A. 0.4%
B. 0.5%
C. 0.8%
D. 1.0%
Ans. C
Q.NO.15. Which type of irrigation system is based merely on navigation?
A. Flow irrigation
B. Direct irrigation
C. Lift irrigation
D. Storage irrigation
Ans. A
Q.NO.16. What is the time period between two consecutive watering called?
A. Rotation period
B. Kor period
C. Crop period
D. Base period
Ans. A
Q.NO.17. According to Kennedy the silting action in channel is due to?
A. Type of flow in the channel
B. Slope of the bed
C. Area of channel
D. Generation of eddies
Ans. D
Q.NO.18. The most essential soil moisture for plant growth is ………………...
A. Capillary water
B. Hygroscopic water
C. Gravitational water
D. Permanent wilting point
Ans. A
A. 15%
B. 85%
C. 66.66%
D. 93%
Ans. D
Q.NO.24. Measurement of intensity of rainfall by which instrument?
A. Hydrometer
B. Continuous recording gauge
C. Seismometer
D. Anemometer
Ans. B
Q.NO.25. The minimum furrow grade to assure surface drainage is:
A. 0.09%
B. 0.02%
C. 0.07%
D. 0.05%
Ans. D
Q.NO.26. Among of the following which is the good quality of an irrigation method?
A. Increase yield
B. Drainage troubles
C. Leached fertilizers
D. Soil erosion
Ans. A
Q.NO.27. The element that causes both intermittent and ongoing waterlogging is
A. Submergence due to floods
B. Impervious obstruction
C. Flat topography
D. Excessive rains
Ans. D
Q.NO.28. How many types of rain gages?
A. 4
B. 2
C. 5
D. 3
Ans. B
Q.NO.29. Find the delta of the crop if it is said that a particular type of crop requires a depth of 6 cm of water every 24 days and the crop period is 168 days
A. 42 cm
B. 50 cm
C. 20 cm
D. 95 cm
Ans. A
Q.NO.30. Calculate conveyance efficiency. The quantity of water pumped into the farm distribution system is 2 cumec. 1.6 cumec is delivered to the turn out which is at a distance of 1km from the well
A. 80 %
B. 20 %
C. 50 %
D. 60 %
Ans. A
Q.NO.31. What type of irrigation system is irrigation from wells?
A. Lift irrigation
B. Flow irrigation
C. Direct irrigation
D. Tank irrigation
Ans. A
Q.NO.32. Diversion scheme comes under which type of irrigation system?
A. Direct irrigation
B. Storage irrigation
C. Flow irrigation
D. Inundation irrigation
Ans. A