What kind of irrigation method uses artificial rain to irrigate the land?
A.
Sprinkler Irrigation Method
B.
Drip Irrigation Method
C.
Furrow Method
D.
Border Irrigation Method
Answer: Option A
Explanation:
In this method, water is applied to the field through a network of pipes connected to sprinklers of different types, and through these sprinklers, water comes out as artificial rain and waters the crops in the field.
What type of irrigation method is considered as the most advantageous method?
A.
Drip Irrigation Method
B.
Sprinkler Irrigation Method
C.
Furrow Method
D.
Border Flooding
Answer: Option B
Explanation:
This types of method can be used for any kind of crops, for all kinds of soils, and for widely different topographies and slopes. It can also be used in places of low or scarce availability of water, and also where water table is high. So therefore it is the most advantageous method.
With what type of mounting does sprinkler irrigation network give the best results?
A.
Revolving Sprinkler Heads
B.
Nozzles
C.
Open Pipes
D.
Pipes with holes near the crop
Answer: Option A
Explanation:
Generally in sprinkler irrigation system water flows with pressure in the pipes. So, sometimes the pressure may be low or high depending upon the water availability, and crop requirement. So, revolving sprinkler heads are mounted upon these rising pipes because these sprinklers can work under both high and low pressures.
In which type of irrigation method the entire land is not wetted?
A.
Furrow Method
B.
Free Flooding
C.
Contour Farming
D.
Basin Flooding
Answer: Option A
Explanation:
In this method only one half to one fifth to the surface of land is wetted so as to reduce the evaporation losses. In other methods, evaporation losses cannot be controlled properly.
In which irrigation method levees are provided along the contours?
A.
Check Flooding
B.
Free Flooding
C.
Contour Farming
D.
Basin Flooding
Answer: Option A
Explanation:
This method is a type of ordinary flooding except water is controlled by surroundings the plots into which is divided by low and flat leaves. These leaves are constructed along the contours and have vertical intervals of 5 to cm.