Discussion :: GATE Agricultural
- The gridiron pipe drainage system is more economical than the herringbone pipe drainage system because
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A.
it is adopted in the fields which do not require complete drainage
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B.
the number of main or sub-main lines is reduced
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C.
the number of junctions and the double-drained area are reduced
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D.
it has only main or sub-main lines
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Answer : Option C
Explanation :
-NA-
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