Exercise: Irrigation

Questions for: Irrigation

Meandering of a river generally occurs, in
A:
rocky stage
B:
delta stage
C:
boulder stage
D:
trough stage.
Answer: D
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If Δ is the depth of water in metres, B is the number of days of base period and D is the duty in hactare/cumec, the relationship which holds good, is
A:
B:
C:
D:
Answer: D
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A deficit of sediments in flowing water may cause a river
A:
meandering type
B:
aggrading type
C:
degrading type
D:
sub-critical type.
Answer: C
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For a given discharge in a channel, Blench curves give the relationship between the loss of head (HL) and
A:
specific energy up-stream
B:
specific energy down-stream
C:
critical depth of water down-stream
D:
depth of water down-stream
Answer: B
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Water-shed line is abondened for aligning an irrigation canal if
A:
water shed forms a sharp loop
B:
canal has to take off from a river
C:
towns and villages are located on the water shed line
D:
all the above.
Answer: D
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