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Civil Engineering - Irrigation

Exercise : Irrigation - Section 1
21.
For the stability of a structure against seepage pressure according to Khosla's creep theory, the critical gradient is
zero
0.25
0.50
0.75
1.00
Answer: Option
Explanation:
No answer description is available. Let's discuss.
22.
Pick up the correct statement from the following
Approach of the water line in a flumed channel section should not be steeper than
Departure of the water line from a flumed channel section should not be steeper than 30°
Approach of the water line should not be steeper than 30° and departure line not steeper than in a flumed channel section
Approach and departure of the water line in a flumed channel section, should not be steeper than
Answer: Option
Explanation:
No answer description is available. Let's discuss.
23.
Groynes are generally built
perpendicular to the bank
inclined up stream up to 30°
inclined down stream upto 30°
all the above.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
24.
The top of the capillary zone
lies below the water table at every point
lies above the water table at every point
coincides the water table at every point
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
25.
Pick up the incorrect statement from the following. Culturable commanded area is the gross area of an irrigation canal system less
populated area
alkaline area
forest area
fallow land.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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