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Civil Engineering - Irrigation

Exercise : Irrigation - Section 1
26.
Pick up the correct statement from the following
In a level crossing, a crest with its top at the canal F.S.L. is provided across the drainage at its up-stream junction with canal
In a level crossing a regulator is provided across the drainage at its down-stream
In a level crossing, a cross regulator is provided on the canal below the crossing
All the above.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
27.
For the design of major hydraulic structures on the canals, the method generally preferred to, is based on
Bligh's theory
Electrical analogy method
The relaxation method
Khosla's method of independent variables.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
28.
For designing the venturi head,
width of the throat should not be less than one-third of the bed width of main canal
width of the throat should not be less than the width obtained from the formula B = Q / 1.2d3/2, where d is the difference in levels of F.S.L. and sill
minimum throat width should not be less than 60 cm
length of the throat should be 2.5 times the depth measured to F.S.L. in the main canal
all the above.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
29.
The sinuosity of a meander is the ratio of
meander length and the width of meander
meander length and half width of the river
curved length and the straight distance
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
30.
The top soil of a water logged field becomes more alkaline and infertile if its pH value is
6
8
9
10
11
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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