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Irrigation Engineering

Irrigation Engineering
Vertical drop fall is satisfactory for a height upto

0.5 m
3.5 m
1.5 m
5.0 m

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Irrigation Engineering
Cross regulators in main canals are provided

To increase water head upstream when a main canal is running with low supplies
To regulate water supply in the distributaries
None of these
To overflow excessive flow water

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Irrigation Engineering
Infiltration capacity

changes with time
changes with both time and location
changes with location
is a constant factor

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Irrigation Engineering
For supplying water to rabi crop, kharif crop and sugarcane, the channel is designed for a capacity equal to the greater of the water requirement of

rabi and kharif or sugarcane
rabi or kharif or sugarcane
rabi or kharif
rabi and sugarcane or kharif and sugarcane

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Irrigation Engineering
The forces, which are considered for the analysis of an elementary profile of a gravity dam under empty reservoir condition, are
i) Water pressure
ii) Self weight
iii) Uplift
iv) Pressure due to earthquake
The correct answer is

(i), (ii), (iii) and (iv)
Only (ii)
(i), (ii) and (iv)
(i), (ii) and (iii)

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Irrigation Engineering
F.S.L. of a canal at its head with respect to parent channel is kept

15 cm lower
None of these
At the same level
15 cm higher

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