The temporary all round enclosure which keeps the water away from the working area by using vertical barriers is called-
Coffer dam
A structure specifically designed for this purpose—creating a dry working environment by excluding water temporarily—is known as a coffer dam (sometimes spelled cofferdam). Therefore, the only structure among the options that fits the description of a temporary all-round enclosure to keep water away from a working area by using vertical barriers is a coffer dam.
Sequentially arrange the following steps which are involved in surveying to build an irrigation structure.
A. Reconnaissance survey
B. Preliminary survey
C. Examine the water availability
D. Final location survey
E. Final survey report
A drop in canal bed is generally provided, if
________ is a kind of passage to allow water from upstream to downstream of a dam which has flood gates to control the flow.
In Gravity dam, the factor of safety against overturning should not be less than
For the upstream face of an earthen dam, the most adverse condition for stability of slope is: