A temporary structure constructed to prevent water from entering an area where a permanent structure is to he constructed
ARetaining wall
BRiver training work
CWing wall
DCofferdams
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Related Questions:
The head over a "V" notch at the end of a channel is 75 cm. If an error of of 0.15cm is possible in the measurement of the head, then the percentage error in computing the discharges is
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