The surface velocity at any vertical section of a stream is (A) Not of any use in stream flow measurement (B) Smaller than the mean velocity in that vertical Larger than the mean velocity in that vertical section (D) Equal to the velocity in that vertical at 0.6 times the depth

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Q: O Simple O Broken-Back O Reverse O Compound

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Highway Drainage

Highway drainage is the process of extracting and regulating the excess surface water on the pavement by giving the desired slope. The construction of a highway drain helps to divert the water present on the surface, and sub-grade by the means of slope. Highway drainage systems are a necessary part of smooth functioning of traffic, since the highway drainage systems provide proper disposal of unwanted substances from the highways.