The velocity in a large canal or channel measured at a depth of ___________________ gives the mean velocity using the current meter?
Correct answer: C. 0.6 depth
- A. 0.6m
- B. 0.5m
- C. 0.6 depth
- D. 0.5 depth
Explanation
In a sufficiently deep canal or channel, measuring velocity at 0.6 of the total depth below the water surface gives a practical approximation of mean velocity. This is the standard single-point current-meter method.
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