A spillway model constructed to a scale of 1 : 4 gives a discharge of 10 m³/sec. The discharge from the prototype would be m³/s.

What size standard orifice is required to discharge 0.016 m /s of water under a head of 8.69 m?

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23.10* A sewer pipe must be laid from a starting invert elevation of 78458ft at station 9+25 to an ending invert elevation 78248ft at station 12+75. Determine the uniform grade needed, and calculate invert elevations at each 50-ft station.