How many liters of water in a pipe 100mm dia x10m long?

Answer 1

The volume of the pipe is [ (pi) x (Radius)2 x (length) ].

The radius of the pipe is 50 mm = 0.05 meter.

Volume = (pi) (0.05)2 (10) = 0.07854 cubic meter (rounded) = 78.54 litres.

That's the volume of the pipe. We have no way of knowing how much water

may be in it. It may be empty, or full of Spiders, etc.