DieselShip's Online Content Library

Q9. (a) A jet of fresh water is 80 mm diameter, under a head of 54.4 m and strikes a fixed flat plate.

Find the force exerted on the plate when:

(i) the plate is perpendicular to the jet;

(ii) the plate is inclined at 17° to the axis.

(b) Oil of density 900 kg/m³ flow through a pipe from point A to point B.

At point A the diameter is 225 mm and pressure is 160 kPa. At point B, which is 2 m below, the diameter is 355 mm and pressure is 210 kPa.

Determine EACH of the following:

(i) the velocity of the oil at point A;

(ii) the mass flow rate of the oil.