1. ID Number: …………………… Lab Section # …………
1- The water flow rate in a pipe is determined by use of the Venturi meter shown in
Figure. Using the information given in the figure (pipe and throat diameter are
respectively 10 cm and 6 cm) and h= 4cm, calculate the flow rate assuming
uniform flow and no losses. Expressed results in US gallon/minute (gpm) OR
liters/second (ρwater=1000kg/m3).

2. ID Number: …………………… Lab Section # …………
2- A horizontal venturi mete measures the flow of oil of specific gravity 0.9
in a 75 mm diameter pipeline. If the difference of pressure between the full
bore and throat tapings is 34.5 kN/m2 and the area ratio m is 4 calculate
the rate of flow assuming a coefficient of discharge of 0.97
Solution

3. ID Number: …………………… Lab Section # …………
3- A circular orifice 650 mm2 in area is made in the vertical side of a tank. If
the jet falls vertically through 0.5 m while moving horizontally through 1.5
m and the discharge is 0.1 m 3/min of water determine the horizontal
reaction of the jet on the tank.
Solution

4. ID Number: …………………… Lab Section # …………
4- A jet of water of 22.5 cm diameter impinges normally on a flat plate
moving at 0.6 m/s in the same direction as the jet. If the discharge is 0.14
m3/s find the force and the work done per second on the plate
Solution

5. ID Number: …………………… Lab Section # …………
5- A jet of water 25 mm in diameter moving with a velocity of 6 m/s strikes a
flat plate an angle of 30 0 to the normal to the plate. If the plate itself is
moving with a velocity of 1.5 m/s and in the direction of the normal to its
surface calculate the normal force exerted on the plate. Find also the
work done per sec and the efficiency.
Solution