1. In the wide part of a Venturi tube, there is a diameter of 68 cm and a pressure of 350 kPa. In the narrowing of the tube the diameter is reduced to the half and there is a pressure of 92 000 N/m2.
a) What is the speed of the water flowing through the pipe?
b) What is the rate of flow?
2. The wide part of a Venturi tube has a diameter of 6 inches (1 in= 2.54 cm) and a pressure of 150 kPa. In the section that connects to a pipe, the diameter is reduced to one-third and a pressure of 135.06 mm Hg is recorded.
a) What is the speed of the gasoline (ρ = 700 kg/m3) flowing through the pipe?
b) What is the rate of flow?
3. A 0.0275 cm2 crack is made by a stone in a water tank. Determine the speed and the amount of water in liters that escapes in 20 minutes from the crack if the water tank is 1.8 m above.
4. Calculate the time in minutes that it will take to fill a pool which capacity is 7000 liters if the rate of flow is 30 x 103 cm3/s.
5. A water tank is 16 cm above the faucet. Determine the speed of the water when the faucet is completely open and the time needed to fill a 12-liter bucket. Consider that the faucet has an output area of 2.85 x10 – 4 m2
6. The pipe of a building, on the ground floor, carries water at a speed of 5 m/s and a gauge pressure of 375kPa,What is the speed of the moving water in the pipe 2.8 m above if the gauge pressure is 362 475Pa?
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