06: Two cylinders A and B are connected by a piston of two different diameters as shown in figure below. Cylinder B contains a gas, while cylinder A contains oil that is pumped up to a pressure of (300 KPa) by a hydraulic pump. The mass of the piston is (10 kg). Calculate the gas pressure in cylinder B? Ans. (3.5 MPa) A Oil pump 300kPa Dia=100mm 10kg DiaB=25mm B Piston Po=100KPa

Question 7

P1 B C P2 A A liquid flows through a piping system from P1 to the top of a structure at P2 The entire piping system is 2 sch 40 pipe The piping system is intended to provide liquid at a rate of 80 gpm while maintaining a P2 pressure of 36 psig. The flowrate at P1 and P2 are the same. (ie.. there is no splitting or branching of the flow) The friction factor, f (fanning), can be assumed to be 0.007

A pressurized tank of water has a 10-cm diameter orifice at the side bottom corner of the tank, where the water is being discharge to the atmosphere. The water level is 3 meters above the orifice. The tank air pressure above the water level is 300 kPa. Neglecting frictional effects, the initial discharge rate of water in kilograms per second (kg/s) from the tank is