1. Find the pressure head in meter of water that corresponds to a pressure of 340 kPa (gage). Density of water is 1000 kg/m3. 2. A simple lifting jack has a pump piston 12 mm diameter and a load piston 60 mm diameter. Calculate the force needed on the pumping piston to raise a load of 8 kN. Let the leares Al and the large piston as A2 The fece en the salles Fland on the large pistons F2. The presse is the same for both to so From this the force amplification Note the seat the same as the damer ratio. If dies are D and D then dhe to becomes =FL/AL= F2/A2 1 XRVI 1073 Jadw 1. Find the pressure head in meter of water that corresponds to a pressure of 340 kPa (gage). Density of water is 1000 kg/m3. 2. A simple lifting jack has a pump piston 12 mm diameter and a load piston 60 mm diameter. Calculate the force needed on the pumping piston to raise a load of 8 kN. Let the leares Al and the large piston as A2 The fece en the salles Fland on the large pistons F2. The presse is the same for both to so From this the force amplification Note the seat the same as the damer ratio. If dies are D and D then dhe to becomes =FL/AL= F2/A2 1 XRVI 1073 Jadw