The diameter of the ram cylinder of a hydraulic press is 200mm. The stroke length of the plunger is 50mm. the effort on the plunger is 5% of the load. Calculate,

i) the volume of the liquid needed per stroke if the load has to be lifted 60mm in 30 strokes, if the slip is considered to be 0.06

ii) the diameter of the plunger

iii) the effort required on the handle to lift a load with a mass of 2 tonnes

iv) the work done by the ram if efficiency of the press is 85%