Maintenance work on high-pressure hydraulic systems requires special precautions. a small leak can result in a high-speedjet of hydraulic fluid that can penetrate the skin and cause serious injury (therefore troubleshooters are cautioned to use apiece of paper or cardboard, nota finger, to search for leaks). calculate and plot the jet speed of a leak versus systempressure, for pressures up to 40 mpa gage. explain how a high-speed jet of hydraulic fluid can cause injury.

Asimple speed reducer is composed of 2 spur gears. the pinion gear has a pitch diameter of 0.75" and 36 teeth while the driven gear has a pitch diameter of 4.0" and 192 teeth. a)-what is the diametral pitch of each gear? b)-if an electric motor rotating ccw at 3000 rpm is coupled to the pinion, what is the rotational speed of the driven gear? c)-if the torque delivered to the pinion is 1 n-m, what is the torque on the driven gear? d)-what is the power transmitted by the gear train?