Engine: Motor Plants and Auxiliary Boilers

1. A Oil is sprayed through nozzles at the point of gear mesh.
2. B Oil rings in channels outside the gears dip into oil in the sump and carry it to the gear teeth.
3. C The gears run through an open oil sump and oil is carried along on the gear teeth.
4. D Oil is pressure fed through internal drilled passages which force oil to the gear's periphery.

Tip: press A-D to answer