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Engine : Steam Plants - 75/811
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Which of the following methods is used to lubricate main propulsion turbine reduction gears?
A) Oil is pressure fed through internal drilled passages which force oil to the gear's periphery.
B) Oil rings in channels outside the gears dip into oil in the sump and carry it to the gear teeth.
C) Oil is sprayed through nozzles at the point of gear mesh.
D) The gears run through an open oil sump and oil is carried along on the gear teeth.
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