The pinion of an auxiliary diesel-electric starting motor normally engages the flywheel ring gear by means of a/an __________.

Correct Answer: Option D — Bendix drive or similar mechanism

Electric starting motors on auxiliary diesels rely on a Bendix drive mechanism, utilizing an inertia-controlled pinion gear that automatically engages the flywheel ring gear during cranking and instantly disengages upon engine ignition to prevent overspeed damage.