The main propulsion main engines on the ship-docking tug to which you are assigned are fitted with turbochargers as shown in the illustration. What statement is true concerning the over-running clutch and gear-drive train as fitted to this turbocharger type? Illustration MP-CA-08

Question

Accepted Answer

The turbocharger is gear-driven from the engine under low load and starting conditions only. Under high load conditions, the turbocharger is free-wheeling and exhaust gas driven.

Answer

The turbocharger is gear-driven under all engine load and starting conditions, and as such is considered both exhaust gas and mechanically driven.

Answer

The turbocharger is free-wheeling and exhaust gas driven under all engine load and starting conditions, and mechanical drive arrangements are for emergency use only.

Answer

The turbocharger is gear-driven from the engine under high load conditions only. Under low load and starting conditions, the turbocharger is free-wheeling and exhaust gas driven.