单项选择题

On a vessel with a single propeller，transverse force has the most effect on the vessel when the engine is put（）.

A.full ahead
B.full astern
C.half ahead
D.slow astern

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单项选择题

On a twin-screw，twin-rudder vessel，the most effective way to turn in your own water，with no way on，is to put（）.

A.one engine ahead and one engine astern，with full rudder
B.one engine ahead and one engine astern，with rudders amidships
C.both engines ahead，with full rudder
D.both engines astern，with full rudder

单项选择题

On a single-screw vessel the stern frame（）.

A.furnishes support to the rudder，propeller shaft，and transom frame
B.provides foundations for after mooring winches
C.provides foundations for the main propulsion engines
D.transfers the driving force of the propeller to the hull

单项选择题

On a ship，the possibility of a blowout makes which type of diesel engine shutdown desirable?（）

A.Overspeed trip
B.Air inlet shut-off valve
C.Water injector
D.Fuel cutoff valve