单选题The order “（）” means “Maximum maneuvering engine revolution for ahead propulsion”.A Full AheadB Half AheadC Full AsternD Half Astern

“Movement of engine no longer required.” means “______”.

A.Stop Engine

B.No Engine Revolutions

C.Stand-by Engine

D.Finished With Engine

I hereby ______ that my vessel is fitted with a rudder angle indicator and an engine revolution indicator on the bridge in such a position that the pilot may read both without having to move away from his station； and that the rudder angle indicator and engine revolution indicator are in good working condition.

A.delay

B.state

C.delete

D.contain

STCW78/95 Convention describes that _____ are laid down for the certification of engineer officers in charge of a watch in a traditionally manned engine room, or the designated engineer in a periodically unmanned engine room.

A.available minimum requirements

B.available maximum requirements

C.mandatory minimum requirements

D.mandatory maximum requirements

Cooling of engines is achieved by circulating a cooling liquid around internal ______within the engine.

A.air

B.passages

C.pipes

D.means

The order“______” means “Maximum maneuvering engine revolution for ahead propulsion.”

A.Full Ahead

B.Half Ahead

C.Full Astern

D.Half Astern