单项选择题 （） should not undertake any task which will interfere with the supervision duties relating to the main machinery and associated equipment.

单项选择题 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.

单项选择题 In some cases facilities may be provided for emergency overriding oil pressure shutdown, if this facility is used, adequate warning must be given to （）.