单项选择题
A.The testing of the internal combustion engine driven emergency generators at least once each month the vessel is navigated
B.The testing of storage batteries for emergency lighting and power systems once each 6 months the vessel is navigated
C.The actual draft when the vessel arrives in salt water after departing a port
D.The testing of the line-throwing appliance once every 3 months
单项选择题 （）of the following statements is INCORRECT regarding a fire and boat drill on board your cargo vessel.
单项选择题 A journal kept by the officer of the watch in which day to day happenings are recorded regarding the deck department is the（）.
单项选择题 All events relating to the voyage，such as ship’s position，speed and details of the weather，are recorded in（）.