A casualty report of an intentional grounding of a ship is required under what condition?（）

A chart projection depicting the poles and a small area on either side of a connecting meridian，that is sometimes used for star charts，is the（）.

A “spring line” is（）.

A vessel’s quarter is that section which is（）.

A “reaching” course is one in which the wind（）.

A buoy with a composite group-flashing light indicates a(n)（）.

A crew member reports that the high-pressure alarm light of a low-pressure CO2 fixed fire extinguishing system is illuminated. The most probable cause of this condition would be that（）.

A chart with a natural scale of 1:160，000 is classified as a（）.

A celestial body will cross the prime vertical circle when the latitude is numerically（）.

A “Mediterranean moor” should be used when（）.