A proper look-out must be kept().
A、only in fog
B、only between the hours of sunset and sunrise
C、only when entering and leaving port
D、at all times
A、only in fog
B、only between the hours of sunset and sunrise
C、only when entering and leaving port
D、at all times
A、only at night B、only during restricted visibility C、at night and during restricted visibility D、at all times
A、by sight and hearing only B、by all available means besides sight and hearing C、by all available means except sight and hearing D、by none of above means
A、station the look-out in the wheelhouse to keep a continuous watch on the radar B、secure the sounding of fog signals until a vessel closes within five miles C、station a look-out as low down and far forward as possible D、keep the radar on the shortest available range for early detection of approaching vessels