You are entering port and have been instructed to anchor,as your berth is not yet available.You are on a SW’ly heading,preparing to drop anchor,when you observe the range lights as shown on your starboard beam.You should().
A:not drop the anchor until the lights are in line
B:ensure your ship will NOT block the channel or obstruct the range while at anchor
C:drop the anchor immediately as the range lights mark an area free of obstructions
D:drop the anchor immediately as a change in the position of the range lights will be an indication of dragging anchor
出自:海船船员证