（）is on the panel of radar.

Fog is likely to occur when there is little difference between the dew point and the（）.

The helm command PORT TWENTY means（）.

Which wind results from a land mass cooling more quickly at night than an adjacent water area?（）

When the wave period and the apparent rolling period are the same（）.

（）is halfway between the forward and after perpendiculars and is reference point for vessel construction.

（）is where the crew eat their meals.

Full details of all lights and fog signals are shown on（）.

The circulation around a low pressure center in the Northern Hemisphere is（）.

Your vessel is docking, but not yet alongside. Which line will be the most useful when maneuvering the vessel alongside the pier?（）.