When using a high-velocity fog stream in a passageway,the possibility of a blow back must be guarded against. Blow back is most likely to occur when().
Advection fog holds longest over which portions of the lakes? ()
FOG[W]表示能见度为()。
The 12-foot low-velocity fog applicator().
Radar makes it possible for us()in dense fog.
In fog you observe your radar and determine that risk of collision exists with a vessel which is 2 miles off your port bow. You should().
Fog forms when the air().
Radiation fog().
Fog forms when the air().
You are underway in thick fog. You have not determined if risk of collision exists. Which statement is TRUE?().