On the high seas,a fog signal consisting of one prolonged blast followed by four short blasts would indicate the presence of a().
Advection fog is most commonly caused by().
The fog produced by warm moist air passing over a cold surface is called().
Full details of all lights and fog signals are shown on().
When vessel enters thick fog, she should sound()every two minutes in accordance with the rules.
Fog is most commonly associated with a(n)().
A 95-meter vessel aground sounds which fog signal? ()
Advection fog is most commonly caused by().
Water fog from an all-purpose nozzle may be used to().
Which statement concerning the operation of radar in fog is TRUE?()