The dry bulb temperature is 73°F (22.8°C) and the wet bulb temperature is 60°F (15.6°C). What is the relative humidity?

Which would influence a magnetic compass?

A towboat has the same draft as the barges it is pushing ahead. If the distance...

What does the abbreviation L.W.R.P. on the navigation maps mean?

What is an advantage of the magnetic compass aboard vessels?

Which agency maintains federal aids to navigation?

Which agency publishes the Light Lists?

An air mass that has moved down from Canada would most likely have which symbols...

When is an air mass termed "warm"?

Which is a characteristic of anticyclones?

What should you apply to a fathometer reading to determine the depth of water?