Rule 19 applies to vessels not in sight of one another when navigating:

I. in an area of restricted visibility

II. near an area of restricted visibility

• I only

• II only

• both I and II

• neither I nor II

In restricted visibility, a vessel which detects by radar alone the presence of another vessel, shall determine if a close quarter situation is developing or risk of collision exists. If so, she shall:

• sound the danger signal

• when taking action, make only course changes

• avoid altering course toward a vessel abaft the beam

• all of the above

You are on a power-driven vessel in fog. Your vessel is proceeding at a safe speed when you hear a fog signal ahead of you. In this situation, the rules require you to navigate with caution until the danger of collision is over and to:

• Stop your engine

• Initiate a radar plot

• Slow down to less than 2 knots

• Reduce to bare steerageway

You are in restricted visibility and hear a fog signal forward of the beam. Nothing appears on your radar screen, the rules require you to:

• Stop your engines

• Sound the danger signal

• Slow to bare steerageway

• Sound two prolonged blasts on the whistle

While underway in fog, you hear the fog signal of another vessel ahead. If a risk of collision exists, you must:

• Stop your engines and navigate with caution

• Sound three short blasts and back your engines

• Slow to bare steerageway and navigate with caution

• Continue on your course and speed until the other vessel is sighted

Which statement concerning maneuvering in restricted visibility is false?

• A vessel which hears a fog signal of the beam shall navigate with caution

• A vessel which hears a fog signal forward of her beam shall stop her engine

• If a vessel determines by radar that a close quarter situation is developing, she shall take

  avoiding action in ample time

• A vessel which cannot avoid a close quarter situation with a vessel forward of her beam

  shall reduce her speed to bare steerageway

You are underway in restricted visibility you hear, about 22 degrees on the starboard bow, the fog signal of another vessel. You should:

• Reduce your speed to bare steerageway

• Alter course to port to pass him on her port side

• Slow your engines and let her pass ahead of you

• Alter the course to starboard to pass around the vessel’s stern

You are underway in thick fog. Which statement is true?

• A look-out is not required if the radar is on

• Fog signals are only required when a vessel is detected by radar

• The engines must be stopped if a fog signal is heard forward of the beam

• The radar should be kept on a short range scale for maximum detection of vessels

You hear the fog signal of another vessel forward of your beam. Risk of collision may exist. You must:

• Begin a radar plot

• Stop your engines

• Slow down your speed

• Take all way off, if necessary

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:

• Stop your engines

• Sound the danger signal at two minute interval

• Take proper avoiding action as soon as possible

• Hold course and speed until the other vessel is sighted