Coast Guard Test Coast Guard Navigation and Seamanship 2

Question 1

A vessel showing a red light on its port side and a green light on its starboard side is displaying what type of navigation lights?

Accepted Answer

Sidelights

Answer

Red (port) and green (starboard) lights are called sidelights and indicate the vessel's orientation to other traffic.

Question 2

When two power-driven vessels meet head-on, what is the correct action under the Navigation Rules?

Accepted Answer

Each alters course to starboard

Answer

In a head-on meeting, each vessel alters course to starboard so they pass port-to-port.

Question 3

What does a single short blast of the whistle signal to another vessel in a meeting or crossing situation?

Accepted Answer

I intend to leave you on my port side

Answer

One short blast means the vessel intends to alter course to starboard, leaving the other on its port side.

Question 4

A green can-shaped buoy marked with an odd number indicates which side of the channel when returning from sea?

Accepted Answer

Port side

Answer

Green odd-numbered can buoys mark the port side of the channel under the 'red-right-returning' rule.

Question 5

What is the primary purpose of a compass rose printed on a nautical chart?

Accepted Answer

To show true and magnetic direction

Answer

The compass rose gives both true and magnetic bearings for plotting courses.

Coast Guard Practice Test