OUPV Chart Plotting and Piloting 2

Question 1

On a nautical chart, what does a magenta (purple) color typically indicate?

Accepted Answer

Lighted aids to navigation and caution areas

Answer

Magenta is used on nautical charts to highlight lighted aids to navigation, caution areas, and other important navigational features.

Question 2

What navigational tool is used to measure distance on a nautical chart?

Accepted Answer

Dividers using the latitude scale

Answer

Dividers are used to measure distance on a chart by comparing the span to the latitude scale on the charts side, where one minute of latitude equals one nautical mile.

Question 3

What does the abbreviation Fl(2) 6s mean on a nautical chart?

Accepted Answer

A group flashing light showing 2 flashes every 6 seconds

Answer

Fl(2) 6s indicates a group flashing light that produces 2 flashes in each period of 6 seconds.

Question 4

When plotting a course on a chart, which reference direction does a magnetic course use?

Accepted Answer

Magnetic north

Answer

A magnetic course is referenced to magnetic north, which accounts for the local variation between true north and the magnetic north pole.

Question 5

What does a triangle symbol on a nautical chart represent?

Accepted Answer

A fixed navigational aid or landmark used for piloting

Answer

A triangle on a nautical chart typically represents a fixed navigational aid, landmark, or triangulation point used for position fixing.

OUPV - Operator Uninspected Passenger Vessel Practice Test

OUPV - Operator Uninspected Passenger Vessel Practice Test

OUPV Chart Plotting and Piloting 2