RYA Day Skipper Lights & Shapes 2

Question 1

What light(s) does a vessel of less than 50m show when at anchor?

Accepted Answer

One all-round white light

Answer

A vessel under 50m at anchor shows a single all-round white light in the fore part of the vessel where it can best be seen.

Question 2

At what minimum range must the masthead light of a vessel of 50m or more be visible?

Accepted Answer

6 miles

Answer

COLREGS Rule 22 requires the masthead light of a vessel 50m or more in length to be visible at a minimum range of 6 nautical miles.

Question 3

A vessel engaged in trawling at night, when making way, shows which combination of lights?

Accepted Answer

Green over white all-round lights, sidelights and sternlight

Answer

A trawler underway and making way shows two all-round lights (green over white), plus sidelights and a sternlight.

Question 4

What day signal does a vessel engaged in diving operations display?

Accepted Answer

A rigid replica of the International Code flag Alpha

Answer

A vessel with a diver down displays a rigid replica of Code flag Alpha (blue and white swallowtail), the international signal meaning 'I have a diver down — keep clear at slow speed'.

Question 5

What additional all-round light does an air-cushion vessel (hovercraft) in non-displacement mode show?

Accepted Answer

A flashing yellow all-round light

Answer

An air-cushion vessel in non-displacement mode shows a flashing yellow all-round light in addition to the lights required for a power-driven vessel.

RYA Day Skipper Practice Test

RYA Day Skipper Practice Test

RYA Day Skipper Lights & Shapes 2