198 NICHOLLS'S SEAMANSHIP AND NAUTICAL KNdWLEDGE
QUESTIONS ON THE RULES CONCERNING LIGHTS, ETC.
Articles 1 to 14.
1. When is a vessel said to be under way?
When she is not at anchor, or made fast to the snore, or aground.
2. During what times must the Bules concerning lights be complied with?
In all weathers from sunset to sunrise; and during such time no
other lights which may be mistaken for any Eegulation lights must be
exhibited.
3. What light or lights are required by the Regulations to be exhibited
by vessels at anchor?
If they are under 150 feet in length, one white light forward. If
of 150 feet or upwards, two white lights, one forward and one aft. This
applies to both steam and sailing vessels.
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4:. Where must the anchor light be exhibited in a vessel less than 150
feet in length?
Forward, where it can best be seen, and where there is the least*
chance of obstruction from spars,* etc. It must not be more than 20
feet above the hull.
5. Where must the two anchor lights be shown in vessels of 150 feet
and upwards?
One light must be shown forward, not less than 20 and not more
than 40 feet above the hull; the other must be at or near the stern and
at least 15 feet lower than the forward light.
6. In what direction or directions must the anchor lights show, and at
what distance must they be visible?
They must show a clear, uniform and unbroken light, visible all
round the horizon .at a distance of at least 1 mile.
7. What light or lights must a vessel aground in or near a fairway carry?
The light or lights prescribed for a vessel at anchor, and in addition
the two red lights for a vessel not under command,
8. Describe the masthead light for steam vessels.
It must be of such a character and so placed in position that it
will show an unbroken white light from right ahead to 2 points abaft
*The forestay well clear of the foremast is the best position, as the masts
and funnel being in line will only obstruct it in one direction.