1.2. Lights, shapes, fog signals and additional signals

Question 1

All Round Lights

1. Anchor
2. NUC
3. Aground
4. CBD
5. Fishing
6. Trawling
7. Pilot
8. Towing
9. RAM (Dredge/ Dive)
10. Mine Clearance

Answer 1

Question 2

Day Shapes

1. Anchor
2. NUC
3. Aground
4. CBD
5. Fishing
6. Trawling
7. Pilot
8. Towing
9. RAM (Dredge/ Dive)
10. Mine Clearance

Answer 2

Question 3

Fog Signals

1. Anchor
2. Aground
3. Power Driven
4. Not Making Way
5. NUC, RAM, CbD, Fish, Sail, Tow
6. Manned Tow
7. Pilot

Answer 3

Question 4

Manoevering & Warning Signals

1. Manoevering
2. Approaching a bend
3. Danger Signal
4. Narrow Cannel Signals

Answer 4

Question 5

Minimum range of visibility in nautical miles:

Answer 5

Length Masthead Sidelight. Sternlight

>50m 6 miles 3 miles 3 miles

>20m - <50m 5 miles 2 miles 2 miles

>12m - <20m 3 miles. 2 miles 2 miles

< 12m 2 miles. 1 mile 2 miles

Question 6

POSITION OF LIGHTS

Answer 6

Masthead lights:

For v/l > 20m - The fwd light or if only 1 light is carried: at a height of < than 6m above the hull

and if the B of the v/l > than 6m, then at a height of < than B but never >than 12m.

When 2 lights are fitted: after light at least 4.5m higher than the fwd light: but always that these lights are seen separately when viewed at sea level from 1000m ahead.

For v/l >12m but <20m: the height above the gunwale of < than 2.5m.

For v/l <12m: can be < than 2.5m above the gunwale, but the separation between light and sidelights shall be at least 1m.

For v/l towing; one of the 2 or 3 lights to be in the same position as the fwd or after light;

however if on aft mast, lowest light at least 4.5m higher than the fwd light. & Clear and above all other lights and obstructions.

The horizontal distance between the lights not than ½ L of the v/l but > than 100M.

The fwd light not > than ¼ L from the stem.

If one masthead light: Then it must be forward of amidships.

For v/l < than 20m, need not be fwd of amidships but as forward as is practicable.

Sidelights:

Height above the hull > than ¾ the height of the fwd masthead light.

If a combined lantern on a power v/l <20m, not < than 1m below the masthead light.

Not so low that they can be interfered with by deck lights.

Power driven v/l >than 20m: may not be placed fwd of the masthead Lt and near the sides of the v/l.

All round lights in a vertical line:

For v/l > than 20m: vertical spacing at least 2m. Lowest light at least 4m above the hull.

For v/l < than 20m: vertical spacing at least 2m. Lowest light at least 2m above the hull.

If more than 2 lights carried, then equally spaced.

For a fishing vessel the lower light shall be above the sidelights a distance of at least twice the vertical separation of the all round lights.

Anchor lights:

If 2 anchor lights are carried, the forward anchor light shall be not< than 4.5m above the after light and the forward anchor light shall be not < than 6m above the hull.

Question 7

Arc Of Lights

1. Masthead
2. Stern Lt
3. Towing
4. Side
5. All Round
6. Flashing

Answer 7