IALA Buoyage System

Which of the following countries is not a part of IALA Region B?

• South America

• Australia

• Japan

• The Carribean

A buoy that indicates the general direction when approaching harbours, channels and waterway from seaward.

• Lateral Buoys

• Cardinal Buoys

• Safe Water Buoys

• Special Buoys

What does 11M means in the light description Fl5s10m11M

• Elevation

• Range

• Period

• Phase

The distance of horizon refers to

• Nominal Range

• Luminous Range

• Geographical Range

• Visibility Range

What type of mark is this?

• Starboard lateral mark

• Isolated danger mark

• Safe water mark

• Cardinal mark

What does a safe water mark indicate?

• There is safe water all around the mark.

• You are about to enter safe water.

• You are about to exit safe water.

What type of mark is this?

• Safe water mark

• Special mark

• Isolated danger mark

• Lateral mark

What do cardinal marks indicate?

• Port or starboard side

• Compass direction of the safest water

• Danger

• Safe water

Quick or very quick flashing white light indicates what buoy?

• North Cardinal

• West Cardinal

• Isolated Danger

• Safe Water

The duration of the light is always less than the duration of the darkness is called?

• Isophase

• Flashing

• Alternating

• Occulting