Buoys

Question 1

Which IALA buoyage system will you be using when entering a harbour in Japan?

• IALA Buoyage System B
• IALA Buoyage System A

Question 2

Which of the following chart symbols represents an isolated danger buoy?

• 
• 
• 
• 

Question 3

Generally, the direction of buoyage when entering a harbour is into the harbour from the sea. True or False?

• False
• True

Question 4

A West Cardinal mark has which colour characteristics?

• 
• 
• 
• 

Question 5

Generally, the direction of buoyage when entering a river is towards the rivers source. True or False?

• False
• True

Question 6

The following image correctly shows a channel in IALA Buoyage System B. True or False?

• False
• True

Question 7

What is a Safe Water Marker used for?

• Identify the location of underwater dangers such as submerged rocks
• To identify navigable water
• The position of a danger
• To mark the site of a new wreck

Question 8

Which of the following colours identifies an isolated danger buoy?

• 
• 
• 
• 

Question 9

Which of the following chart symbols represents a preferred channel to starboard in an IALA B buoyage system?

• 
• 
• 
• 

Question 10

The following chart symbol represents which Cardinal mark?

• West
• East
• North
• South