Rule 7

Question 1

7a

Answer 1

Every vessel shall use all available means appropriate to the prevailing circumstances and conditions to determine if a risk of collision exists. If there is any doubt such risk shall be deemed to exist

Question 2

7b

Answer 2

Proper use shall be made of radar equipment if fitted and operational, including long range scanning to obtain early warning of risk of collision and radar plotting or equivalent systematic observation of detected objects

Question 3

7c

Answer 3

Assumptions shall not be made on the basis of scanty information especially scanty radar information

Question 4

7d

Answer 4

In determining if risk of collision exists the following considerations shall be among those taken into account

Question 5

7d 1

Answer 5

Such risk shall be deemed to exist when a compass bearing of an approaching vessel does not change appreciably

Question 6

7d 2

Answer 6

Such risk may still exist even when an appreciable bearing change is evident, particularly when approaching a very large vessel or a tow or approaching a vessel from close range