MCA Certificate of Competency Collision Avoidance Regulations Questions and Answers

Question 1

You are on a power-driven vessel in restricted visibility and detect by radar alone a target on your starboard bow.
A risk of collision is deemed to exist.
According to Rule 19, which of the following actions should be avoided?

Accepted Answer

An alteration of course to port.

Answer

Maintaining course and speed until the target is in visual sight.

Answer

A substantial alteration of course to starboard.

Answer

Reducing speed to the minimum at which she can be kept on her course.

Question 2

While navigating at night, you observe a vessel ahead displaying three all-round red lights in a vertical line. What does this indicate?

Accepted Answer

A vessel constrained by her draught.

Answer

A vessel engaged in dredging or underwater operations.

Answer

A vessel not under command.

Answer

A vessel aground.

Question 3

You are the Officer of the Watch on power-driven Vessel A. You observe power-driven Vessel B on your starboard side, on a crossing course, and a risk of collision exists. Under the COLREGs, what is Vessel A's primary responsibility?

Accepted Answer

Take early and substantial action to keep well clear.

Answer

Maintain course and speed as the stand-on vessel.

Answer

Sound five short and rapid blasts to indicate doubt.

Answer

Alter course to port to pass astern of Vessel B.

Question 4

In accordance with Rule 9 (Narrow Channels), which of the following actions is required for a vessel of less than 20 metres in length?

Accepted Answer

Not impede the passage of a vessel which can safely navigate only within the channel.

Answer

Keep to the middle of the channel for the best depth.

Answer

Anchor only in the centre of the fairway.

Answer

Claim privilege over larger vessels due to her manoeuvrability.

Question 5

What is the mandatory sound signal for a sailing vessel underway in restricted visibility?

Accepted Answer

One prolonged blast followed by two short blasts at intervals of not more than two minutes.

Answer

One prolonged blast at intervals of not more than two minutes.

Answer

Two prolonged blasts at intervals of not more than two minutes.

Answer

Rapid ringing of a bell for five seconds at intervals of not more than one minute.

Question 6

A power-driven vessel is overtaking a sailing vessel. According to the COLREGs, which statement is correct?

Accepted Answer

The power-driven vessel must keep out of the way, as it is an overtaking vessel.

Answer

The sailing vessel is the stand-on vessel and must maintain course and speed.

Answer

Both vessels must take action as it is a special circumstance.

Answer

The power-driven vessel is the stand-on vessel because it is more powerful.