COLREG

Question 1

A power-driven vessel using a Traffic Separation Scheme shall : - a. If less than 20 metres in length shall not impede other power-driven vessels using the lane b. So far as practicable keep clear of a traffic separation line or separation zone c. Shall not anchor near the terminations. d. All of the above.

Answer 1

d. All of the above.

Question 2

During the day a vessel displays three black balls, what lights should she display at night ? a. 3 red lights b. 2 red lights c. 2 red lights and one all round white light.

Answer 2

c. 2 red lights and one all round white light.

Question 3

A vessel shall so far as practicable avoid crossing traffic lane, but if obliged to do so shall : a. cross at a small angle to the general direction of traffic flow as is safe and practicable b. cross as nearly as practicable at right angles to the general direction of the traffic flow c. use high powered engines

Answer 3

b. cross as nearly as practicable at right angles to the general direction of the traffic flow

Question 4

A vessel nearing a bend or an area of channel or fairway where other vessels may be obscured by an intervening obstruction shall sound :- a. One prolonged blast b. Two prolonged blast c. Three prolonged blast

Answer 4

a. One prolonged blast

Question 5

When two power-driven vessels are crossing so as to involve risk of collision :- a. The vessel which is faster shall give way b. The vessel which has the other on the starboard side shall give way c. Both vessels should give way to each other

Answer 5

b. The vessel which has the other on the starboard side shall give way

Question 6

Every vessel shall at all times determine if any risk of collision exists, if there is any doubt: a. such risk shall deem not to exist b. such risk shall deem to exist c. stop the engine immediately

Answer 6

b. such risk shall deem to exist

Question 7

A vessel of less than 20 meters in length or a sailing vessel shall :- a. avoid crossing the channel or the fairway. b. not impede the passage of a vessel which can safely navigate only within the narrow channel or fairway. c. impede the passage of a vessel which can safely navigate only within the narrow channel or fairway.

Answer 7

b. not impede the passage of a vessel which can safely navigate only within the narrow channel or fairway.

Question 8

In a narrow channel, a pleasure craft should remain as far as is safe and practicable :- a. on the port side of the channel. b. on the starboard side of the channel. c. in the middle of the channel.

Answer 8

b. on the starboard side of the channel.

Question 9

A vessel engaged in fishing when crossing the path of a power-driven vessel, so as to involve risk of collision :- a. Power-driven vessel should give way to the fishing vessel b. The fishing vessel should give way c. Both vessels should give way to each other.

Answer 9

a. Power-driven vessel should give way to the fishing vessel

Question 10

Every vessel that is directed to keep out of the way of another vessel shall :- a. sound and hail for right of way b. stay on course and alter course as necessary c. so far as possible take early and substantial action to keep well clear.

Answer 10

c. so far as possible take early and substantial action to keep well clear.

Question 11

A “Vessel not under Command” means : a. made fast ashore b. has a mechanical breakdown. . Eg engine of steering failure c. vessel is engaged in special operations

Answer 11

b. has a mechanical breakdown. . Eg engine of steering failure

Question 12

The navigational lights shall be displayed : a. between sunset and sunrise and during all conditions of restricted visibility b. between sunset and sunrise only c. when it is dark

Answer 12

a. between sunset and sunrise and during all conditions of restricted visibility

Question 13

A pilot vessel on duty at night shall display the following lights : a. Red over White b. White over Red c. White over White

Answer 13

b. White over Red

Question 14

A vessel at anchor by night shall exhibit where it can best be seen : a. an all round white light, at the fore part of the vessel b. a white light, at the stern of the vessel c. a white light, at the fore part of the vessel and the side lights (red & green)

Answer 14

a. an all round white light, at the fore part of the vessel

Question 15

When a vessel is overtaking another at night, she would be able to see the following lights of the vessel being overtaken: a. green, red and white light (side lights & masthead light) b. the green and red lights (side lights) c. one white light only (stern light)

Answer 15

c. one white light only (stern light)

Question 16

At night, a power-driven vessel sees a red and a green light only, directly ahead. What action does she take? a. Alter course to starboard immediately. b. Alter course to port immediately. c. Take appropriate action to avoid collision, as the vessel ahead is a sailing vessel.

Answer 16

c. Take appropriate action to avoid collision, as the vessel ahead is a sailing vessel.

Question 17

A towing vessel “T” not restricted in her ability to manoeuvre, is involved in a head-on situation with a power-driven vessel “P”, and risk of collision exists. What action should be taken to avoid a collision? a. Vessel “T” should give way to vessel “P”. b. Vessel “P” should give way to vessel “T”. c. Both vessels should give way to each other.

Answer 17

c. Both vessels should give way to each other.

Question 18

What fog signal does a power-driven vessel “making way” sound, when she is in or near an area of restricted visibility. a. 1 prolonged blast at intervals of not more than 2 mins. b. 2 prolonged blast at intervals of not more than 2 mins. c. 1 short blast at intervals of not more than 120 seconds.

Answer 18

a. 1 prolonged blast at intervals of not more than 2 mins.

Question 19

What fog signal does a power-driven vessel “underway” but not making way sound, when she is in or near an area of restricted visibility. a. 1 prolonged blast at intervals of not more than 1 minute. b. 2 prolonged blasts at intervals of not more than 2 minutes. c. 3 prolonged blast at intervals of not more than 2 minutes.

Answer 19

b. 2 prolonged blasts at intervals of not more than 2 minutes.

Question 20

What is the colour and characteristic of the towing light ? a. Yellow – same characteristic as the masthead light. b. Yellow - same characteristic as the stern light. c. Orange - same characteristic as the stern light.

Answer 20

b. Yellow - same characteristic as the stern light.

Question 21

You hear the fog signals of a vessel making way forward of your beam in an area of restricted visibility. She sounds close and possibly there is a risk of collision. You should : a. Slow down and assess the situation, and if it is safe alter course to starboard. b. Slow down and alter course to port. c. Proceed ahead and confirm that there is risk of collision before taking action.

Answer 21

a. Slow down and assess the situation, and if it is safe alter course to starboard.

Question 22

At night you see a vessel crossing and displaying two red lights in a vertical line. What action should you take ? a. If she is approaching from the port bow, stand-on. b. If she is approaching from the starboard bow, give way. c. Give way regardless of her relative position.

Answer 22

c. Give way regardless of her relative position.

Question 23

When in sight of one another, a vessel altering course to starboard shall sound : a. one short blast. b. two short blast. c. One prolonged blast.

Answer 23

a. one short blast.

Question 24

The following is a distress signal : a. jumping up and down on the upper deck continuously b. waving hands over the head continuously c. slowly and repeatedly raising and lowering arms outstretched to each side.

Answer 24

c. slowly and repeatedly raising and lowering arms outstretched to each side.

Question 25

In restricted visibility, a vessel restricted in her ability to manoeuvre, a vessel not under command and a vessel constrained by her draught, shall sound at intervals of not more than 2 minutes :- a. 1 prolonged blast. b. 2 prolonged blast. c. 3 blasts in succession, namely 1 prolonged followed by 2 short blasts.

Answer 25

c. 3 blasts in succession, namely 1 prolonged followed by 2 short blasts.

Question 26

A power-driven vessel underway shows the following lights :- a. masthead lights plus sidelights and stern light. b. masthead lights and sidelights c. masthead lights and stern light

Answer 26

a. masthead lights plus sidelights and stern light.

Question 27

What lights does a sailing vessel display ? a. port, starboard, masthead light and stern lights b. port, starboard and stern lights c. port, starboard and masthead lights

Answer 27

b. port, starboard and stern lights

Question 28

During restricted visibility, a sailing vessel proceeding through a narrow channel, when “making way” shall sound : a. 1 prolonged blast at intervals of more than 120 seconds b. 1 prolonged blast at intervals of not more than 120 seconds c. 3 blasts in succession, namely 1 prolonged followed by 2 short blasts.

Answer 28

c. 3 blasts in succession, namely 1 prolonged followed by 2 short blasts.

Question 29

When a sailing vessel and a power-driven vessel are on a head-on or nearly head-on situation, what collision avoiding action should be taken : a. Sailing vessel shall stand-on b. Power-driven shall vessel stand-on c. Both vessels shall give way

Answer 29

a. Sailing vessel shall stand-on

Question 30

A vessel at anchor by day, shall exhibit where it can best be seen : a. a black diamond at the forepart of the vessel b. 2 black balls at the forepart of the vessel c. one black ball at the forepart of the vessel

Answer 30

c. one black ball at the forepart of the vessel

Question 31

As per the International Regulations for Prevention of Collisions at Sea, a “proper lookout” is:- a. a lookout that makes a full appraisal of the situation and of the risk of collision b. a good lookout using binoculars c. a lookout all around all the time

Answer 31

a. a lookout that makes a full appraisal of the situation and of the risk of collision

Question 32

As per the International Regulations for Prevention of Collisions at Sea, a “vessel constrained by her draught” is to display by day :- a. a black diamond b. a black cone c. a black cylinder

Answer 32

c. a black cylinder

Question 33

During daylight, a sailing vessel under sail and power, shall display :- a. a black ball b. a black cone with apex pointing upward c. a black cone with apex pointing downward

Answer 33

c. a black cone with apex pointing downward

Question 34

A vessel displays three black balls. What type of vessel is that : a. constrained by her draught b. restricted in her ability to manoevure c. aground d. Not under Command

Answer 34

c. aground

Question 35

At night, a vessel restricted in her ability to manoevure, displays three all round lights in a vertical line, as follows : a. the top and bottom lights are red and the middle light is white b. the top two lights are red and the bottom light is white c. the three lights are white

Answer 35

a. the top and bottom lights are red and the middle light is white

Question 36

When using a narrow channel or fairway, a power-driven pleasure craft shall :- a. keep to the port side of the fairway b. keep to the starboard side of the fairway c. keep to the middle of the fairway

Answer 36

b. keep to the starboard side of the fairway

Question 37

When in doubt of the intention of the “Give-way” vessel, what sound signal shall the “Stand-on” vessel sound : a. one prolong blast b. 5 or more short blasts c. 3 short blasts

Answer 37

b. 5 or more short blasts

Question 38

In a head on situation, a sailing vessel X, under sail and power, and a tugboat Y engaged in towing, are approaching each other so as to involve risk of collision. What action shall be taken : a. X should give way b. Y should give way c. Both vessels should give way

Answer 38

c. Both vessels should give way

Question 39

The word “Making Way” means :- a. Drifting b. Moving through the water c. Stopped

Answer 39

b. Moving through the water

Question 40

In the event of a mechanical breakdown in a narrow channel or fairway : a. Signal for help b. Anchor the vessel c. Move to the starboard side of the channel and anchor.

Answer 40

c. Move to the starboard side of the channel and anchor.

Question 41

You see 2 masthead lights and both sidelights. What vessel is that? a. A power driven vessel of more than 50 meters in length b. A tug boat towing another vessel and the tow is less than 200 meters in length boat c. It could be „a‟ or „b‟

Answer 41

c. It could be „a‟ or „b‟

Question 42

The word “Under Way” means :- a. Drifting b. Moving through the water c. Stopped, not at anchor, nor made fast to the shore or aground

Answer 42

c. Stopped, not at anchor, nor made fast to the shore or aground

Question 43

The flag “A” in the International Code of Signals means :- a. I have a diver down below, so keep well clear at slow speed b. I am waiting for port clearance c. Keep clear of mehttps://s3.amazonaws.com/brainscape-prod/system/cm/035/738/800/q_image_thumb.png?1368367259

Answer 43

a. I have a diver down below, so keep well clear at slow speed

Question 44

In a head on situation, when a power-driven vessel meets a sailing vessel underway, and if risk of collision exist the power-driven vessel shall : - a. Turn to starboard b. Both turn to starboard c. Stop to see what’s going on d. Turn to either side to keep clear

Answer 44

d. Turn to either side to keep clear

Question 45

When negotiating a blind bend in a channel, you hear a prolong blast ahead of you. What action should you take? a. Sound 5 short blast and maintain course b. Sound 1 prolong blast and move closer to the starboard side of the channel c. Sound 2 prolong blasts and keep to the centre of the channel d. Stop Engine

Answer 45

b. Sound 1 prolong blast and move closer to the starboard side of the channel

Question 46

Some of the considerations to be given when determining safe speed are : a. Tonnage of boat, engine horsepower and number of personnel in the boat b. Traffic density, state of sea and visibility c. Time of the day, location and fuel capacity d. Length of boat and distance from shore

Answer 46

b. Traffic density, state of sea and visibility

Question 47

Both are power driven vessels. In this situation, if vessel „A‟ does not take action and there is risk of collision, when may vessel „B‟ take action to avoid collision ? a. At any time she feels it is appropriate b. After she sounds 3 short blasts c. When it becomes apparent that vessel „A‟ is not taking action d. When vessel A is less than 1 nautical milehttps://s3.amazonaws.com/brainscape-prod/system/cm/035/738/804/q_image_thumb.png?1368367304

Answer 47

c. When it becomes apparent that vessel „A‟ is not taking action

Question 48

At night, vessel „B‟ is approaching vessel „A‟. If you were on vessel „B‟, how would you know if vessel „B‟ is an overtaking vessel or not ? a. Cannot determine that for sure. b. If overtaking, vessel „B‟ should see the stern light, the green starboard side light and the mast light of vessel „A‟. c. If overtaking, I should see only the stern light of vessel „A‟. d. Vessel „B‟ is crossing because it is not right astern of vessel „A‟.

Answer 48

c. If overtaking, I should see only the stern light of vessel „A‟.

Question 49

A power-driven vessel ‘X’ is overtaking another power-driven vessel ‘Y’. If vessel ‘X’ fails to take action to avoid collision, vessel „Y‟ shall: a. maintain her course and speed. b. both vessel ‘X’ and ‘Y’ should give way to each other. c. take action to avoid collision. d. try to communicate with vessel „X‟https://s3.amazonaws.com/brainscape-prod/system/cm/035/738/806/q_image_thumb.png?1368368092

Answer 49

c. take action to avoid collision.

Question 50

Three power driven vessels are approaching. When risks of collision exists : a. Z stands-on for Y; b. Z stands-on for X; c. Z only gives way to X; or d. Z gives way to Y & X.https://s3.amazonaws.com/brainscape-prod/system/cm/035/738/807/q_image_thumb.png?1368368128

Answer 50

d. Z gives way to Y & X.

Question 51

In an overtaking situation if the powered driven vessel “P” maintains her course and speed, the sailing vessel “S” shall :- a. Maintain her course and speed b. Alter her course and keep clear of “P” c. Sound 5 or more short blastshttps://s3.amazonaws.com/brainscape-prod/system/cm/035/738/808/q_image_thumb.png?1368368156

Answer 51

b. Alter her course and keep clear of “P”

Question 52

When a power-driven vessel „P‟ is proceeding along a narrow channel or fairway, meets a vessel „F‟ engaged in fishing crossing the channel or fairway. a. Vessel „F‟ should give way to vessel „P‟ b. Vessel „P‟ should give way to vessel „F‟ c. Both vessels should give way to each otherhttps://s3.amazonaws.com/brainscape-prod/system/cm/035/738/809/q_image_thumb.png?1368370087

Answer 52

b. Vessel „P‟ should give way to vessel „F‟

Question 53

When three power driven vessels are meeting, as shown in the diagram so as to involve risk of collision: a. Vessel „A‟ gives way to vessel „B‟ b. Vessel „A‟ gives way to vessel „C‟ c. Vessel „A‟ gives way to vessel „B‟ and „C‟https://s3.amazonaws.com/brainscape-prod/system/cm/035/738/810/q_image_thumb.png?1368370132

Answer 53

b. Vessel „A‟ gives way to vessel „C‟

Question 54

When a sailing vessel „S‟ is crossing a power-driven vessel „P‟ so as to involve risk of collision; a. Both vessel „S‟ and „P‟ shall alter course to starboard. b. Vessel „S‟ should give way to vessel „P‟. c. Vessel „P‟ should give way to vessel „S‟.

Answer 54

c. Vessel „P‟ should give way to vessel „S‟.

Question 55

When a sailing vessel „S‟ is meeting head on with a power-driven vessel „P‟ so as to involve risk of collision; a. Both vessel „S‟ and „P‟ shall alter course to starboard. b. Vessel „S‟ should give way to vessel „P‟. c. Vessel „P‟ should give way to vessel „S‟.https://s3.amazonaws.com/brainscape-prod/system/cm/035/738/812/q_image_thumb.png?1368370239

Answer 55

c. Vessel „P‟ should give way to vessel „S‟.

Question 56

A tug boat less than 50 metres in length towing a long barge more than 200 metres in length shall display : a. 1 mast head light b. 2 masthead lights c. 3 masthead lights

Answer 56

c. 3 masthead lights

Question 57

When overtaking another vessel on its port side, and soon you need to alter your course to starboard. You shall :- a. Wait till the overtaken vessel is past and clear b. Give 5 or more short blasts c. Slow down. Once the other vessel has overtaken and is clear, then alter course to starboard

Answer 57

c. Slow down. Once the other vessel has overtaken and is clear, then alter course to starboard

Question 58

In a power driven vessel less than 12 metres in length, what does the combine lantern consist of ? a. port and starboard sidelights b. port, starboard and stern lights c. port, starboard and masthead lights.

Answer 58

a. port and starboard sidelights

Question 59

w would you determine if risk of collision exists ? a. By observing the relative bearing b. The compass bearing of an approaching vessel does not appreciably change c. By observing the distance of the other vessel

Answer 59

b. The compass bearing of an approaching vessel does not appreciably change