2 Conduct of Vessels in Any Condition of Visibility

Question 1

BOTH INTERNATIONAL & INLAND: A vessel approaching a narrow channel shall anchor only in the middle of the channel. TRUE or FALSE?

Refer to COLREG 9(g)

Answer 1

False

Any vessel shall, if the circumstances of the case admit, avoid anchoring in a narrow channel.

Question 2

BOTH INTERNATIONAL & INLAND In determining “safe speed”, the maximum horsepower of your vessel must be taken into account. TRUE of FALSE?

Rule 6(a)(iii)(iv)(vi)

Answer 2

False

Factors to be taken into account: state of visibility; traffic density; maneuverability of the vessel, background lights; state of the wind, sea, current, and the proximity of navigational hazards; and the draft in relation to the available depth of water

Question 3

BOTH INTERNATIONAL & INLAND When in sight of another vessel, any action taken to avoid collision must _____________.

Reference: Rule 8(c)

Answer 3

Not result in another close quarters situation

If there is sufficient sea room, alteration of course alone may be the most effective action to avoid a close-quarters situation provided that it is made in good time, is substantial and does not result in another close-quarters situation.

Question 4

BOTH INTERNATIONAL & INLAND: The Rules require that any action taken to avoid collision must be positive and made in ample time. TRUE or FALSE

Refer to COLREG 8(a)(b)(c)(d)(e)(f)

Answer 4

True

Any action taken to avoid collision shall be taken in accordance with the Rules of this Part and shall, if the circumstances of the case admit, be positive, made in ample time and with due regard to the observance of good seamanship.

Question 5

BOTH INTERNATIONAL & INLAND: A vessel proceeding along a narrow channel when nearing a bend in the channel shall sound a long blast of the whistle.

Refer to COLREG 9(f); 34(f)

Answer 5

False

A vessel nearing a bend or an area of a narrow channel or fairway where other vessels may be obscured by an intervening obstruction shall navigate with particular alertness and caution and shall sound the appropriate signal prescribed in Rule 34(e).

Question 6

BOTH INTERNATIONAL & INLAND A vessel must proceed at a safe speed _________________________.

Reference: Rule 6

Answer 6

At all times

Every vessel shall at all times proceed at a safe speed so that she can take proper and effective action to avoid collision and be stopped within a distance appropriate to the prevailing circumstances and conditions.

Question 7

BOTH INTERNATIONAL & INLAND: A vessel not under command is directed not to impede the passage of a vessel that can only navigate inside a narrow channel. TRUE or FALSE?

Refer to COLREG 9(b)(c)

Answer 7

False

A vessel of less than 20 meters in length, fishing vessel, or a sailing vessel shall not impede the passage of a vessel which can safely navigate only within a narrow channel or fairway.

Question 8

BOTH INTERNATIONAL & INLAND: “safe speed” is defined as that speed where no wake comes from your vessel. TRUE or FALSE

COLREG 6(a)

Answer 8

False

In determining a safe speed the following factors shall be among those taken into account: State of Visibility; traffic density; maneuverability; presence of background lighting; wind, sea, current, and proximity of navigational hazards; draft of vessel.

Question 9

BOTH INTERNATIONAL & INLAND: When in sight of another vessel, any action taken to avoid a collision must be accompanied by sound signals. TRUE or FALSE

Refer to COLREG 8(a)(b)(c)(d)(e)(f)

Answer 9

False

Any action taken to avoid collision shall be taken in accordance with the Rules of this Part and shall, if the circumstances of the case admit, be positive, made in ample time and with due regard to the observance of good seamanship.

Question 10

INLAND ONLY: You are operating a vessel through a narrow channel and your vessel must stay within the channel to be navigated safely. Another vessel is crossing your course from starboard to port, and you are in doubt as to her intentions. You are required to back down. TRUE or FALSE?

Inland Rule 9(d)

Answer 10

False

A vessel which can safely navigate only within that channel or fairway shall use the danger signal prescribed in Rule 34(d) if in doubt as to the intention of the crossing vessel.

Question 11

BOTH INTERNATIONAL & INLAND In narrow channels, vessels of less than what length shall not impede the safe passage of vessels which can navigate only inside the channel?

Reference: Rule 9(b)

Answer 11

20 Meters

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

Question 12

BOTH INTERNATIONAL & INLAND The rule regarding look-outs applies _________________.

Reference: Rule 5

Answer 12

In restricted Visibility; between dusk and dawn; and in heavy traffic

Every vessel shall at all times maintain a proper look-out by sight and hearing as well as by all available means appropriate in the prevailing circumstances and conditions so as to make a full appraisal of the situation and of the risk of collision.

Question 13

BOTH INTERNATIONAL & INLAND: A vessel engaged in surveying is directed not to impede the passage of a vessel that can only navigate inside a narrow channel. TRUE or FALSE?

Refer to COLREG 9(b)(c)

Answer 13

False

A vessel of less than 20 meters in length, fishing vessel, or a sailing vessel shall not impede the passage of a vessel which can safely navigate only within a narrow channel or fairway.

Question 14

BOTH INTERNATIONAL & INLAND: The Rules state that risk of collision shall be deemed to exist whenever two vessels approach from opposite directions. TRUE or FALSE

Refer to COLREG 7(d)

Answer 14

False

In determining if risk of collision exists such risk shall be deemed to exist if the compass bearing of an approaching vessel does not appreciably change.

Question 15

BOTH INTERNATIONAL & INLAND: A vessel proceeding along a narrow channel when nearing a bend in the channel shall keep as near as safe and practicable to the limit of the channel on her starboard side. TRUE or FALSE?

Refer to COLREG 9(a)

Answer 15

True

A vessel proceeding along the course of a narrow channel or fairway shall keep as near to the outer limit of the channel or fairway which Iies on her starboard side as is safe and practicable.

Question 16

BOTH INTERNATIONAL & INLAND Risk of collision exists when an approaching vessel has a(n) ________________.

Reference: Rule 7(d)(i)

Answer 16

Generally steady bearing and decreasing range

Such risk shall be deemed to exist if the compass bearing of an approaching vessel does not appreciably change.

Question 17

BOTH INTERNATIONAL & INLAND: According to the rules, any action taken to avoid a collision must include changing the vessel’s speed. TRUE or FALSE

Refer to COLREG 8(a)(b)(c)(d)(e)(f)

Answer 17

False

Any action taken to avoid collision shall be taken in accordance with the Rules of this Part and shall, if the circumstances of the case admit, be positive, made in ample time and with due regard to the observance of good seamanship.

Question 18

BOTH INTERNATIONAL & INLAND You are crossing a narrow channel in an 18-meter tug when you sight a loaded tankship off your port bow coming up the channel. According to the Rules you CANNOT impede the safe passage of the tankship. TRUE or FALSE?

Reference: Rule 9(b)

Answer 18

True

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

Question 19

BOTH INTERNATIONAL & INLAND: A vessel approaching a narrow channel shall not overtake any vessels within the channel. TRUE or FALSE?

Refer to COLREG 9(e)(i)

Answer 19

False

In a narrow channel or fairway when overtaking can take place only if the vessel to be overtaken has to take action to permit safe passing, the vessel intending to overtake shall indicate her intention by sounding the appropriate signal.

Question 20

BOTH INTERNATIONAL & INLAND: “safe speed” is defined as that speed where you can take proper and effective action to avoid collision. TRUE or FALSE

Refer to COLREG 6(a)

Answer 20

True

In determining a safe speed the following factors shall be among those taken into account: State of Visibility; traffic density; maneuverability; presence of background lighting; wind, sea, current, and proximity of navigational hazards; draft of vessel.

Question 21

INLAND ONLY: You are operating a vessel through a narrow channel and your vessel must stay within the channel to be navigated safely. Another vessel is crossing your course from starboard to port, and you are in doubt as to her intentions. You must sound the danger signal.

Inland Rule 9(d); 34(d)

Answer 21

True

A vessel which can safely navigate only within that channel or fairway shall use the danger signal prescribed in Rule 34(d) if in doubt as to the intention of the crossing vessel.

Question 22

BOTH INTERNATIONAL & INLAND: A vessel of less than 20 meters in length is directed not to impede the passage of a vessel that can only navigate inside a narrow channel. TRUE or FALSE?

Refer to COLREG 9(b)(c)

Answer 22

True

A vessel of less than 20 meters in length, fishing vessel, or a sailing vessel shall not impede the passage of a vessel which can safely navigate only within a narrow channel or fairway.

Question 23

INLAND ONLY: You are operating a vessel through a narrow channel and your vessel must stay within the channel to be navigated safely. Another vessel is crossing your course from starboard to port, and you are in doubt as to her intentions. You MAY sound the danger signal.

Inland Rule 9(d); 34(d)

Answer 23

False

A vessel which can safely navigate only within that channel or fairway shall use the danger signal prescribed in Rule 34(d) if in doubt as to the intention of the crossing vessel.

Question 24

BOTH INTERNATIONAL & INLAND What is a requirement for any action taken to avoid collision?

Reference: Rule 8(a)

Answer 24

The action must be positive and made in ample time.

Any action taken to avoid collision shall be taken in accordance with the Rules of this Part and shall, if the circumstances of the case admit, be positive, made in ample time and with due regard to the observance of good seamanship.

Question 25

BOTH INTERNATIONAL & INLAND: You are approaching another vessel and are not sure whether danger of collision exists. You must assume you are the give way vessel. TRUE or FALSE

Refer to COLREG 7(a)

Answer 25

False

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

Question 26

BOTH INTERNATIONAL & INLAND: A vessel approaching a narrow channel shall keep as close as possible to the edge of the channel on her port side. TRUE or FALSE?

Refer to COLREG 9(a)

Answer 26

False

A vessel proceeding along the course of a narrow channel or fairway shall keep as near to the outer limit of the channel or fairway which Iies on her starboard side as is safe and practicable.

Question 27

BOTH INTERNATIONAL & INLAND: “safe speed” is defined as that speed where you are traveling slower than surrounding vessels. TRUE or FALSE

Refer to COLREG 6(a)

Answer 27

False

In determining a safe speed the following factors shall be among those taken into account: State of Visibility; traffic density; maneuverability; presence of background lighting; wind, sea, current, and proximity of navigational hazards; draft of vessel.

Question 28

BOTH INTERNATIONAL & INLAND The maneuverability of a vessel is listed in the Rules as one which must be taken into account when determining safe speed. TRUE or FALSE?

Reference: Rule 6(a)(iii)

Answer 28

True

The maneuverability of the vessel with special reference to stopping distance and turning ability in the prevailing condition is a factor the Rules require you to consider when determining a safe speed.

Question 29

BOTH INTERNATIONAL & INLAND You are approaching a narrow channel. Another vessel in the channel can only be navigated safely in that channel. You should ________________________.

Reference: Rule 9(d)

Answer 29

Not cross the channel if you might impede the other vessel

A vessel shall not cross a narrow channel or fairway if such crossing impedes the passage of a vessel which can safely navigate only within such channel or fairway.

Question 30

INTERNATIONAL & INLAND: A proper lookout shall be maintained only at night. TRUE or FALSE?

Refer to COLREG 5

Answer 30

False

Every vessel shall at all times maintain a proper look-out by sight and hearing as well as by all available means appropriate in the prevailing circumstances and conditions.

Question 31

BOTH INTERNATIONAL & INLAND: A vessel proceeding along a narrow channel shall avoid crossing the channel at right angles. TRUE or FALSE?

Refer to COLREG 9(d)

Answer 31

False

A vessel shall not cross a narrow channel or fairway if such crossing impedes the passage of a vessel which can safely navigate only within such channel or fairway.

Question 32

BOTH INTERNATIONAL & INLAND: In determining “safe speed,” you must take into account the maneuverability of your vessel. TRUE or FALSE

Refer to COLREG 6(a)

Answer 32

True

In determining a safe speed the following factors shall be among those taken into account: State of Visibility; traffic density; maneuverability; presence of background lighting; wind, sea, current, and proximity of navigational hazards; draft of vessel.

Question 33

INTERNATIONAL ONLY Which vessel is directed by the Rules to avoid impeding the safe passage of a vessel while operating in a narrow channel or fairway?

Reference: Rule 9(c)

Answer 33

Fishing Vessel

A vessel engaged in fishing shall not impede the passage of any other vessel navigating within a narrow channel or fairway.

Question 34

BOTH INTERNATIONAL & INLAND The Rules state that certain factors are to be taken into account when determining safe speed. Those factors include _____________________.

Reference: Rule 6(a)(v)

Answer 34

State of wind, sea, and current, and the proximity of navigational hazards

In determining a safe speed the state of wind, sea and current, and the proximity of navigational hazards are factors the Rules require to be taken into account.

Question 35

BOTH INTERNATIONAL & INLAND A vessel using a traffic separation scheme shall NOT _________________.

Reference: Rule 10(b)(i)

Answer 35

Proceed in an inappropriate traffic lane

A vessel using a traffic separation scheme shall proceed in the appropriate traffic lane in the general direction of traffic flow for that lane.

Question 36

BOTH INTERNATIONAL & INLAND A vessel proceeding along a narrow channel shall _____________________.

Reference: Rule 9(a)

Answer 36

Keep as near as safe and practicable to the limit of the channel on her starboard side

A vessel proceeding along the course of a narrow channel or fairway shall keep as near to the outer limit of the channel or fairway which Iies on her starboard side as is safe and practicable.

Question 37

BOTH INTERNATIONAL & INLAND: A proper lookout shall be maintained only during restricted visibility. TRUE or FALSE

Refer to COREG 5

Answer 37

False

Every vessel shall at all times maintain a proper look-out by sight and hearing as well as by all available means appropriate in the prevailing circumstances and conditions.

Question 38

BOTH INTERNATIONAL & INLAND: You are approaching another vessel and are not sure whether danger of collision exists. You must assume there is risk of collision. TRUE or FALSE

Refer to COLREG 7(a)

Answer 38

True

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

Question 39

BOTH INTERNATIONAL & INLAND: You are approaching another vessel and are not sure whether danger of collision exists. You must assume the other vessel is also in doubt. TRUE or FALSE

Refer to COLREG 7(a)

Answer 39

False

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

Question 40

BOTH INTERNATIONAL & INLAND Risk of collision is considered to exist if ______________________________.

Reference: Rule 7(a)

Answer 40

There is any doubt that a risk of collision exists

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

Question 41

BOTH INTERNATIONAL & INLAND: In determining “safe speed,” you must take into account the presence of background lights at night. TRUE or FALSE

Refer to COLREG 6(a)

Answer 41

True

In determining a safe speed the following factors shall be among those taken into account: State of Visibility; traffic density; maneuverability; presence of background lighting; wind, sea, current, and proximity of navigational hazards; draft of vessel.

Question 42

BOTH INTERNATIONAL & INLAND: A proper lookout shall be maintained at all times. TRUE or FALSE

Refer to COREG 5

Answer 42

True

Every vessel shall at all times maintain a proper look-out by sight and hearing as well as by all available means appropriate in the prevailing circumstances and conditions.

Question 43

BOTH INTERNATIONAL & INLAND: In determining “safe speed,” you must take into account the maximum horsepower of your vessel. TRUE or FALSE

Refer to COLREG 6(a)

Answer 43

False

In determining a safe speed the following factors shall be among those taken into account: State of Visibility; traffic density; maneuverability; presence of background lighting; wind, sea, current, and proximity of navigational hazards; draft of vessel.

Question 44

BOTH INTERNATIONAL & INLAND A vessel may slacken her speed, stop, or reverse her engines to ________________________.

Reference: Rule 8(e)

Answer 44

Avoid collision; allow more time to assess the situation; or pass at a safe distance

If necessary to avoid collision or allow more time to assess the situation, a vessel shall slacken her speed or take all way off by stopping or reversing her means of propulsion.

Question 45

BOTH INTERNATIONAL & INLAND: A vessel proceeding along a narrow channel shall not overtake any vessels within the channel. TRUE or FALSE?

Refer to COLREG 9(e)

Answer 45

False

In a narrow channel or fairway when overtaking can take place only if the vessel to be overtaken has to take action to permit safe passing, the vessel intending to overtake shall indicate her intention by sounding the appropriate signal.

Question 46

BOTH INTERNATIONAL & INLAND A vessel equipped with operational radar must use this equipment to obtain early warning of risk of collision. TRUE or FALSE

Reference: Rules 7(b)

Answer 46

True

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 47

BOTH INTERNATIONAL & INLAND: In determining “safe speed,” you must take into account the draft of your vessel. TRUE or FALSE

Refer to COLREG 6(a)

Answer 47

True

In determining a safe speed the following factors shall be among those taken into account: State of Visibility; traffic density; maneuverability; presence of background lighting; wind, sea, current, and proximity of navigational hazards; draft of vessel.

Question 48

BOTH INTERNATIONAL & INLAND: A proper lookout shall be maintained only at night and during restricted visibility. TRUE or FALSE

Refer to COLREG 5

Answer 48

False

Every vessel shall at all times maintain a proper look-out by sight and hearing as well as by all available means appropriate in the prevailing circumstances and conditions.

Question 49

BOTH INTERNATIONAL & INLAND: The Rules state that risk of collision shall be deemed to exist whenever a vessel crosses ahead of the intended track of another vessel. TRUE or FALSE

Refer to COLREG 7(d)

Answer 49

False

In determining if risk of collision exists such risk shall be deemed to exist if the compass bearing of an approaching vessel does not appreciably change.

Question 50

INLAND ONLY: You are operating a vessel through a narrow channel and your vessel must stay within the channel to be navigated safely. Another vessel is crossing your course from starboard to port, and you are in doubt as to her intentions. You should sound one short blast to show that you are holding course and speed.

Inland Rule 9(d); 34(d)

Answer 50

False

A vessel which can safely navigate only within that channel or fairway shall use the danger signal prescribed in Rule 34(d) if in doubt as to the intention of the crossing vessel.

Question 51

BOTH INTERNATIONAL & INLAND The rule regarding lookouts applies _______________________.

Reference: Rule 5

Answer 51

At all times

Every vessel shall at all times maintain a proper look-out by sight and hearing as well as by all available means appropriate in the prevailing circumstances and conditions so as to make a full appraisal of the situation and of the risk of collision.

Question 52

BOTH INTERNATIONAL & INLAND: The Rules state that risk of collision shall be deemed to exist if the bearing of an approaching vessel does not appreciably change. TRUE or FALSE

Refer to COLREG 7(d)

Answer 52

True

In determining if risk of collision exists such risk shall be deemed to exist if the compass bearing of an approaching vessel does not appreciably change.

Question 53

BOTH INTERNATIONAL & INLAND Every vessel should at all times proceed at a “safe speed”. “Safe speed” is defined as that speed where ________________________.

Reference: Rule 6

Answer 53

You can take proper and effective action to avoid collision

Every vessel shall at all times proceed at a safe speed so that she can take proper and effective action to avoid collision and be stopped within a distance appropriate to the prevailing circumstances and conditions.

Question 54

BOTH INTERNATIONAL & INLAND According to the Rules, a vessel equipped with operational radar must use their radar to obtain early warning of risk of collision. TRUE or FALSE?

Reference: Rule 7(b)

Answer 54

True

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.