Nav Rules

Question 0

International rule 1:

International rules of the road apply to?

Answer 0

Upon the high seas and connecting waters navigable by seagoing vessels.

Question 1

A signal of one prolonged and two short blasts is sounded In restricted visibility by a vessel?

Answer 1

Restricted in maneuverability

Question 2

Both;

An authorized light to assist in the identification of submarines operating on the surface in a(n)

Answer 2

Amber(yellow)

Question 3

Both;

What is a light signal authorized by the secretary of the navy as an additional navigational light for a ship of war?

Answer 3

Flashing amber beacon for submarines

Question 4

International;
You are on a vessel that cannot comply with the spacing requirement for masthead lights. What is required in this situation?

Answer 4

The vessel’s light must comply as closely as possible, as determined by her government

Question 5

Both;

The masthead light may be located at other than the fore and aft centerline on a vessel

Answer 5

Of special construction

Question 6

Both; rule 2

Which situation would be a ‘‘special circumstance’’ under the rules?

Answer 6

More than 2 vessels meeting

Question 7

Both;

There is a provision to depart from the rules, if necessary, to avoid

Answer 7

Immediate danger

Question 8

Both;

Complying with the rules, of what must the mariner take due regard

Answer 8

Limited backing power of his vessel.
Radar information about nearby vessel.
The occupational of the other vessel, if known.
*all of the above.

Question 9

Both; rule 3

Vessels engaged in fishing according to definitions in the rules will have.

Answer 9

Gear that restricts maneuverability

Question 10

Both;

To be considered ‘‘engaged in fishing’’ under the rules, a vessel must be

Answer 10

Using fishing apparatus which restricts maneuverability

Question 11

Both;

Nav rules define a ‘‘vessel not under command’’ as a vessel which

Answer 11

From the nature of her work is unable to keep out of the way of another vessel.

Question 12

Both;

A vessel transferring cargo while underway is classified as

Answer 12

Restricted in her ability to maneuver

Question 13

Both;

According to the rules, which vessel is not restricted in her ability to maneuver?

Answer 13

A sailing vessel

Question 14

Inland;

For the purpose of the inland navigation rules, the term ‘‘inland waters’’ includes

Answer 14

The western rivers, extending out the colregs demarcation line.

Question 15

Inland; for the purpose of the inland navigation rules, the term ‘‘inland waters’’ includes

Answer 15

The Great Lakes on the U.S. Side of boundary

Question 16

International;

Which statement is true concerning a vessel ‘‘constrained by her draft’’

Answer 16

She must be a power driven vessel

Question 17

Both;

Which vessel is ‘‘underway’’ within the meaning of the rules?

Answer 17

A vessel drifting with the engine stopped

Question 18

Both;

What those the word ‘‘breadth’’ mean?

Answer 18

Greatest breadth

Question 19

Both; rule 6

A vessel shall slacken her speed, stop, or reverse her engines, if necessary to

Answer 19

Avoid collision.
Allow more time to assess the situation.
Be stopped in an appropriate distance.
#*all the above

Question 20

Both;

The rules state that certain factors are to be taken into account when determining safe speed. Those factors include

Answer 20

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

Question 21

Both; rule 7
Which procedure(s) shall be used to determine risk of collision?

Answer 21

Watching the compass bearing of an approaching vessel.
Systematic observation of objects detected by radar.
Long range radar scanning.
*all of the above

Question 22

Both;

A stand on a vessel to take action to avoid collision she shall, if possible NOT decrease speed.

Answer 22

Turn to port for a vessel on her port side.

Question 23

Both;

You are watching another vessel approach and her compass bearing is not changing. This means that.

Answer 23

A risk of collision exists.

Question 24

Both; rule 8 | When in sight of another vessel, any action taken to avoid Collision must.

Answer 24

Not result in another close quarters situation.

Question 25

Both; | When underway in a narrow channel, a vessel should stay?

Answer 25

To the starboard side of the channel

Question 26

Both; rule 10 | A vessel using a traffic separation scheme shall?

Answer 26

Avoid anchoring in areas near the termination of the scheme.

Question 27

Rule 9

Answer 27

If you are in doubt of a vessels intentions while crossing your path you may sound the danger signal. Do not impede the passage of a vessel showing a black cylinder. A sailing vessel proceeding in a narrow channel can only operate safely in it. No vessel can impede any vessel in that situation.

Question 28

Both; 2 vessels which do not have to comply with the rule regarding traffic separation schemes because of the nature of their work

Answer 28

1)servicing a navigation aid 2)servicing a submarine cable

Question 29

Both; rule 12 | If 2 sailing vessels are running free with the wind on the same side, which one must keep clear of the other?

Answer 29

The one to windward

Question 30

Both; rule 13 | A vessel is overtaking when she can see which lights of a vessel ahead?

Answer 30

Only the stern light of the vessel

Question 31

Both: | Power driven vessels must keep out of the way of sailing vessels except?

Answer 31

When the sailing vessel is overtaking

Question 32

Both: rule 15 You are approaching another vessel, she is about 1 mile distant and is on your starboard bow. You believed she will cross ahead of you. She then sounds a whistle signal of 5 short blast. You should?

Answer 32

Make a large course change, and slow down if necessary

Question 33

Both: when 2 power driven vessels are crossing, the vessel which has the other to starboard must keep out of the way if?

Answer 33

The situation involves risk of collision

Question 34

Inland: | A power driven vessel crossing a river shall keep out of the way of a power-driven vessel when?

Answer 34

Vessel being crossed is ascending or descending the river

Question 35

Both: rule 17 | In order for a stand on vessel to take action in a situation, she must determine that the other vessel?

Answer 35

Is not taking appropriate action

Question 36

Both; rule 18 | A sailing vessel is not required to keep out of the way of a?

Answer 36

Power driven vessel

Question 37

Both: of the vessels listed, which must keep out of the way of all the others?

Answer 37

*A sailing vessel. A vessel restricted in her ability to maneuver. A vessel not under command. A vessel engaged in fishing.

Question 38

Both: a sailing vessel shall keep out of the way of all of the following except?

Answer 38

Not under command. *engaged in pilotage duty. Restricted in her ability to maneuver. Engaged in fishing.

Question 39

Both: a vessel underway and fishing shall keep out of the way of a?

Answer 39

Power driven vessel underway. *Vessel not under command. Vessel sailing. Vessel engaged in pilotage duty.

Question 40

Both: priority 1st

Answer 40

Not under command, restricted in ability to maneuver, constrained by draft, fishing, sailing, power driven, seaplanes

Question 41

Both: rule 19 | Which vessel is the stand on vessel when 2 vessels crossing in a fog are not in sight of one another.

Answer 41

Neither vessel is the stand on vessel

Question 42

Both: | The steering and sailing rules for vessels in restricted visibility apply to vessels?

Answer 42

Navigating in or near an area of restricted visibility.

Question 43

Both: | You hear the fog signal of another vessel forward of your beam. Risk of collision may exist. You must

Answer 43

Take all way off, if necessary

Question 44

Both: You are in restricted visibility and hear a fog signal forward of the beam. Nothing appears on your radar screen you must

Answer 44

Slow to bare steerageway

Question 45

Both: rule 20 | A vessel may exhibit lights other than those prescribed by the rules as long as the additional lights

Answer 45

Do not interfere with the keeping of a proper look out

Question 46

Both: rule 21 | A lantern combining a vessels navigation lights may be shown on a

Answer 46

15 meter sailing vessel

Question 47

Both: | A ''flashing light'', by the definition in the rules is a light that

Answer 47

Flashes at regular intervals at a frequency of 120 flashes or more per minute

Question 48

Inland: | A ''special flashing light'' is a light that

Answer 48

Must be yellow, placed far forward as possible, and it must not show through an arc of no more than 225 degrees

Question 49

Both: rule 24 | A power driven vessel towing astern shall show

Answer 49

A towing light in a vertical line above the stern light

Question 50

Both: | A power driven vessel or barge being towed astern will show

Answer 50

Sidelights and a stern light

Question 51

Inland: | A single vessel being towed alongside shall exhibit

Answer 51

Sidelights, stern light and a special flashing light

Question 52

International: | A single vessel being towed alongside shall exhibit

Answer 52

Sidelights and a stern light

Question 53

Both: rule 26 | Which vessel may show identifying lights when not actually engaged in her occupation?

Answer 53

``` A fishing vessel. A pilot vessel. A mineclearance vessel. *none of the above Green over white-trawling at night, red over white-fishing at night. ```

Question 54

Both: | A vessel engaged in fishing, and at anchor, shall show

Answer 54

An anchor light. Sidelights and a stern light. Three lights in a vertical line, the highest and lowest being red, and the middle being white. *none of the above

Question 55

Both: | Which vessel, when anchored at night, is not required to show anchor lights?

Answer 55

A vessel engaged in fishing

Question 56

Both: | Which vessel must show an after masthead light, if over 50 meters in length

Answer 56

A vessel trawling

Question 57

Both: | Which vessel is fishing is required to show sidelights and stern light when fishing

Answer 57

Underway and making way

Question 58

Both: | which vessels shall turn off their sidelights

Answer 58

All vessels that are not under command

Question 59

Both: rule 27 | A vessel restricted in her ability to maneuver shall

Answer 59

Turn off her sidelights when not making way

Question 60

Both: | A vessel will not show sidelights when

Answer 60

Not under command, not making way

Question 61

Both: | A vessel servicing a pipeline during day shapes shall display

Answer 61

3 black shapes in a vertical line; the highest and lowest are balls, and the middle 1 a diamond

Question 62

Both: You are approaching a vessel dredging during the day and see 2 balls in a vertical line on the port side of the dredge. These shapes mean that

Answer 62

There is an obstruction on the port side of the dredge

Question 63

Both: | Which vessel, when anchored at night, would not be required to show anchor lights

Answer 63

A vessel dredging

Question 64

Both: | Which vessel when anchored at night, would not be required to show anchor lights

Answer 64

A vessel engaged in underwater operations

Question 65

Both: rule 30 | Working lights shall be used to illuminate the decks of a vessel

Answer 65

Over 100 meters at anchor

Question 66

Both: | When anchoring a 25 meter vessel at night, you must show

Answer 66

One all round white light

Question 67

Both: | What is the minimum length of vessels required to show two anchor lights

Answer 67

50 meters

Question 68

Inland: A barge more than 50 meters long, at anchor in a ''special anchorage area designated by the secretary'', is required to show how many white lights

Answer 68

Two A vessel less than 12 meters may have any sounding apparatus. A vessel 12-99 meters must have a whistle and a bell. A vessel 100 meters+must have a whistle, bell, and a gong.

Question 69

International: 34-35 | When moving from a berth alongside a quay(warf) a vessel must sound

Answer 69

No signal is required

Question 70

International: | What whistle signal, if any, would be sounded when 2 vessels are meeting, but will pass clear starboard to starboard

Answer 70

No signal is required

Question 71

International: | Which whistle signal may be sounded by one of two vessels in sight of each other?

Answer 71

1 short blast

Question 72

Inland: | Whistle signals shall be exchanged by vessels in sight of one another when

Answer 72

They are passing within half a mile of each other

Question 73

Inland: 2 vessels are in a starboard to starboard meeting situation and will pass well clear approximately 1/4 mile apart. Which action should each vessel take?

Answer 73

Sound a 2 blast whistle signal and maintain course

Question 74

International: | Your vessel is backing out of a slip in a harbor and you can see that other vessels are approaching

Answer 74

You should sound 3 short blasts when leaving the slip

Question 75

International: | Which signal is sounded only by a vessel in sight of another?

Answer 75

1 short blast on the whistle

Question 76

Inland: While underway and in sight of another vessel a mile ahead you put your engines on astern propulsion. Which statement concerning whistle signal is true?

Answer 76

You need not sound any whistle signal

Question 77

International: | Uses a all round white light for passing signals, what does inland use?

Answer 77

A all round white or yellow light for passing signals

Question 78

Both: | Which statement is true concerning the light used with whistle signal

Answer 78

It is only used to supplement short blasts of the whistle

Question 79

International: | In a narrow channel, an overtaking vessel which intends to pass on the other vessels port side would sound

Answer 79

2 prolonged followed by 2 short blast

Question 80

International: | If you agree to being overtaken in a narrow channel you would sound

Answer 80

1 prolonged blast, 1 short, 1 prolonged, 1 short

Question 81

Both: | Which vessel may sound the danger signal

Answer 81

Either vessel in meeting situation. The give way vessel in a crossing situation. A vessel at anchor. *all of the above

Question 82

Inland: | What is the whistle signal for a power driven vessel leaving a dock or berth?

Answer 82

1 prolonged blast

Question 83

Both: | Fog signals, required under the rules for vessels underway, shall be sounded

Answer 83

At intervals of not more than two minutes.

Question 84

Both: | You hear a vessel ahead sound two short blasts on the whistle. You should?

Answer 84

Sound only fog signals until the other vessel is sighted.

Question 85

Both: You are in charge of a power driven vessel making way in dense fog. You observe what appears to be another vessel on radar half a mile distant on your port bow and closing you must?

Answer 85

Sound one prolonged blast

Question 86

Both: | A power driven vessel towing in fog shall sound

Answer 86

One prolonged and two short blasts every two minutes

Question 87

Both: | In restricted visibility, a vessel fishing with nets shall sound at intervals of two minutes?

Answer 87

One prolonged followed by two short blasts.

Question 88

Both: | In reduced visibility, you hear two prolonged blasts of a whistle. This signal is sounded by a?

Answer 88

Power driven vessel dead in water.

Question 89

Both: Your vessel is 75 meters in length and restricted in her ability to maneuver. Visibility is restricted. What signal do you sound if you are carrying out your work at anchor?

Answer 89

1 prolonged blast followed by 2 short blasts on the whistle at intervals no greater than 2 minutes

Question 90

Both: | A sailing vessel with the wind abaft the beam is navigation in fog. She should sound?

Answer 90

1 prolonged and 2 short blasts

Question 91

Both: | A tug is towing 3 manned barges in line in fog. The first vessel of the tow should sound?

Answer 91

No fog signal

Question 92

Both: | A fog signal of 1 short, 1 prolonged, 1 short blast may be sounded by a

Answer 92

Vessel at anchor

Question 93

Both: | Fog signal for vessels at anchor or aground shall be sounded at intervals of not more than

Answer 93

1 minute

Question 94

Both: | A vessel 50 meters in length at anchor must sound which fog signal?

Answer 94

5 second ringing of a bell every minute

Question 95

Both: You are underway in fog when you hear the rapid ringing of a bell for five seconds followed by the sounding of a gong for five seconds. This is a vessel?

Answer 95

More than 100 meters in length, at anchor

Question 96

Both: | A 95-meter vessel aground sounds this fog signal.

Answer 96

A rapid ringing of 5 seconds proceeded and followed by 3 separate and distinct strokes in the bell

Question 97

Both: | A bell is used to sound a fog signal for a?

Answer 97

Sailing vessel at anchor.