USCG DWO

Question 0

International Rules of the Road apply _____.

Answer 0

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

Question 1

What is a light authorized by the Secretary of the Navy as a additional navigatiinal light for a ship of war?

Answer 1

Flashing amber beacon for submarines

Question 2

The masthead light may be located at other than the fore and aft center line of a vessel _____.

Answer 2

Of special construction.

Question 3

There is a provision to depart from the Rules, if necessary, to avoid _____.

Answer 3

Immediate danger.

Question 4

Completing with the Rules, of what must the mariner take due regard?

Answer 4

Limited backing power of his vessel.
Radar information about nearby vessels.
The occupation of the other vessel, if known.

Question 5

Vessels engaged in fishing according to definitions in the Rules will have _____.

Answer 5

Gear that restricts maneuverability.

Question 6

To be considered “engaged in fishing” under the Rules, a vessel must be _____.

Answer 6

Using fishing apparatus which restricts maneuverability.

Question 7

Nav Rules define a “vessel not under command” as a vessel which _____.

Answer 7

Through some exceptional circumstance is unable to maneuver as required by the Rules.

Question 8

A vessel transferring cargo while underway is classified as _____.

Answer 8

Restricted in her ability to maneuver.

Question 9

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

Answer 9

A risk of collision exists.

Question 10

The term “vessel engaged in fishing” means any vessel fishing with _____.

Answer 10

Nets, lines, trawls, or other fishing apparatus which restricts maneuverability.

Question 11

Vessels considered restricted in her ability to maneuver include:

Answer 11

Laying, servicing, or picking up navigational marks, submarine cables, or pipelines.
Dredging, surveying, or underwater operations.
Replenishment or transferring persons, provisions, or cargo while underway.
Mine clearance operations.
Towing that severely restricts the towing vessel and her toe in their ability to deviate from their course.

Question 12

A “vessel constrained by her draft” must be _____.

Answer 12

A power-driven vessel.

Question 13

Underway

Answer 13

A vessel not at anchor, or made fast to the shore, or aground.

Question 14

“Length” and “breadth” mean _____.

Answer 14

Length overall and greatest breadth.

Question 15

Restricted visibility

Answer 15

Any condition in which visibility is restricted by fog, most, falling snow, heavy rainstorms, sandstorm, or any other similar cases.

Question 16

Wester Rivers

Answer 16

Mississippi River and its tributaries.

Question 17

Great Lakes

Answer 17

The Great Lakes and their connecting tributary waters.

Question 18

Inland Waters

Answer 18

The navigable waters of the United States shoreward if the navigational demarcation lines diving the high seas from harbors, rivers, and other inland water if the US and the Great Lakes in the US side of the International Boundary.

Question 19

Lookout

Answer 19

Every vessel shall at all times maintain a proper lookout 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 the risk of collision.

Question 20

Safe speed

Answer 20

Every vessel shall at all time 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 21

In determining safe speed, the following factors shall be among those taken into account:

Answer 21

State of visibility
Traffic density
Manageability of the vessel with special reference to stopping distance and turning ability in the prevailing conditions

Question 22

If there is any doubt about whether or not the risk of collision exists _____.

Answer 22

Such risk shall be deemed to exist.

Question 23

Action to avoid collision shall be made in _____.

Answer 23

Ample time and with due regard to the observance of good seamanship.

Question 24

Any alteration of course and/or speed to avoid collision shall _____.

Answer 24

Be large enough to be readily apparent to another berserk observing visually or by radar.

Question 25

If necessary to avoid collision or to allow more time to assess the situation, a vessel may _____.

Answer 25

Slacken her speed or take all the all way off by stopping or reversing her means of propulsion.

Question 26

A vessel proceeding along the course of a narrow channel or fairway shall _____.

Answer 26

Keep as near to the outer limit of the channel or fairway which lies on her starboard side as is safe and practicable.

Question 27

A power-driven vessel operating in a narrow channel in the Great Lakes or Western Rivers and proceeding downbound with a following current shall _____.

Answer 27

Have the right of way over an unbound vessel.
Shall propose the manner and place of passage.
Shall initiate the maneuvering signals.

Question 28

A vessel <20 meters OR a sailing vessel shall _____.

Answer 28

Not impede the passage of a vessel that can safely navigate only within a narrow channel or fairway.

Question 29

A vessel engaged in fishing shall not impede the passage of _____.

Answer 29

Any other vessel navigating within a narrow channel or fairway.

Question 30

A vessel shall not cross a narrow channel or fairway if such passage impedes the passage of a vessel which can _____.

Answer 30

Safely navigate only within that channel or fairway.

Question 31

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 _____.

Answer 31

Navigate with particular alertness and caution and shall sound one prolonged blast.

Question 32

Any vessel shall avoid _____ in a narrow channel.

Answer 32

Anchoring

Question 33

A vessel using a traffic separation scheme shall _____.

Answer 33

Proceed in the appropriate lane in the general direction of flow.
Keep clear of a traffic separation line or zone.
Join or leave the lane at the termination of the lane.

Question 34

When joining or leaving a traffic separation lane from either side, a vessel shall do so at _____.

Answer 34

As small an angle to the general direction of traffic flow as practicable.

Question 35

A vessel shall avoid _____ traffic lanes, but it obliged to do so, shall on a heading as nearly as practicable at _____ _____ to the general direction of traffic flow.

Answer 35

Crossing; right angles

Question 36

Which vessels are exempt from complying with traffic separation rules to the extent necessary to carry out the operation?

Answer 36

Restricted in her ability to maneuver

Question 37

Vessels are “in sight” of one another when _____.

Answer 37

Only when one can be observed visually from the other.

Question 38

When each sailing vessel has the wind on a different side, the vessel which has the wind on the _____ side shall keep out of the way of the other.

Answer 38

Port

Question 39

When both sailing vessels have the wind on the same side, the vessel which is to _____ shall keep out of the way of the vessel which is to _____.

Answer 39

Windward; leeward

Question 40

If a sailing vessel with the wind on the port side sees a vessel to windward and cannot determine with certainty whether the other vessel has the wind in the port or the starboard side, she shall _____.

Answer 40

Keep out of the way of the other.

Question 41

Wine are shall be deemed to be the side opposite that on which the _____ is carried or, in the case of a square-rigged vessel, the side opposite to that in which the _____ _____-_____-_____ _____ is carried.

Answer 41

Mainsail; fore-and-aft sail