I'NTL & INLAND - According to the rules, any vessel may slacken her speed, stop or reverse her engines to: 

• Allow more time to assess a situation
• Create a crossing situation
• Change a situation to her favor
• attract the attention of another vessel

Inland only - you are in a crossing situation with a vessel that you can see on your starboard bow.  You have agreed, via radiotelephone, that you will pass astern of the other vessel.  You SHALL:

• avoid crossing ahead of the other vessel
• sound 2 short blasts
• sound one short blast
• alter course to starboard

Intl & Inland - at night you see ONLY a single green light ahead of you.  Of the vessels listed, which would it be?

• A power driven vessel not making way
• A power driven vessel underway
• A vessel at anchor
• A sailboat

• A sailboat

Intl & Inland - A vessel exhibiting an all around red light directly over an all around white light

• A pilot on station
• engaged in underwater construction
• under sail and machinery power
• engaged in fishing, other than trawling

• engaged in fishing, other than trawling

Intl & Inland - a vessel shall be deemed to be overtaking another vessel at night, she can see

• any lights except the masthead lights of the other vessel
• only the sternlight of the other vessel
• a sidelight and one masthead light of the other vessel
• only a sidelight of the other vessel

• only the sternlight of the other vessel

Intl & Inland - 2 power driven vessels insight of one another, and meeting in a "heads-on" situation, are directed by the Rules to:

• alter course to port and pass starboard to starboard
• not come within less than 1/2 mile from each other
• alter course to starboard and pass port to port
• slow to bare steerageway

• alter course to starboard and pass port to port

Intl & Inland - You are on the stand-on vessel in a crossing situation.  The give-way vessel's intentions are unclear to you.  Of the actions listed, which is True?

• Sounding 3 short blasts is required
• Sounding the danger signal is optional
• Sounding one short blast is optional
• Sounding the danger signal is required

• Sounding the danger signal is required

Inland only - vessels engaged in government sanctioned public safety activities may display

• Alternately flashing red and yellow lights
• A high density white flashing light
• An intermittent flashing amber beacon with the characteristics of 1 flash per second for 3 seconds and a 3 second off period
• A flashing blue light

INLAND only - In addition to the required light(s) and shapes(s), what MAY be used to indicate the presence of a partly submerged object being towed?

• The beam of the towing vessels searchlight, aimed in the direction of the tow
• A black cone with its apex pointed upward
• A strobe light on the object being towed
• Two all around yellow lights at each end of the object being towed

• The beam of the towing vessels searchlight, aimed in the direction of the tow

Intl & Inland - The rules state that certain factors are to be taken into consideration when determining "safe Speed." Those factors include:

• Availability of aids to navigation
• maximum attainable speed of your vessel
• the proximity of navigational hazards
• ambient air temperature

INLAND ONLY - Passing agreements made by whistle signals apply to:

• power driven vessels in sight of each other
• all types of vessels, when not in sight of each other
• power driven vessels in sight of each other, when meeting or crossing within 1/2 mile
• all types of vessels, when within one mile of each other

rule 34

• power driven vessels in sight of each other, when meeting or crossing within 1/2 mile

INLAND ONLY - You see a flashing yellow light, flashing 60 times a minute, between red and green lights.  You are looking at?

• Sidelights and towing light
• Sidelights and a sternlight
• Sidelights and a special flashing light
• Sidelights, a towing light and a  a sternlight

INTL & INLAND - You are on a power driven vessel, and ahead you sight sidelights and two masthead lights in a vertical line.  Of the actions listed, which is required by the rules

• Substantially alter your course to port
• Carefully monitor the other vessel
• Contact the vessel by radiotelephone
• Substantially alter your course to starboard

INLAND ONLY - Which signal SHALL a 15-meter (49 ft) power-driven vessel, at anchor in a "special anchorage area" designated by the Secretary sound?

• 3 blasts on her whistle short, prolonged, short
• Rapid ringing of a bell for 5 seconds every minute
• Rapid ringing of the bell for 5 seconds every 2 minutes
• None, she would be exempt

INLAND ONLY - At night, you see 2 yellow lights in a vertical line with a single white light to their right.  This should indicate to you the presence of a(n)

• vessel engaged in fishing
• vessel towing, with an alongside tow
• vessel not under command
• opening in a dredge pipeline

Intl & Inland - a vessel in distress MAY use or exhibit which of the signals listed below?

• Any square shape under a black ball
• Raising a white flag on mainmast
• A rocket parachute flare - yellow light
• A rocket parachute flare - red light

Intl & Inland - A vessel engaged in fishing by trawling is only required to show sidelights and a sternlight when she is:

• Not making way
• Making way
• drifting
• hauling nets

Intl & Inland - Vessels over 12 meters in length, at anchor in restricted visibility, SHALL sound signals

• At intervals of not more than one minute
• at intervals of not more than two minutes
• only when vessels are in sight of one another
• only when being approached by another vessel

Rule35

• At intervals of not more than one minute

Int'l & Inland - You are on a private pleasure craft, drifting but in no way disabled.  You see a power driven vessel approaching your starboard beam.  Which statement is TRUE?

• You should be displaying the lights for a vessel not under command
• The other vessel is the give-way because you are stopped
• You should be displaying shapes for a vessel not under command
• You are the give-way vessel in a crossing situation

• You are the give-way vessel in a crossing situation

Int'l & Inland - A vessel towing astern, with a length of tow that exceeds 200m will display

• one ball
• one diamond
• one cone with its apex pointed up
• two cones with their apexes together

Int'l & Inland - a vessel with a tow is severely restricted in her ability to change course, she shall exhibit

• two black balls with a diamond between them
• a ball
• a black diamond
• two cones with their apexes together

Int'l & Inland - a towing light is a yellow light with the same arc of visibility as a(n)

• sternlight
• sidelight
• masthead light
• anchor light

Int'l & Inland - One of the definitions of Restricted Visibility is nighttime

TRUE OR FALSE

Int'l & Inland - You are on a sailing vessel, and see a power-driven vessel with a bow aspect, dead ahead.  You SHALL

• Slow to bare steerageway
• Keep your course and speed as the sailboat is the stand-on vessel
• alter course to port
• alter course to starboard

Int'l & Inland - You're in charge of a patrol boat, preparing to cross a narrow channel.  A large container ship is off your port bow, with a steady bearing and a decreasing distance.  Which statement is TRUE concerning this situation

• You are the stand-on vessel
• You should maintain course and speed
• If the deep-draft doesn't display a cylinder, it gets no privileges
• You are not to impede the safe passage of the container ship

INLAND ONLY A vessel proceeding downstream in a narrow channel on the Western Rivers sights another vessel moving upstream. Which vessel has the right of way?
Check the correct answer and "click" guess
 The vessel moving upstream against the current
 The vessel moving downstream with a following current
 The vessel located more towards the channel centerline
 The vessel sounding the first whistle signal

INLAND ONLY If you were coming up on another power-driven vessel from dead astern and desired to overtake on the other vessel's starboard side, which whistle signal would you sound?
Check the correct answer and "click" guess
 One short blast
 One prolonged blast
 Two short blasts
 Two prolonged blasts

INT'L & INLAND There are two classes of vessel which, to the extent necessary to carry out their work, do no have to comply with the rule regarding traffic separation schemes. One of these is a vessel _______________.

a. engaged in fishing in a traffic lane
b. servicing a submarine cable
c. towing another
d. engaged on pilotage duty

servicing a submarine cable

Rule 10(l)

INLAND ONLY What lights are required for a single barge being towed alongside? 

a. sidelights and a sternlight
b. sidelights, a special flashing light, and a sternlight
c. sidelights and a special flashing light
d. sidelights, a towing light, and a sternlight

b. sidelights, a special flashing light, and a sternlight

Rule 24(f)(ii)

INT'L ONLY A vessel not under command sounds the same fog signal as a vessel _______________ 

a. engaged in towing
b. constrained by her draft
c. under sail
d. All of the above

INT'L & INLAND A vessel which is restricted in her ability to maneuver under the Rules is a vessel which is _______________ 

a. mine clearing
b. engaged in fishing
c. at anchor
d. not under command

a. mine clearing

Rule 3(g)(v)

INT'L & INLAND Which vessel must show an after masthead light if over 50 meters in length? 

a. A vessel engaged in fishing (R 26c)
b. A vessel at anchor (R30a)
c. A vessel not under command (R27b)
d. A vessel trawling (R26(b)(ii))

 INT'L & INLAND Which factor is listed in the Rules as one which must be taken into account when determining safe speed?

a. The construction of the vessel
b. The maneuverability of the vessel
c. The experience of vessel personnel
d. All of the above must be taken into account

b. The maneuverability of the vessel

Rule 6(a)(iii)

INT'L & INLAND Fog signals for vessels as anchor or aground shall be sounded at intervals of not more than _______________

a. 15 minutes
b. 5 minutes
c. 2 minutes
d. 1 minute

1 minute

Rule 35(f)

INLAND ONLY Which light display would mark the opening in a pipeline where vessels could pass through?

a. Three red lights in a vertical line on each side of the opening
b. Two red lights in a vertical line on each side of the opening
c. Three white lights in a vertical line on each side of the opening
d. Two white lights in a vertical line on each side of the opening

b. Two red lights in a vertical line on each side of the opening

Annex V §88.15(b)

INLAND ONLY You are meeting another vessel in inland waters and she sounds one short blast on the whistle. This means that she _______________

a. is changing course to starboard
b. is changing course to port
c. intends to leave you on her port side
d. desires to depart from the Rules

c. intends to leave you on her port side

Rule 34(a)(i)

INT'L & INLAND A vessel restricted in her ability to maneuver is one which _______________

a. through some exceptional circumstance is unable to maneuver as required by the Rules
b. from the nature of her work is unable to maneuver as required by the Rules
c. due to adverse weather conditions is unable to maneuver as required by the rules
d. has lost steering and is unable to maneuver

b. from the nature of her work is unable to maneuver as required by the Rules

Rule 3(g)

INT'L & INLAND Traffic separation schemes _______________

a. provide routing and scheduling procedures to reduce shipping delays
b. provide traffic patterns in congested areas so that vessels can operate without a separate lookout
c. provide inbound and outbound lanes to promote the safe flow of vessel traffic
d. prohibit vessels carrying hazardous cargo from entering waters that are environmentally sensitive

c. provide inbound and outbound lanes to promote the safe flow of vessel traffic

Rule 10 (not exact wording)

INT'L & INLAND Which statement is TRUE concerning a 75-meter power-driven vessel underway at night?

a. She must exhibit an all-round white light at the stern
b. She must exhibit forward and after masthead lights
c. She must exhibit only a forward masthead light
d. She may exhibit a red light over a green light forward

b. She must exhibit forward and after masthead lights

Rule 23(a)(ii)

INT'L & INLAND Day shapes must be displayed _______________

a. between sunset and sunrise
b. only between 8 AM and 4 PM
c. during daylight hours in any visibility
d. during daylight hours in unrestricted visibility only

c. during daylight hours in any visibility

Rule 20(d)

INT'L & INLAND A power-driven vessel underway in fog making NO way must sound what signal?

a. One long blast
b. Two prolonged blasts
c. One prolonged
d. One prolonged and two short blasts

b. Two prolonged blasts

Rule 35(b)

INT'L & INLAND At specified intervals, a vessel towing in fog shall sound _______________

a. one prolonged blast
b. two prolonged blasts
c. one prolonged and two short blasts in succession
d. one prolonged and three short blasts in succession

c. one prolonged and two short blasts in succession

Rule 35(c)

INT'L & INLAND Which statement is true concerning the light used to accompany whistle signals?

a. It is only used to supplement short blasts of the whistle
b. It is mandatory to use such a light
c. The light shall have the same characteristics as a masthead light
d. All of the above

a. It is only used to supplement short blasts of the whistle

Rule 34(b)

INT'L & INLAND A vessel 25 meters in length must have which sound signaling appliance onboard?

a. None in required
b. Whistle only
c. Whistle and bell only
d. Whistle, bell and gong

c. Whistle and bell only

Rule 33

INT'L & INLAND A vessel underway and fishing shall keep out of the way of a _______________

a. power-driven vessel underway
b. vessel not under command
c. vessel sailing
d. vessel engaged on pilotage duty

b. vessel not under command

Rule 18(c)

INT'L & INLAND A power-driven vessel making way through the water sounds which fog signal?

a. Two short blasts every one minute
b. One short blast every one minute
c. Two prolonged blasts every two minutes
d. One prolonged blast every two minutes  

d. One prolonged blast every two minutes

Rule 35 (c)

INT'L & INLAND Which vessel is NOT to impede the passage of a vessel which can only navigate safely within a narrow channel?

a. Any vessel less than 20 meters in length
b. Any sailing vessel
c. A vessel engaged in fishing
d. All of the above

d. All of the above

Rule 9(b)(c)

INT'L & INLAND The sternlight shall be positioned such that it will show from dead astern to how many degrees on each side of the stern of the vessel?

a. 22.5°
b. 67.5°
c. 112.5°
d. 135°

b. 67.5°

Rule 21(c)

INLAND ONLY At night, what lights are required on barges moored in a group formation at a river bank?

a. A flashing yellow light placed at each of the upstream and downstream ends of the group
b. A white light placed at the corners farthest from the bank of each barge in the group
c. A white light placed at the corners farthest from the bank on each of the upstream and downstream ends of the group
d. Two red lights in a vertical line placed at the corners farthest from the bank on each of the upstream and downstream ends of the 

group

c. A white light placed at the corners farthest from the bank on each of the upstream and downstream ends of the group

Rule 28

INT'L & INLAND A vessel at anchor will show a ____________

a. ball
b. cone
c. cylinder
d. double cone, apexes together

a. ball

Rule 30 (d)

INT'L ONLY Which statement is TRUE according to the Rules?

a. A vessel engaged in fishing while underway shall, so far as possible, keep out of the way of a vessel restricted in her ability to maneuver
b. A vessel not under command shall keep out of the way of a vessel restricted in her ability to maneuver
c. A vessel engaged in fishing shall keep out of the way of a sailing vessel
d. A vessel not under command shall keep out of the way of a vessel engaged in fishing

a. A vessel engaged in fishing while underway shall, so far as possible, keep out of the way of a vessel restricted in her ability to 

maneuver

Rule 25 (e)

INLAND ONLY What is not contained in the Inland Navigation Rules?

a. An inconspicuous, partially submerged object
b. Lights on pipelines
c. A vessel constrained by her draft
d. An air-cushion vessel

c. A vessel constrained by her draft

see Rule 18 

a. R 22 & 24 b. Annex V §88.15 d. R 23

INT'L & INLAND A 45-meter vessel is pulling a 210-meter tow. She may exhibit _______________

a. a masthead light forward and two masthead lights in a vertical line aft
b. three masthead lights forward and one aft
c. two masthead lights forward and no after masthead light
d. three masthead lights aft and none forward

b. three masthead lights forward and one aft

Rule 24(a)(iv)

INT'L & INLAND A power-driven vessel towing another vessel astern (tow less than 200 meters) shall show _______________

a. three masthead lights in a vertical line instead of either the forward or after masthead light
b. two masthead lights in a vertical line instead of either the forward or after masthead light
c. two towing lights in a vertical line at the stern
d. a small white light aft of the funnel

b. two masthead lights in a vertical line instead of either the forward or after masthead light

Rule 24(a)(ii)

INT'L & INLAND You are underway in fog and hear one short, one prolonged, and one short blast in succession. What is the meaning of this signal?

a. A vessel is in distress and needs assistance
b. A vessel is fishing, hauling nets
c. A vessel is at anchor, warning of her position
d. A vessel is towing

c. A vessel is at anchor, warning of her position

Rule 35(g)

INLAND ONLY A power driven vessel crossing a river on the Western Rivers has the right of way over _______________

a. vessels ascending the river
b. vessels descending the river
c. all vessels ascending and descending the river
d. None of the above

d. None of the above

Rule 15(b)

INT'L & INLAND A vessel approaching your vessel from 235° relative is in what type of situation?

a. Meeting
b. Overtaking
c. Crossing
d. Passing

b. Overtaking

Rule 13(b)

INT'L ONLY You are underway in a fog when you hear a whistle signal of one prolonged blast followed by two short blasts. This signal could indicate all of the following except a vessel _______________

a. being towed
b. not under command
c. fishing with trawls
d. towing astern

a. being towed

Rule 35(c) & (d)

INT'L & INLAND A continuous sounding of a fog-signal apparatus indicates _______________

a. the vessel is in distress
b. the vessel has completed loading dangerous cargo
c. it is safe to pass
d. the vessel is anchored

a. the vessel is in distress

Rule 37

INT'L & INLAND In a traffic separation scheme, when joining a traffic lane from the side, a vessel shall do so ___

a. only in case of an emergency or to engage in fishing within the zone
b. as nearly as practical at right angles to the general direction of traffic flow
c. at as small an angle as possible
d. only to anchor within the zone

c. at as small an angle as possible

Rule 10(b)(iii)

INT'L & INLAND If you are the stand-on vessel in a crossing situation you may take action to avoid a collision by your maneuver alone. When may this action be taken?

a. At any time you feel it is appropriate
b. Only when you have reached extremis
c. When you determine that your present course will cross ahead of the other vessel
d. When it becomes apparent to you that the give-way vessel is not taking appropriate action

d. When it becomes apparent to you that the give-way vessel is not taking appropriate action

Rule 17(a)(ii)

INT'L & INLAND A towing light, according to the Rules, is a _______________

a. white light
b. red light
c. yellow light
d. blue light

c. yellow light

Rule 35(f)

INT'L ONLY Vessel A is overtaking vessel B on open waters and will pass without changing course. Vessel A ___

a. should sound two short blasts
b. should sound the danger signal
c. should sound one long blast
d. will not sound any whistle signal

d. will not sound any whistle signal

not exact wording Rule 34(a)

INT'L & INLAND When taking action to avoid collision, you should _______________

a. make sure the action is taken in enough time
b. not make any large course changes
c. not make any large speed changes
d. All of the above

a. make sure the action is taken in enough time

Rule 8(a)

INT'L & INLAND Which is a distress signal?

a. A triangular flag above or below a ball
b. The INT'L Code Signal of distress indicated by JV
c. A green smoke signal
d. Flames on the vessel as from a burning tar barrel

d. Flames on the vessel as from a burning tar barrel

Rule 37

INT'L ONLY Of the vessels listed, which must keep out of the way of all the others?

a. A vessel constrained by her draft
b. A vessel restricted in her ability to maneuver
c. A vessel pushing a barge
d. A vessel engaged in fishing

c. A vessel pushing a barge

(not exact wording) Rule 18

INT'L & INLAND You are underway in reduced visibility. You hear the fog signal of another vessel about 20° on your starboard bow. Risk of collision may exist. You should _______________

a. alter course to starboard to pass around the other vessel
b. reduce your speed to bare steerageway
c. slow your engines and let the other vessel pass ahead of you
d. alter course to port to pass the other vessel on its portside

b. reduce your speed to bare steerageway

Rule 19(e)

INT'L & INLAND Which is a light signal authorized by the Secretary of the Navy as an additional navigational light for a ship of war?

a. Flashing amber beacon for submarines
b. Green masthead and yardarm lights indicating mine clearance operations
c. Red-white-red lights in a vertical line for a carrier launching aircraft
d. Yellow flares indicating torpedo firing exercises

a. Flashing amber beacon for submarines

Rule 1(c) Footnote 1

INT'L & INLAND Which vessel would sound a fog signal consisting of the ringing of a bell for 5 seconds?

a. A vessel engaged in fishing, at anchor
b. A vessel restricted in its ability to maneuver, at anchor
c. A sailing vessel, at anchor
d. All of the above

d. All of the above

Rule 35(g)

INT'L & INLAND A vessel engaged in fishing shall keep out of the way of a vessel _______________

a. under sail
b. restricted in her ability to maneuver
c. crossing a channel
d. crossing a channel

b. restricted in her ability to maneuver

Rule 18

Int'l ONLY - The use of which type lights SHALL be avoided when attempting to attract the attention of another vessel

Rule 36

If necessary to attract the attention of another vessel, any vessel may make light or sound signals that cannot be mistaken for any signal authorized elsewhere in these Rules, or may direct the beam of her searchlight in the direction of the danger, in such a way as not to embarrass any vessel.

Int'l & Inland - A vessel engaged in fishing by trawling is only required to show sidelights and a sternlight when she is

Rules 26.b.3

making way

INLAND ONLY Which statement is TRUE concerning the Inland Navigation Rules?
 They list requirements for Traffic Separation Schemes.
 They define moderate speed.
 They require communication by radiotelephone to reach a passing agreement.
 All of the above

INLAND ONLY Whistle signals shall be exchanged by vessels in sight of one another when __________.
 they are passing within half a mile of each other
 passing agreements have been made by radio
 course changes are necessary to pass
 doubt exists as to which side the vessels will pass on

INLAND ONLY A barge more than 50 meters long would be required to show how many white anchor lights when anchored in a Secretary approved "special anchorage area"?
 1
 2
 3
 None

INLAND ONLY Which is TRUE of a vessel downbound with a following current when meeting an upbound vessel on the Western Rivers?
 She has the right-of-way only if she is a power-driven vessel.
 She has the right-of-way only if she has a tow.
 She does not have the right-of-way, since the other vessel is not crossing the river.
 She must wait for a whistle signal from the upbound vessel.

INLAND ONLY A vessel of less than 20 meters in length at anchor at night in a "special anchorage area designated by the Secretary" 
 must show one white light
 need not show any lights
 must show two white lights
 need show a light only on the approach of another vessel

INLAND ONLY A towing vessel pushing ahead on the Western Rivers above the Huey P. Long bridge must show __________.
 sidelights only
 sidelights and towing lights
 sidelights, towing lights, and two masthead lights
 sidelights, towing lights, and three masthead lights

INLAND ONLY Which is CORRECT regarding a "special flashing light"?
 It must be yellow in color.
 It must be placed as far forward as possible.
 It must not show through an arc of more than 225°.
 All of the above

INLAND ONLY Which is TRUE of a power-driven vessel, bound downstream, when meeting an upbound vessel on the Western Rivers?
 She has the right-of-way.
 She shall propose the manner of passage.
 She shall initiate maneuvering signals.
 All of the above

INLAND ONLY Which statement is TRUE concerning the light used for maneuvering signals?
Check the correct answer and "click" guess
 It must be synchronized with the whistle.
 It may be white or yellow.
 It must be an all-round light.
 All of the above

D
All of the above

The duration of each flash shall be about 1 second; and

(iii) The light used for this signal shall, if fitted, be one all-round white or yellow light, visible at a minimum range of 2 miles, synchronized with the whistle, and shall comply with the provisions of Annex I to these Rules.

RULE 34

INLAND ONLY A power-driven vessel when pushing ahead or towing alongside on the Western Rivers (above the Huey P. Long Bridge on the Mississippi River) shall exhibit:
 two masthead lights, sidelights, and stern light
 two masthead lights, sidelights, and two towing lights
 sidelights and two towing lights
 one masthead light, sidelights, and stern light

INLAND ONLY Which statement is TRUE concerning the fog signal of a sailing vessel 25 meters in length, anchored in a "special anchorage area" approved by the Secretary?
 The vessel is not required to sound a fog signal.
 The vessel shall ring a bell for 5 seconds every min.
 The vessel shall sound one blast of the whistle every 2 min.
 The vessel shall sound three blasts on the whistle every 2 min.

B
The vessel shall ring a bell for 5 seconds every minute

(j) The following vessels shall not be required to sound signals as prescribed in paragraph (f) of this Rule when anchored in a special anchorage area designated by the Secretary:

(i) a vessel of less than 20 meters in length; and

(ii) a barge, canal boat, scow, or other nondescript craft.

INLAND ONLY You are the stand-on vessel in a crossing situation. The other vessel is showing an alternating red and yellow light. Which action should you take?
 Stand on.
 Heave to.
 Alter course to assist.
 Yield the right-of-way.

INLAND ONLY Signals shall be sounded by a power-driven vessel intending to overtake
 any vessel when within 1/2 mile of that vessel
 another power-driven vessel when both power-driven vessels are in sight of one another
 any vessel when both are in sight of one another
 another power-driven vessel only when within 1/2 mile of that power-driven vessel

INLAND ONLY Maneuvering signals shall be sounded on inland waters by:
 all vessels when meeting, crossing, or overtaking and in sight of one another
 all vessels meeting or crossing at a distance within half a mile of each other and not in sight of one another
 power-driven vessels overtaking and in sight of one another
 power-driven vessels crossing at a distance within half a mile of each other and NOT in sight of one another

BOTH INTL & INLAND You see a vessel displaying the code flag "LIMA" below which is a red ball. The vessel is __________.
 trolling
 getting ready to receive aircraft
 aground
 in distress

D
in distress

(You can use any flag and any ball)

BOTH INTL & INLAND You are making headway in fog and hear a fog signal of two prolonged blasts on your starboard quarter. You should:
 stop your vessel
 change course to the left
 change course to the right
 hold your course and speed

BOTH INTERNATIONAL & INLAND You are on vessel "A" and approaching vessel "B" as shown. You are not sure whether your vessel is crossing or overtaking vessel "B". You should __________.
 change course to make the situation definitely either crossing or overtaking
 consider it to be a crossing situation
 consider it to be an overtaking situation
 consider it a crossing situation if you can cross ahead safely

C
consider it to be an overtaking situation

Rule 13 (c) When a vessel is in any doubt as to whether she if overtaking another, she shall assume that this is the case and act accordingly.

BOTH INTERNATIONAL & INLAND Which statement is TRUE concerning two sailing vessels?
 A sailing vessel with the wind forward of the beam on her port side shall keep out of the way of a sailing vessel with the wind forward of the beam on the starboard side.
 When both vessels have the wind on the same side, the vessel to leeward shall keep out of the way.
 A sail vessel with the wind abaft of the beam must keep out of the way of a vessel sailing into the wind.
 None of the above

A sailing vessel with the wind forward of the beam on her port side shall keep out of the way of a sailing vessel with the wind forward of the beam on the starboard side.

Rule 12.a.(i) when each has the wind on a different side, the vessel which has the wind on the port side shall keep out of the way of the other;

BOTH INTERNATIONAL & INLAND A 50-meter vessel is towing astern and the length of the tow is 100 meters. In addition to sidelights, which lights may she show to fully comply with the Rules?
 Two masthead lights forward, a stern light, and a towing light above the stern light
 A masthead light forward, two masthead lights aft, a stern light, and a towing light above the stern light
 No masthead light forward, two masthead lights aft, a stern light, and a towing light above the stern light
 Three masthead lights forward, one masthead light aft, and two towing lights in a vertical line at the stern

BOTH INTERNATIONAL & INLAND At night, you are towing a partly submerged vessel, 20 meters in length and 4 meters in breadth. What lights must you display on the towed vessel?
 A white light at the stern
 Two white lights side by side at the stern
 A white light at the forward end and a white light at the after end
 Two red lights in a vertical line at the after end

C
A white light at the forward end and a white light at the after end

(h) if it is less than 25 meters in breadth, one all-round white light at or near the forward end and one at or near the after end except that dracones need not exhibit a light at or near the forward end; 

(i) if it is 25 meters or more in breadth, two additional all-round white lights at or near the extremities of its breadth;

BOTH INTL & INLAND An anchored vessel is servicing an aid to navigation and is restricted in her ability to maneuver. Which lights will she show?
 Three lights in a vertical line, the highest and lowest red and the middle white, and anchor lights
 Three lights in a vertical line, the highest and lowest red and the middle white, ONLY
 Anchor lights ONLY
 Anchor lights and sidelights ONLY

BOTH INTL & INLAND A vessel not under command, underway but not making way, would show __________.
 two all-round red lights in a vertical line
 sidelights
 a stern light
 All of the above

BOTH INTL & INLAND Which vessel must show a masthead light abaft of and higher than her identifying lights?
 A 55-meter vessel fishing
 A 55-meter vessel trawling
 A 100-meter vessel not under command
 A 20-meter vessel engaged on pilotage duty

B
A 55-meter vessel trawling

26.b.(ii) a masthead light abaft of and higher than the all-round green light; a vessel of less than 50 meters in length shall not be obliged to exhibit such a light but may do so;

BOTH INTL & INLAND Rule 14 describes the action to be taken by vessels meeting head-on. Which of the following conditions must exist in order for this rule to apply?
 Both vessels must be power-driven.
 They must be meeting on reciprocal or nearly reciprocal courses.
 The situation must involve risk of collision.
 All of the above

BOTH INTL & INLAND Which vessel, when anchored at night, would NOT be required to show anchor lights?
 A power-driven vessel
 A vessel on pilotage duty
 A vessel dredging
 A vessel restricted in her ability to maneuver

BOTH INTL & INLAND Which vessel would exhibit sidelights when underway and not making way?
 A vessel towing astern
 A vessel trawling
 A vessel not under command
 A vessel engaged in dredging operations

BOTH INTL & INLAND Two barges are being pushed ahead by a tugboat. Which statement is TRUE concerning lights on the barges?
 Each vessel should show sidelights.
 Each vessel should show at least one white light.
 The barges should be lighted as separate units.
 The barges should be lighted as one vessel.

BOTH INTL & INLAND Which vessel is the stand-on vessel when two vessels crossing in fog are NOT in sight of one another?
 The vessel which has the other on her own starboard side
 The vessel which has the other on her own port side
 The one which hears the other's fog signal first
 Neither vessel is the stand-on vessel.

Question #148
INLAND ONLY A power-driven vessel pushing ahead or towing alongside on the Mississippi River, above the Huey P. Long Bridge, shall carry __________.
 two masthead lights, sidelights, and stern light
 two masthead lights, sidelights, and two towing lights
 sidelights and two towing lights
 one masthead light, sidelights, and stern light

C
sidelights and two towing lights

{No Mast Head Lights}

(c) A power-driven vessel when pushing ahead or towing alongside, except as required by paragraphs (b) and (i) of this Rule, shall exhibit:

(i) instead of the light prescribed either in Rule 23(a)(i) or 23(a)(ii), two masthead lights in a vertical line;

(ii) sidelights; and

(iii) two towing lights in a vertical line.

(i) Notwithstanding paragraph (c), on the Western Rivers (except below the Huey P. Long Bridge on the Mississippi River) and on waters specified by the Secretary, a power-driven vessel when pushing ahead or towing alongside, except as paragraph (b) applies, shall exhibit:

(i) sidelights; and

(ii) two towing lights in a vertical line.

Question #207
INLAND ONLY Signals shall be sounded by a power-driven vessel intending to overtake __________.
 any vessel when within half a mile of that vessel
 another power-driven vessel when both power-driven vessels are in sight of one another
 any vessel when both are in sight of one another
 another power-driven vessel only when within half a mile of that power-driven vessel

Question #261
INLAND ONLY Two power-driven vessels are meeting in the situation as shown in a narrow channel on the Great Lakes. Vessel "A" is downbound with a following current. Vessel "B" should __________.
 hold as necessary to permit safe passage
 have the right of way
 initiate the maneuvering signals
 None of the above

Question #300
BOTH INTL & INLAND The vessel whose lights are red over white with a port running light is navigating in a narrow channel. Which statement about this vessel is TRUE?
 It shall not impede the passage of any other vessel navigating within the channel or fairway.
 It is the stand-on vessel
 It may anchor in the channel or fairway
 It shows two balls

Question #352
BOTH INTERNATIONAL & INLAND Which vessel must show forward and after masthead lights when making way?
 A 75-meter vessel restricted in her ability to maneuver
 A 100-meter sailing vessel
 A 150-meter vessel engaged in fishing
 A 45-meter vessel engaged in towing

A
A 75-meter vessel restricted in her ability to maneuver

(fishing vessels don't show mast head lights, nor do sailboats)

Question #362
BOTH INTERNATIONAL & INLAND You see ONLY a single green light. This could be a vessel __________.
 not under command
 engaged in fishing
 under oars
 towing

Question #370
INTERNATIONAL ONLY Which signal may be sounded ONLY by vessels in restricted visibility?
 At least five short and rapid blasts
 Four short blasts
 One prolonged, one short, one prolonged, and one short blast, in that order
 Two short blasts

B
Four short blasts

(A and D used in any visibility to signal danger or course change, C doesn't exist)

Question #377
BOTH IL & INLAND The rules require that a stand-on vessel SHALL take action to avoid collision when she determines that __________.
 risk of collision exists
 the other vessel will cross ahead of her
 the other vessel is not taking appropriate action
 collision cannot be avoided by the give-way vessel's maneuver alone

Question #379
BOTH INTL & INLAND The maximum length of a power-driven vessel which may show an all-round white light and sidelights instead of a masthead light, sidelights and a stern light is __________.
 6.9 meters
 9.9 meters
 11.9 meters
 19.9 meters

Question #496
BOTH INTL & INLAND A vessel will NOT show sidelights when 
 underway but not making way
 making way, not under command
 not under command, not making way
 trolling underway

C
not under command, not making way

Rule 27(a) A vessel not under command shall exhibit:

(i) two all-round red lights in a vertical line where they can best be seen;

(ii) two balls or similar shapes in a vertical line where they can best be seen;

(iii) when making way through the water, in addition to the lights prescribed in this paragraph, sidelights and a sternlight.

Question #566
BOTH INTL & INLAND A vessel which is fishing must show sidelights and a stern light only when
 anchored
 underway
 dead in the water
 underway and making way

Question #669
BOTH INTL & INLAND Which vessel is to be regarded as a vessel "restricted in her ability to maneuver"?
 A vessel fishing with trawls
 A vessel which has lost the use of her steering gear
 A vessel with a draft of such depth that she cannot change her course
 A vessel engaged in mineclearing

D
A vessel engaged in mineclearing

(A is fishing

B is not under command

C is restricted by Draft)

(g) (continued) The term “vessels restricted in their ability to maneuver” shall include but not be limited to:

(i) a vessel engaged in laying, servicing or picking up a navigation mark, submarine cable or pipeline;

(ii) a vessel engaged in dredging, surveying or underwater operations;

(iii) a vessel engaged in replenishment or transferring persons, provisions or cargo while underway;

(iv) a vessel engaged in the launching or recovery of aircraft;

(v) a vessel engaged in mineclearance operations;

(vi) a vessel engaged in a towing operation such as severely restricts the towing vessel and her tow in their ability to deviate from their course.

Question #708
BOTH INTL & INLAND Two power-driven vessels are crossing so as to involve risk of collision. Which statement is TRUE, according to the Rules?
 The vssl which has the other on her own prt side shall keep out of the way.
 If the stand-on vssl takes action, she shall avoid changing course to port.
 If the give-way vssl takes action, she shall avoid changing course to starboard.
 The give-way vssl should keep the other vessel to her starboard.

Question #759
BOTH INTL & INLAND A vessel underway but not making way and fishing other than trawling will show which lights?
 A white light over a red light
 A red light over a white light
 A white light over a red light, sidelights, and a stern light
 A red light over a white light, sidelights, and a stern light

Question #771
BOTH INTL & INLAND What describes a head-on situation?
 Seeing a vessel displaying both sidelights ONLY dead ahead
 Seeing two forward white towing identification lights in a vertical line on a towing vessel directly ahead
 Seeing both sidelights of a vessel directly off your starboard beam
 Seeing both sidelights and masthead light(s) of a vessel dead ahead

D
Seeing both sidelights and masthead light(s) of a vessel dead ahead

Rule 14(b) Such a situation shall be deemed to exist when a vessel sees the other ahead or nearly ahead and by night she could see the masthead lights of the other in a line or nearly in a line and/or both sidelights and by day she observes the corresponding aspect of the other vessel.

Question #900
BOTH INTL & INLAND Two sailing vessels are approaching each other, one from the East(I) and one from the West(II), wind is from the South. Which statement is correct?
 Vessel "I" should stand on because she has the wind on her port side.
 Vessel "II" should stand on because she has the wind on her starboard side.
 Neither vessel is the stand-on vessel because they are meeting head-on.
 Vessel "I" should stand on because she is close-hauled.

B
Vessel "II" should stand on because she has the wind on her starboard side.

Rule 12 (i) when each has the wind on a different side, the vessel which has the wind on the port side shall keep out of the way of the other;

Question #974
BOTH INTL & INLAND What must be TRUE in order for a stand-on vessel to take action to avoid collision by her maneuver alone?
 She must be in sight of the give-way vessel.
 There must be risk of collision.
 She must determine that the give-way vessel is not taking appropriate action.
 All of the above

Question #1056
BOTH INTL & INLAND Which vessel would exhibit sidelights when underway and not making way?
 A vessel engaged in fishing
 A vessel not under command
 A vessel engaged in dredging
 A power-driven vessel

Question #40
INLAND ONLY The light used to signal passing intentions is a(n) __________.
 all-round white light ONLY
 all-round yellow light ONLY
 all-round white or yellow light
 light of any color

Question #115
INLAND ONLY What is true of a "special flashing light"?
 It may show through an arc of 180°.
 It flashes at the rate of 120 flashes per minute.
 It is optional below the Baton Rouge Highway Bridge.
 All of the above

A
It may show through an arc of 180°.

yellow light flashing at regular intervals at a frequency of 50 to 70 flashes per minute, placed as far forward and as nearly as practicable on the fore and aft centerline of the tow and showing an unbroken light over an arc of the horizon of not less than 180 degrees nor more than 225 degrees

Question #128
INLAND ONLY You are proceeding in a channel in inland waters and are meeting an outbound vessel. Your responsibilities include __________.
 keeping to that side of the channel which is on your vessel's port side
 exchanging whistle signals if passing within half a mile
 stopping your vessel and letting the outbound vessel initiate signals for passing
 giving the outbound vessel the right of way

Question #139
INLAND ONLY You are the stand-on vessel in a crossing situation. The other vessel is showing an alternating red and yellow light. Which action should you take?
 Stand on.
 Heave to.
 Alter course to assist.
 Yield the right-of-way.

Question #216
INLAND ONLY While underway and in sight of another vessel a mile ahead you put your engines on astern propulsion. Which statement concerning whistle signals is TRUE?
 You must sound three short blasts on the whistle.
 You must sound one blast if backing to starboard.
 You must sound whistle signals only if the vessels are meeting.
 You need not sound any whistle signals.

Question #221
BOTH INTL & INLAND Vessel "A" is overtaking vessel "B" as (A is ~200R on B). Vessel "B" is the __________.
 give-way vessel
 vessel being overtaken
 passing vessel
 None of the above

Question #405
INLAND ONLY The masthead light may be located at other than the fore and aft centerline on a power-driven vessel
 less than 20 meters in length
 less than 12 meters in length
 which has separate sidelights carried on the outboard extremes of the vessel's breadth
 engaged in fishing

Question #442
BOTH INTL & INLAND Which lights are shown by a vessel restricted in her ability to maneuver to indicate that the vessel is making way?
 Masthead lights, sidelights and stern light
 Masthead lights and sidelights only
 Sidelights and stern light only
 Sidelights only

Question #457
BOTH INTL & INLAND A "flashing light", by the definition given in the rules, is a light that __________.
Check the correct answer and "click" guess
 is red in color
 is visible over an arc of the horizon of 360°
 flashes at regular intervals at a frequency of 120 flashes or more per min
 All of the above

Question #469
BOTH INTL & INLAND A 45-meter vessel is pulling a 210-meter tow. She may exhibit __________.
 a masthead light forward, and two masthead lights in a vertical line aft
 three masthead lights forward and one aft
 two masthead lights forward and no after masthead light
 three masthead lights aft and none forward

Question #534
BOTH INTERNATIONAL & INLAND A power-driven vessel towing another vessel astern (tow less than 200 meters) shall show __________.
 three masthead lights in a vertical line instead of either the forward or after masthead light
 two masthead lights in a vertical line instead of either the forward or after masthead lights
 two towing lights in a vertical line at the stern
 a small white light aft of the funnel

Question #552
BOTH INTL & INLAND A vessel engaged in fishing, and at anchor, should exhibit __________.
 an anchor light
 sidelights and stern light
 three lights in a vertical line, the highest and lowest being red, and the middle being white
 None of the above

Question #564
BOTH INTL & INLAND A vessel which is unable to maneuver due to some exceptional circumstance, shall show 2 red lights in a vertical line and 
 during the day, 3 balls in a vertical line
 during the day, 3 shapes, the highest and lowest being balls and the middle being a diamond
 when making way at night, sidelights and a stern light
 when making way at night, masthead lights, sidelights, and a stern light

Question #591
BOTH INTL & INLAND A single towing light will be carried above a vessel's stern light __________.
 only if she is towing astern
 only if the tow exceeds 200 meters
 at any time when towing
 if the towing vessel is part of a composite unit

Question #721
BOTH INTL & INLAND An anchored vessel is servicing an aid to navigation and is restricted in her ability to maneuver. Which lights will she show?
 Three lights in a vertical line, the highest and lowest red and the middle white, and anchor lights
 Three lights in a vertical line, the highest and lowest red and the middle white, ONLY
 Anchor lights ONLY
 Anchor lights and sidelights ONLY

Question #811
BOTH INTL & INLAND You see a port sidelight and 2 masthead lights on your port bow. You should __________.
 hold course and speed
 alter course to port
 stop engines
 sound the danger signal

Question #855
BOTH INTERNATIONAL & INLAND Which vessel must show a masthead light abaft of and higher than her identifying lights?
 A 55-meter vessel fishing
 A 55-meter vessel trawling
 A 100-meter vessel not under command
 A 20-meter vessel engaged on pilotage duty

Question #872
BOTH INTL & INLAND According to the Navigation Rules, all of the following are engaged in fishing EXCEPT a vessel __________.
 setting nets
 trawling
 using a dredge net
 trolling

Question #880
BOTH INTL & INLAND A vessel may exhibit lights other than those prescribed by the Rules as long as the additional lights __________.
 do not interfere with the keeping of a proper look-out
 are not the color of either sidelight
 have a lesser range than the prescribed lights
 All of the above

Question #884
INTL ONLY In which situation do the Rules require both vessels to change course?
 Two power-driven vessels meeting head-on
 Two power-driven vessels crossing when it is apparent to the stand-on vessel that the give-way vessel is not taking appropriate action
 Two sailing vessels crossing with the wind on the same side
 All of the above

A
Two power-driven vessels meeting head-on

RULE 14 Head-on Situation

(a) When two power-driven vessels are meeting on reciprocal or nearly reciprocal courses so as to involve risk of collision each shall alter her course to starboard so that each shall pass on the port side of the other.

Question #915
BOTH INTL & INLAND Which vessel sounds the same fog signal when underway or at anchor?
 A sailing vessel
 A vessel restricted in her ability to maneuver
 A vessel constrained by her draft
 A vessel not under command

Question #940
BOTH INTL & INLAND A vessel using a traffic separation scheme shall:
 only anchor in the separation zone
 cross a traffic lane at as small an angle as possible
 avoid anchoring in areas near the termination of the scheme
 utilize the separation zone for navigating through the scheme if she is impeding other traffic due to her slower speed

Question #944
BOTH INTL & INLAND Which vessel, when anchored at night, would NOT be required to show anchor lights?
 A power-driven vessel
 A vessel on pilotage duty
 A vessel dredging
 A vessel restricted in her ability to maneuver

Question #946
BOTH INTL & INLAND A vessel not under command shall display:
 two red lights at night and two black balls during daylight
 two red lights at night and three black balls during daylight
 three red lights at night and two black balls during daylight
 three red lights at night and three black balls during daylight

Question #967
BOTH INTL & INLAND Which vessel would exhibit sidelights when underway and not making way?
 A vessel towing astern
 A vessel trawling
 A vessel not under command
 A vessel engaged in dredging operations

Question #980
BOTH INTL & INLAND Two barges are being pushed ahead by a tugboat. Which statement is TRUE concerning lights on the barges?
 Each vessel should show sidelights.
 Each vessel should show at least one white light.
 The barges should be lighted as separate units.
 The barges should be lighted as one vessel.

Question #999
BOTH INTL & INLAND Which vessel is the stand-on vessel when two vessels crossing in fog are NOT in sight of one another?
 The vessel which has the other on her own starboard side
 The vessel which has the other on her own port side
 The one which hears the other's fog signal first
 Neither vessel is the stand-on vessel.