COLREGS:ANTI-COLLISION Flashcards
1
Q
In the COLREGS, the authorized light used to assist in the idetification of submarines that is operating on the surface is a/an:
A
intermittent flashing amber/yellow light
2
Q
Under the COLREGS, there is a requirement to practice “good seamanship”. Which of the following would be considered as “good seamanship”?
A
sounding the fog signal when in clear weather but approaching a fog bank
3
Q
Which of these vessels is “not under command” as defined in Rule 3 of the Collision Regulations?
A
a sailing vessel becalmed
4
Q
Which of these vessels is NOT a vessel “restricted in her ability to maneuver” as defined in Rule 3 of the Collision Regulations?
A
a loaded VLCC navigating in a fairway flanked by shoal water
5
Q
A vessel “restricted in her ability to maneuver” is one which _____.
A
from the nature of her work is unable to maneuver as required by the rules
6
Q
You are the OIC on the bridge of a power-driven vessel and notice a large sailing vessel approaching you from the stern. You should:
A
hold your course and speed
7
Q
If it becomes necessary for a stand-on vessel to take action to avoid collision, she shall NOT:
A
turn to port for a vessel on her own port side
8
Q
A vessel approaching your vessel from 235˚ relative is in what type of situation?
A
overtaking
9
Q
Which vessel may sound the danger signal?
A
all of these
10
Q
A vessel is approaching your vessel from 125.5˚ relative is in what type of situation?
A
overtaking
11
Q
A vessel approaching your vessel from 265˚ relative is in what type of situation?
A
crossing
12
Q
Which of the following factors must be taken into account when determining safe speed?
A
the maneuverability of the vessel
13
Q
Which of these vessels is NOT a vessel “restricted in her ability to maneuver” as defined in Rule 3 of the Collision Regulations?
A
a vessel whose anchor is fouled
14
Q
Which of these vessels is a vessel “restricted in her ability to maneuver” as defined in Rule 3 of the Collision Regulations?
A
all of these
15
Q
Which of these vessels is “not under command” as defined in Rule 3 of the Collision Regulations?
A
a vessel whose anchor is fouled
16
Q
The following are vessels “not under command” EXCEPT:
A
a vessel engaged in mine-clearing operations
17
Q
According to the collision regulations, all of the following are considered engaged in fishing EXCEPT a vessel______.
A
trolling
18
Q
The term “vessel constrained by her draft” means a power-driven vessel which because of her draft in relation to the available _____ of navigable water is severely restricted in her ability to deviate from the course she is following.
A
depth and width
19
Q
According to the collision regulations, all of the following vessels shall be regarded as restricted in in their ability to maneuver EXCEPT a vessel______.
A
not under command
20
Q
The term “restricted visibility” as defined by the collision regulations refers ______.
A
To any condition where visibility is restricted
21
Q
Part B, Section I of the Rules applies to the conduct of vessels in ______.
A
any condition of visibility
22
Q
The Collision Regulations state that a vessel shall be operated at a safe speed at all times so that she can be stopped within:
A
a distance appropriate to the existing circumstances and conditions
23
Q
The Rules state that certain factors are to taken into account when determining safe speed. One of the factors stated is:
A
current
24
Q
The rules state that certain factors are to taken into account when determining safe speed. One of the factors stated is:
A
traffic density including concentration of fishing boats
25
The rules state that certain factors are to taken into account when determining safe speed. One of the factors stated is:
the draft in relation to the available depth of the water
26
The rules state that certain factors are to taken into account when determining safe speed. One of the factors stated is:
the proximity of navigational hazards
27
In determining safe speed, all of the following must be taken into account EXCEPT:
maximum horsepower of your vessel
28
What describes a Head-on situation?
seeing both sidelights of a vessel directly ahead
29
When a vesel is in any doubt as to whether a head-on or crossing situation exists she shall:
assume that she is meeting head-on and act accordingly
30
A vessel may enter a traffic separation zone :
any of these
31
What International Code, two-letter signal has the meaning "You appear not to be complying with the traffic separation scheme"?
YG
32
A vessel using a traffic separation scheme shall NOT ____.
proceed in an inappropriate traffic lane
33
When two power-driven vessels are crossing, which of the vessels has the right of way?
the vessel which is to starboard of the other vessel
34
When two power-driven vessels are crossing, so as to involve risk of collision, which vessel shall keep out of the way of the other vessel?
the vessel which has the other on her own starboard side
35
Under way at night,you see the red sidelight of a vessel well off your port bow?
you may maintain course and speed
36
Your vessel is not making way, but is not in any way disabled. Another vessel is approaching you on your straboard beam. Which statement is TRUE?
your vessel is the give-way vessel in a crossing situation
37
A vessel restricted in her ability to maneuver shall:
turn off her sidelights when not making
38
A vessel restricted in her ability to maneuver which is at anchor must show at night which lights?
three all-round red-white-red lights in a vertical line and anchor lights
39
A vessel not under command at night underway but not making way shall show :
Two all round red lights in a vertical line
40
A vessel not under command at night underway and making headway shall show :
all of these
41
Two all-round red lights displayed in a vertical line are shown by a _____.
vessel not under command
42
When anchoring a 50-m vessel at night, you must show:
two all-round white lights
43
A vessel aground shall display a day shape consisting of:
three black balls in a vertical line
44
A vessel aground at night shall display lights consisting of an anchor light and:
two red lights in a vertical line
45
At night, a vessel which is less than 7 meters in length and anchored in an area where other vessels do not normally navigate is ______.
not required to show any anchor lights
46
Which vessel when anchored at night, would NOT be required to show anchor lights?
a vessel engaged in underwater operations
47
Which of the following vessels when anchored at night, would NOT be required to show anchor lights?
a vessel dredging
48
Which vessel would exhibit sidelights when underway and making way?
all of these
49
Which vessel would NOT exhibit sidelights when underway and not making way?
not under command
50
Which vessel would exhibit sidelights when underway and not making way?
a vessel towing by pushing ahead
51
Which vessel would exhibit sidelights when underway and not making way?
a vessel towing astern
52
A power-driven vessel exhibits the same lights as a:
pushing vessel and a vessel being pushed when they are in a composite unit
53
A vessel towing by pushing a barge ahead and rigidly connected in a composite unit shall show the lights of:
a power-driven vessel, not towing
54
At night, a broken down vessel being towed would show the same lights as _______.
a barge
55
Which vessel would exhibit sidelights when underway and not making way?
any of these
56
A vessel being towed at night shall show ____.
Sidelights
57
A vessel or object being towed shall display a:
Sternlight
58
Which statement is TRUE concerning a towing light displayed by a vessel towing astern?
The towing light is shown above the stern light
59
What dayshape should be exhibited by a vessel being towed when the length of the tow exceeds 200-meters?
one diamond
60
A vessel with a tow over 200-meters in length will, during the day, show _____.
a diamond shape
61
A partly submerged object towed by a vessel must show during the day _____.
a diamond shape when the length of the tow is 200 meters or less
62
Which vessel must show two masthead lights in a vertical line?
a power-driven vesel less than 50 meters in length with a 20-meter tow
63
An inconspicuous, partly submerged vessel or object being towed, where the length of tow is 250 meters, shall show:
two diamond shapes
64
The dayshape(s) that should be exhibited by a vessel being towed when the length of the tow exceeds 200-meters is/are:
one diamond shape
65
A vessel will NOT show sidelights when:
not under command, not making way
66
A pilot vessel on pilotage duty at night will show sidelights and a stern light:
at any time when underway
67
A 30-meter tugboat is underway and NOT towing. At night, this vessel must show sidelights and:
one masthead light and a stern light
68
Which vessel shall turn off her sidelights?
any fishing vessel that is not making way
69
A vessel engaged in fishing, and at anchor, should exhibit:
none of these
70
Which statement is TRUE concerning lights and shapes displayed by towing vessels?
If the towing vessel is over 50 meters in length, she must carry forward and after masthead lights
71
Which statement is TRUE of a 30-meter sailing vessel underway?
She must show sidelights and a stern light in restricted visibility
72
Which statement is TRUE when you are towing more than one barge astern at night?
all the barges in the tow must be lighted
73
A 20-meter sailing vessel must exhibit at night:
a stern light
74
Which vessel may exhibit identifying lights when not actually engaged in her occupation?
none of these
75
A vessel is carrying three lights in a vertical line. The highest and lowest of these are red and the middle light is white. Which statement is always TRUE?
If making way, she would show masthead lights at night
76
A sailing vessel is NOT allowed to show the all-round red over green lights on the mast if:
her sidelights and stern light are combined in one lantern and shown on the mast
77
You hear the fog signal of another vessel forward of your beam. Risk of collsion may exist. You must:
Take all way off, if necessary
78
In fog, you observe your radar and determine that a risk of collision exist with a vessel 2 miles off your port bow. You should:
Take proper and avoiding action as soon as possible
79
You are underway in fog and hear a fog signal of two prolonged blasts on your starboard quarter. You should:
hold your course and speed
80
You are underway in fog in thick fog. Which statement is TRUE?
The engines must be stopped if a fog signal is heard forward of the beam
81
In restricted visibility, a vessel which detects by radar alone the presence of another vessel, shall determine if a close quarters situation is developing or risk of colision exists. If so, she shall:
avoid altering course toward a vessel abaft the beam
82
The lights prescribed by the rules shall be exhibited:
from sunrise to sunset in restricted visibility
83
A vessel may exhibit lights other than those prescribed by the rules as long as the additional lights:
Do not impair the visibility or distinctive character of the prescribed lights
84
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 lookout
85
A vessel may exhibit lights other than those prescribed by the rules as long as the additional lights:
all of these
86
As defined in the navigation rules, the arc of visibility for sidelights is from right ahead to:
22.5˚ abaft the beam
87
As defined in the navigation rules, the arc of visibility for masthead light is 225˚ and so fixed as to show the light from right ahead to ____ on either side of the vessel.
22.5˚ abaft the beam
88
As defined in the navigation rules, the arc of visibility for sidelights is _____.
112.5˚
89
As defined in the navigation rules, the arc of visibility for a stern light is 135˚ and so fixed as to show the light from right aft to ____ on each side of the vessel.
67.5˚
90
As defined in the navigation rules, the arc of visibility for an all-round light is _____.
360˚
91
As defined in the navigation rules, the arc of visibility for a towing light is _____.
135˚
92
As defined in the navigation rules, the minimum range of visibility for sidelights of vessels of 12m or more in length but less than 50 meters is:
2 mi.
93
As defined in the navigation rules, the minimum range of visibility for masthead lights of vessels of 12m or more in length but less than 50 meters is
5 mi.
94
As defined in the navigation rules, the minimum range of visibility for masthead lights of vessels of 12m or more in length but less than 20 meters is
3 mi.
95
As defined in the navigation rules, the minimum range of visibility for sternlight of vessels of 12m or more in length but less than 50 meters is:
2 mi.
96
As defined in the navigation rules, the minimum range of visibility for sidelights of vessels of more than 50 meters is:
3 mi.
97
As defined in the navigation rules, the minimum range of visibility for towing light of vessels of 50 meters or more in length is:
3 mi.
98
As defined in the navigation rules, the minimum range of visibility for masthead lights of vessels of 50 meters or more in length is:
6 mi.
99
As defined in the navigation rules, the minimum range of visibility for masthead lights of vessels of less than 12 meters in length is:
2 mi.
100
An inconspicuous, partly submerged vessel or object being towed's white all round light shall have an intensity as specified in Sec. 8; Annex I of these Rules and shall have a minimum range of visibility of :
3 mi.
101
A vessel of less than 12 meters in length shall have a masthead light with a range of visibility of not less than:
2 mi.
102
How many meters vertically above the sidelights (if carried), shall the masthead light of a power-driven vessel of less 12 meters in length?
1m
103
The additional light signals for fishing vessels , as prescribed inAnnex II of the COLREGS, shall be spaced apart by at least:
0m 54s
104
A continuous sounding of a fog whistle by a vessel indicates that a vessel is:
in distress
105
As additional light signal for vessels of 20 m or more in length when engaged in trawling, whether using demersal or pelagic gear when shooting their nets may exhibit:
two white lights in a vertical line
106
For vessels 20 meters or more in length, the diameter of the mouth of the bell it carries shall be not less than:
300 mm
107
Under the rules, all of the following are distress signals EXCEPT:
a green star signal
108
The horizontal distance between the two masthead lights prescribed for power-driven vessels shall not be less than one-half of the length of the vessel but need not be more than:
100m
109
As provided for in Annex III of the International Regulations for Preventing Collisions at Sea, when a directional whistle is to be used as the only whistle on a vessel, it shall be installed with its maximum intensity directed:
straight ahead
110
Which of the following is NOT a distress signal?
Basket hanging in the rigging
111
AS provided in ANNEX III of the COLREGS, the sound pressure level of the vessel's own signal at listening posts shall not exceed:
110 dB
112
The forward masthead light prescribed for a power-driven vessel shall be placed at a distance from the stem by:
not more than 1/4 th of the length of the vessel
113
Which is NOT a distress signal under the rules?
International Code signal "AA"
114
AS provided in ANNEX III of the COLREGS, if whistles are fitted at a distance apart of more than 100 meters, it shall be arranged that they:
are not sounded simultaneously
115
As additional lights for vessels engaged in fishing with purse seine gear and is hampered by it may exhibit:
two yellow lights in a vertical line
116
The sound pressure level at any direction in the horizontal plane shall NOT be more than how many dB below the prescribed sound pressure level on the axis?
10 dB
117
A vessel engaged in trawling, in addition to its identity lights, is exhibiting two white lights in a vertical line. What is she doing?
shooting her nets
118
A cylinder shall have a diameter of at least:
0.6 meter
119
A cylinder shall have a diameter of at least 0.6 m and a height of:
two times its diameter
120
As provided for in Annex III of the International Regulations for Preventing Collisions at Sea, the approximate range of audibility at which a whistle signal may be heard on its forward axis, if a vessel is 200 meters or more in length is:
2.0 nautical miles
121
As provided for in Annex III of the International Regulations for Preventing Collision at Sea, the mass of the bell striker shall be NOT less than:
3 percent of the mass of the bell
122
Under the COLREGSS, the term"Height above the hull" means
height above the uppermost continuous dek
123
A whistle fitted in a vessel shall provide, in the direction of maximum intensity of the whistle and at a distance of 1 meter from it, the sound pressure level in at least:
1/3 octave band
124
A bell or gong, or other device having similar sound characterisitics shall, at a distance of one meter from it, produce a sound pressure level of NOT less than:
110 dB
125
The vertical distance between the shapes, according to the COLREGSS, shall be at least:
1.5 meters
126
When two or three lights are to be carried in a vertical line on a power-driven vessel of 20 meters or more in length, such lights shall be equally spaced apart by NOT less than:
2 meters
127
When a vessel signals her distress by means of a gun or any other explosive signal, the firing should be at intervals of approximately:
1 minute
128
A distress signal:
may be used separately or with other distress signal
129
A ball shape shall be black and shall have a diameter of NOT less than:
0.6 meter
130
On a power-driven vessel of 20 meters or more in length, the sidelights shall be placed:
at or near the side of the vessel
131
A diamond shall consist of two cones:
having a common base
132
COLREGS Annex III refers to the Technical details of:
Sound Signal Appliances
133
The additional light signals for fishing vessels , as prescribed in Annex II of the COLREGS,if fitted with purse seine gear and is hampered by it shall flash alternately:
every second and with equal light and occultation duration
134
Which of the following would NOT be considered as a distress signal?
green star shells fired from a launcher
135
Under COLREGS Annex I, Sec. 1. paragraph (J), the lower of the two all-round lights prescribed for a vessel when engaged in fishing shall be at a height above the sidelights ______________ the distance between the two vertical lights.
not less than twice
136
When two masthead lights are prescribed for a power-driven vessel, the horizontal distance between them shall not be less than _________ of the length of the vessel but need not be more than 100 meters.
one-half
137
COLREGS Annex II, the additional signals for trawlers when their nets have come fast an obstruction may exhibit during the day:
International Code Flag "PAPA"
138
Using the formula: I = 3.43 x 10³ x T x D² x K-₫ x 10³, compute the luminous intensity of the light in candelas (cd) for a luminous range of 1 nautical mile.
0.9 cd
139
Using the formula: I = 3.43 x 10³ x T x D² x K-₫ 10³, compute the luminous intensity of the light in candelas (cd) for a luminous range of two nautical miles.
4.3 cd
140
Using the formula: I = 3.43 x 10³ x T x D² x K-₫ x 10³, compute the luminous intensity of the light in candelas (cd) for a luminous range of three nautical miles.
12 cd
141
Using the formula: I = 3.43 x 10³ x T x D² x K-₫ x 10³, compute the luminous intensity of the light in candelas (cd) for a luminous range of four nautical miles.
27 cd
142
Using the formula: I = 3.43 x 10³ x T x D² x K-₫ x 10³, compute the luminous intensity of the light in candelas (cd) for a luminous range of five nautical miles.
52 cd
143
Using the formula: I = 3.43 x 10³ x T x D² x K-₫ x 10³, compute the luminous intensity of the light in candelas (cd) for a luminous range of six nautical miles.
94 cd
144
Under COLREGS, Annex III,Sec. 1, Whistles, what is the required audibility range in nautical miles for vessels 20 m but less than 75 meters in length?
1.0 nm
145
Under COLREGS, Annex III,Sec. 1, Whistles, what is the required audibility range in nautical miles for vessels 75 m but less than 200 meters in length?
1.5 nm
146
Under COLREGS, Annex III,Sec. 1, Whistles, what is the required audibility range in nautical miles for vessels 200 meters or more in length?
2.0 nm
147
Under COLREGS, Annex III,Sec. 1, Whistles, what is the required audibility range in nautical miles for vessels less than 20 meters in length?
0.5 nm
148
The lights and shapes on a vessel engaged in dredging or underwater operations to indicate the obstructed side on which it is safe to pass shall be placed:
all of these
149
Under COLREGS Annex I, Sec. 1.what should be the height above the sidelights of the lower two all-round lights prescribed for a vessel when engaged in fishing?
not less than twice the distance between the vertical lights
150
You saw a man aboard a vessel and he is raising and lowering his outstreched arms to each side. This means:
a distress signal
151
Under COLREGS, Annex I, paragraph (g), at what height above the hull shall the sidelights of a power-driven vessel be placed?
not greater than three quarters of that of the forward masthead light
152
Under COLREGS, Annex II, the additional signals for fishing vessels, they shall be visible all around the horizon at a distance of at least:
1.0 nm
153
Under COLREGS, Annex IV, if you saw flames aboard a vessel but could see the vessel was not on fire, this would indicate that the ______.
vessel requires immediate assistance
154
When two masthead lights are carried for a power-driven vessel, the after one shall be vertically higher than the forwardone by how many meters?
4.5 meters
155
Under COLREGS Annex II, an additional light signal for vessels of 20 meters or more in length when engaged in trawling, whether using demersal or pelagic gear when they are hauling nets may exhibit:
one white light over one red light in a vertical line
156
Under COLREGS Annex III, the bell striker shall have a mass not less than _____ of the mass of the bell.
three percent
157
The vertical separation of masthead lights of a power-driven vessel shall be such that in all conditions of trim, the after light, when viewed from sea level, shall be seen over and separate from the forward light, at a distance from the stem by:
1000 meters
158
Under COLREGS Annex II, an additional light signal for vessels of 20 meters or more in length when engaged in trawling, whether using demersal or pelagic gear when the nets have come fast an obstruction may exhibit:
two red lights in a vertical line
159
Under COLREGS Annex IV, if you hear a vessel continuously sounding her fog whistle, this indcates that the vessel:
in distress
160
At what height above the gunwale shall the masthead light of a power-driven vessel of 12 meters but less than 20 meters in length be placed?
not less than 2.5 meters
161
Under COLREGS Annex II, Additional Signals for Fishing Vessels Fishing in Close Proximity, each vessel of 20 meters or more in length engaged in pair trawling may exhibit a searchlight directed forward and in the direction:
of the other vessel of the pair
162
Identify which of the following is NOT a distress signals as listed under Annex IV of the International Regulations for Preventing Collsions at Sea.
giving five or more short rapid blasts on the whistle
163
Which of the following is the correct signal to indicate that a vessel is in doubt as to the action or intention of another vessel?
giving five or more short rapid blasts on the whistle
164
Which of the following is considered the danger signal?
giving five or more short rapid blasts on the whistle
165
Under COLREGS Annex I, the vertical separation of masthead lights of a power-driven vessel shall be such that in all conditions of trim, the after light, when viewed from sea level, shall be seen over and separate from the forward light, at a distance from the stem by:
1 km
166
When two or three lights are to be carried in vertical line on a power-driven vessel of less than 20 meters in length, such lights shall be equally spaced apart by NOT less than:
one meter
167
As prescribed in Annex III of the International Collision Regulations, the fundamental frequency of a whistle for a vessel less than 75 meters in length, shall be between:
250 to 700 Hz
168
Under COLREGS Annex IV, the firing of a gun at one minute intervals indicates that the vessel:
is in distress
169
Under COLREGS, Annex III, a bell or gong, or other devices having similar characteristics, shall at a distance of one meter from it, produce a sound presssure level of NOT less than:
110 dB
170
Under COLREGS Annex III, the fundamental frequency of the whistle signal shall ie within the range of:
70 - 700 Hz
171
Under COLREGS Annex III, to ensure a wide variety of whistle characteristics, the fundamental frequency of a whistle for a vessel 200 meters or more in length shall be between:
70 - 200 Hz
172
Under COLREGS Annex III, what is the length of the vessel if the fundamental frequency of whistle is between 250 - 700 Hz?
less than 75 meters
173
Under COLREGS Annex III, what is the length of the vessel if the audibility range of a whistle is two miles?
200 meters or more
174
Under COLREGS Annex III, the sound pressure level of a directional whistle shall not be more than 4 dB below the prescribed sound pressure level on the axis at any direction in the horizontal plane within:
± 45˚ of the axis
175
Under COLREGS Annex III, a whistle shall be positioned:
all of these
176
Under COLREGS Annex III, if whistles are fitted at a distance apart of more than 100 meters, it hsall be so arranged that they are:
not sounded simultaneously
177
For the purpose of the rules, a combined whistle system is to be regarded as a single whistle. The whistles of the combined system shall be located at a distance apart of NOT more than 100 meters and arranged to be______.
sounded simultaneously
178
Under COLREGS Annex III, the frequency of any one whistle in the combined whistle system shall differ from one another by at least:
10 Hz
179
Under COLREGS Annex III, the range of audibility a t which a whistle may be heard on its forward axis with 90% probability in conditions of:
still air
180
Under COLREGS Annex III, the bells and gongs shall be made up of:
corrosion-resistant materials
181
Under COLREGS Annex III, a power-driven bell striker is recommended to ensure:
constant force
182
Under Annex I of the Collision Regulations, the sidelights of a vessel 20 meters or more in length shall be fitted with :
inboard screens matt black
183
Under Annex I of the Collision Regulations, the sidelights of a vessel in the forward direction shall show the minimum required intensities and must decrease to reach a practical cut-off between:
1˚ and 3˚ outside the prescribed sector
184
The vessels engaged in fishing with purse seine gears may exhibit two yellow lights in a vertical line. These lights shall flash alternately every second and wit equal light and occultation duration. These lights may be exhibited only when the vessel is:
hampred by its fishing gear
185
When a directional whistle is to be used as the only whistle ona vessel, it shall be installed with its maximum intensity directed:
straight ahead
186
Under Annex III of the Collision Regulations, the sidelights of a vessel of 20 meters or more in length shall be fitted with inboard screens painted:
matt black
187
Under COLREGS, Annex I, the forward anchor light, of a vessel of 50 meters or more in length shall be placed at a height above the hull by NOT less than:
6 meters
188
As provided in Annex III of the International Regulations for Preventing Collisions at Sea, how much below shall the sound pressure level of a directional whistlebe, to the prescribed sound pressure level on the axis at any direction in the horizontal plane withn +/- 45˚ of the axis?
not more than 4 dB
189
Under COLREGS Annex IV, what does the orange flag, showing a black circle and a square shape indicate?
distress signal
190
When two or three lights are to be carried in a vertical line on a power-driven vessel of 20 meters or more in length, the lowest of these lights shall, EXCEPT where towing light is required such lights shall be placed at a height above the hull by NOT less than:
4 meters
191
As prescribed to Annex III of the COLREGS, the fundamental frequency of a whistle for a vessel 75 meters but less than 200 meters in length, shall be between:
130 to 350 Hz
192
The light indicating the direction of the outlying gear from a vessel engaged in fishing shall be placed at a horizontal distance from the two all round red and white lights of:
not less than two meters and not more than 6 meters away
193
The whistles of a combined whistle system are arranged to be sounded simultaneously and shall be located at a distance apart of not more than:
100 meters
194
When two or three lights are to be carried in a vertical line on a power-driven vessel of less than 20 meters in length, such lights, EXCEPT where a towing light is required, shall be placed at a height above the gunwale of NOT less than:
2 meters
195
Which of the following is NOT a distress signal?
vertical motion of a white lantern at night
196
For stern lights and masthead lights and at 22.5˚ abaft the beam for sidelights, the intensity may decrease by 50% up to the prescribed limits and it shall decrease steadily to reach a practical cut-off of NOT more than:
5˚ outside the prescribed sector
197
A 20-meter vessel towing another vessel astern where the length of the tow is 75 meters. How many white towing masthead lights shall the towing vessel show at night?
2
198
What is the dayshape that a vessel being towed exhibit if the tow exceeds 200 meters?
one diamond
199
A lantern combining the two sidelights and the stern light may be shown on a:
10-meter sailing vessel
200
Which of these vessels must exhibit three white masthead lights in a vertical line?
a vessel whose tow exceeds 200 meters astern
201
What is a towing light?
yellow light with the same characteristics as the stern light
202
An appropriate authority for roadsteads, harbors, rivers, lakes or inland waterways connected with the high seas and navigable by seagoing vessels, in making special rules, shall:
conform as closely as possible to the Collsion Regulations
203
Rule 2 states that in construing and complying with these Rules, due regard shall be had to all dangers of navigation and collision and to any special circumstances. Which of the following would you consider a departure from the Rules on account of the above? I. A power-driven vessel meeting another and being unable to alter course to starboard owing to shallow water close by. II. Action to avoid a squadron of warships on the port bow, carried out at a long range before risk of collision
Both I and II
204
Under the Collision Regulations, there is a requirement to practice "good seamanship". Which of the following would be considered "good seamanship"?
sounding a fog signal when in clear weather but approaching a fog bank
205
Which of the following is NOT Under Command as defined under Rule 3 of the Regulations?
a sailing vessel becalmed
206
Which of these vessels is NOT a vessel "restricted in her ability to maneuver" as defined in the Collision Regulations?
a loaded Very Large Crude Carrier (VLCC) navigating in a fairway flanked by shoal water
207
According to the Collsion Regulations:
none is correct
208
A proper lookout is required at all times by Rule 5 of the Collision Regulations. A proper lookout is maintained by:
sight and hearing as well as all available means appropriate in the circumstances and conditions
209
In considering "safe speed" as defined under rule 6 of the COLREGS, is it true to say that? I. The speed in any condition is always related to the prevailing circumstnaces and conditions II. In clear weather conditions, a vessel is always free to proceed at full speed
I only
210
Power-driven vessel "A" is approaching power-driven vessel "B". How can vessel "A" determine whether risk of collision exists?
by carefully watching the compass bearing of vessel "B"
211
You have another vessel on your port bow in clear weather, but with moderate seas and swell. Having regard to Rule 7 of the Collision Regulations, which of the following would normally give the greatest accuracy in determining if risk of collision exists?
observation of the compass bearing over a period of time
212
In considering the proper use of radar equipment in determining if risk of collsion exists, which of the these would be accepted as proper usage? I. Continuous observation by a competent person II. Bearing and distances of other vessels taken at regular intervals and carefully evaluated
Both I and II
213
In accordance with Rule 8 of the Collision Regulations, in any condition of visibility in order to avoid collision, which of the following is an error?
an alteration to starboard is always preferable to one to port
214
Your vessel is proceeding along a narrow channel displaying the signal required by Rule 28. A small vessel commences to cross the channel from starboard to port. It appears that she will impede your passage. What signal should you give under these circumstances?
at least five short and rapid blasts
215
Under the COLREGS, a power-driven vessel proceeding up a narrow channel against the current, should:
keep to the starboard side of the channel
216
Rule 10 pertains to the Traffic Sepration Scheme applies to traffic schemes:
adopted by the International Maritime Organization
217
Rule 10 states that if a vessel is obliged to cross a traffic lane then she shall do so:
on a heading as nearly as practicable at right angles to the general direction of traffic flow
218
Which of the following vessels may use the inshore traffic zones in all circumstances?
vessels less than 20 meters in length and sailing vessels
219
If two sailing vessels ( 'A' & 'B') are approaching in clear weather where 'A' is located on the starboard side of 'B'. The wind is blowing from the starboard sides of both vessel. If risk of collison exists, which of the following actions is correct?
A' must keep out of the way of 'B'
220
Two sailing vessels ('B' & 'C') are approaching on reciprocal courses and are in-sight of one another. Vessel 'C' has the wind on her port side while vessel 'B' has the wind on her starboard side. If risk of collision exists, which of the following actions is correct?
vessel 'C' shall keep clear of vessel 'B'
221
Under the Collision Regulations, you should assume that you are an overtaking vessel if:
any of these conditions are met
222
Vessel 'A' sights vessel 'B' bearing three points abaft the starboard beam. Sometime later, 'B' is bearing three points forward of the starboard beam. Under the Collision Regulations, the situation should now be governed by the Rule concerning:
a vessel overtaking another
