COLREGS:ANTI-COLLISION Flashcards
In the COLREGS, the authorized light used to assist in the idetification of submarines that is operating on the surface is a/an:
intermittent flashing amber/yellow light
Under the COLREGS, there is a requirement to practice “good seamanship”. Which of the following would be considered as “good seamanship”?
sounding the fog signal when in clear weather but approaching a fog bank
Which of these vessels is “not under command” as defined in Rule 3 of the Collision Regulations?
a sailing vessel becalmed
Which of these vessels is NOT a vessel “restricted in her ability to maneuver” as defined in Rule 3 of the Collision Regulations?
a loaded VLCC navigating in a fairway flanked by shoal water
A vessel “restricted in her ability to maneuver” is one which _____.
from the nature of her work is unable to maneuver as required by the rules
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:
hold your course and speed
If it becomes necessary for a stand-on vessel to take action to avoid collision, she shall NOT:
turn to port for a vessel on her own port side
A vessel approaching your vessel from 235˚ relative is in what type of situation?
overtaking
Which vessel may sound the danger signal?
all of these
A vessel is approaching your vessel from 125.5˚ relative is in what type of situation?
overtaking
A vessel approaching your vessel from 265˚ relative is in what type of situation?
crossing
Which of the following factors must be taken into account when determining safe speed?
the maneuverability of the vessel
Which of these vessels is NOT a vessel “restricted in her ability to maneuver” as defined in Rule 3 of the Collision Regulations?
a vessel whose anchor is fouled
Which of these vessels is a vessel “restricted in her ability to maneuver” as defined in Rule 3 of the Collision Regulations?
all of these
Which of these vessels is “not under command” as defined in Rule 3 of the Collision Regulations?
a vessel whose anchor is fouled
The following are vessels “not under command” EXCEPT:
a vessel engaged in mine-clearing operations
According to the collision regulations, all of the following are considered engaged in fishing EXCEPT a vessel______.
trolling
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.
depth and width
According to the collision regulations, all of the following vessels shall be regarded as restricted in in their ability to maneuver EXCEPT a vessel______.
not under command
The term “restricted visibility” as defined by the collision regulations refers ______.
To any condition where visibility is restricted
Part B, Section I of the Rules applies to the conduct of vessels in ______.
any condition of visibility
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 distance appropriate to the existing circumstances and conditions
The Rules state that certain factors are to taken into account when determining safe speed. One of the factors stated is:
current
The rules state that certain factors are to taken into account when determining safe speed. One of the factors stated is:
traffic density including concentration of fishing boats
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
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
In determining safe speed, all of the following must be taken into account EXCEPT:
maximum horsepower of your vessel
What describes a Head-on situation?
seeing both sidelights of a vessel directly ahead
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
A vessel may enter a traffic separation zone :
any of these
What International Code, two-letter signal has the meaning “You appear not to be complying with the traffic separation scheme”?
YG
A vessel using a traffic separation scheme shall NOT ____.
proceed in an inappropriate traffic lane
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
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
Under way at night,you see the red sidelight of a vessel well off your port bow?
you may maintain course and speed
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
A vessel restricted in her ability to maneuver shall:
turn off her sidelights when not making
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
A vessel not under command at night underway but not making way shall show :
Two all round red lights in a vertical line
A vessel not under command at night underway and making headway shall show :
all of these
Two all-round red lights displayed in a vertical line are shown by a _____.
vessel not under command
When anchoring a 50-m vessel at night, you must show:
two all-round white lights
A vessel aground shall display a day shape consisting of:
three black balls in a vertical line
A vessel aground at night shall display lights consisting of an anchor light and:
two red lights in a vertical line
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
Which vessel when anchored at night, would NOT be required to show anchor lights?
a vessel engaged in underwater operations
Which of the following vessels when anchored at night, would NOT be required to show anchor lights?
a vessel dredging
Which vessel would exhibit sidelights when underway and making way?
all of these
Which vessel would NOT exhibit sidelights when underway and not making way?
not under command
Which vessel would exhibit sidelights when underway and not making way?
a vessel towing by pushing ahead
Which vessel would exhibit sidelights when underway and not making way?
a vessel towing astern
A power-driven vessel exhibits the same lights as a:
pushing vessel and a vessel being pushed when they are in a composite unit
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
At night, a broken down vessel being towed would show the same lights as _______.
a barge
Which vessel would exhibit sidelights when underway and not making way?
any of these
A vessel being towed at night shall show ____.
Sidelights
A vessel or object being towed shall display a:
Sternlight
Which statement is TRUE concerning a towing light displayed by a vessel towing astern?
The towing light is shown above the stern light
What dayshape should be exhibited by a vessel being towed when the length of the tow exceeds 200-meters?
one diamond
A vessel with a tow over 200-meters in length will, during the day, show _____.
a diamond shape
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
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
An inconspicuous, partly submerged vessel or object being towed, where the length of tow is 250 meters, shall show:
two diamond shapes
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
A vessel will NOT show sidelights when:
not under command, not making way
A pilot vessel on pilotage duty at night will show sidelights and a stern light:
at any time when underway
A 30-meter tugboat is underway and NOT towing. At night, this vessel must show sidelights and:
one masthead light and a stern light
Which vessel shall turn off her sidelights?
any fishing vessel that is not making way
A vessel engaged in fishing, and at anchor, should exhibit:
none of these
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
Which statement is TRUE of a 30-meter sailing vessel underway?
She must show sidelights and a stern light in restricted visibility
Which statement is TRUE when you are towing more than one barge astern at night?
all the barges in the tow must be lighted
A 20-meter sailing vessel must exhibit at night:
a stern light
Which vessel may exhibit identifying lights when not actually engaged in her occupation?
none of these
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
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
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
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
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
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
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
The lights prescribed by the rules shall be exhibited:
from sunrise to sunset in restricted visibility
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
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
A vessel may exhibit lights other than those prescribed by the rules as long as the additional lights:
all of these
As defined in the navigation rules, the arc of visibility for sidelights is from right ahead to:
22.5˚ abaft the beam
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
As defined in the navigation rules, the arc of visibility for sidelights is _____.
112.5˚
