Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

OUPV Captain's License > Lights and Dayshapes > Flashcards

Lights and Dayshapes Flashcards

1
Q

BOTH INTERNATIONAL & INLAND According to the Rules, which vessel MUST show two masthead lights in a vertical line?

A

A power-driven vessel less than 50 meters in length with a 20-meter tow

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

BOTH INTERNATIONAL & INLAND A vessel showing a green light over a white light in a vertical line above the level of the sidelights is…

A

Trawling

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

INTERNATIONAL ONLY If a vessel displays three all-round red lights in a vertical line at night, during the day she may show…

A

A cylinder

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

BOTH INTERNATIONAL & INLAND Barges being towed at night must exhibit navigation lights…

A

At all times

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

BOTH INTERNATIONAL & INLAND A power-driven vessel exhibits the same lights as a…

A

Pushing vessel and a vessel being pushed, when they are in a composite unit

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

BOTH INTERNATIONAL & INLAND You are approaching another vessel at night. You can see both red and green sidelights and, above the level of the sidelights, three white lights in a vertical line. The vessel may be ___________________.

A

towing a tow more than 200 meters astern

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

BOTH INTERNATIONAL & INLAND What is the minimum length of an anchored vessel which is required to show a white light both forward and aft?

A

50 meters

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

BOTH INTERNATIONAL & INLAND Which statement is TRUE concerning a vessel under oars?

A

She is allowed to show the same lights as a sailing vessel

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

BOTH INTERNATIONAL & INLAND What is used to show the presence of a partly submerged object being towed?

A

A searchlight from the towing vessel in the direction of the tow

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

BOTH INTERNATIONAL & INLAND What signal would a vessel aground show during daylight?

A

Three black balls in a vertical line

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

BOTH INTERNATIONAL & INLAND An inconspicuous, partly submerged vessel or object is being towed, where the length of the tow is 100 meters, shall show ________________.

A

a diamond shape

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

BOTH INTERNATIONAL & INLAND The lights prescribed by the Rules shall be exhibited ________________________

A

from sunrise to sunset in restricted visibility

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

BOTH INTERNATIONAL & INLAND Which vessel MUST show two masthead lights in a vertical line?

A

A power-driven vessel less than 50 meters in length with a 20-meter tow

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

BOTH INTERNATIONAL & INLAND What lights must be shown on a barge being towed astern at night?

A

Sidelights and a sternlight

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

INTERNATIONAL ONLY A vessel displaying three red lights in a vertical line at night and a black cylinder dayshape is…

A

Constrained by her draft

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

BOTH INTERNATIONAL & INLAND A lantern combining a vessel’s side lights may be shown on a…

A

15-meter sailing vessel

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

BOTH INTERNATIONAL & INLAND A “flashing light”, by the definition given in the rules, is a light that…

A

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

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

BOTH INTERNATIONAL & INLAND A white masthead light shows through an arc of how many degrees?

A

225 degrees

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

BOTH INTERNATIONAL & INLAND Which Lights must sailboats show when underway at night?

A

Red and green sidelights and a sternlight

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

BOTH INTERNATIONAL & INLAND A towing vessel 35 meters in length, with a tow 100 meters astern, must show a minimum of how many masthead lights?

A

two

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

BOTH INTERNATIONAL & INLAND A 22-meter sailing vessel when also being propelled by machinery shall show during daylight hours a…

A

A conical shape, apex downwards

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

BOTH INTERNATIONAL & 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

67.5 degrees

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

BOTH INTERNATIONAL & INLAND Which lights would be shown at night by a vessel which is restricted in her ability to deviate from her course?

A

Three lights in a vertical line, the highest and lowest red and the middle white

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

BOTH INTERNATIONAL & INLAND A towing light is a yellow light having the same characteristics as a __________________________.

A

Sternlight

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

BOTH INTERNATIONAL & INLAND What dayshape must be shown on a partly submerged vessel when it is being towed?

A

A diamond

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

BOTH INTERNATIONAL & INLAND The arc of visibility for sidelights is from right ahead to…

A

22.5 degrees abaft the beam

27
Q

BOTH INTERNATIONAL & INLAND A towing light, according to the Rules, is a…

A

A yellow light

28
Q

BOTH INTERNATIONAL & INLAND A vessel being towed at night must show…

A

Sidelights and a sternlight

29
Q

BOTH INTERNATIONAL & INLAND A vessel may exhibit lights other than those prescribed by the Rules as long as the additional lights…

A

Do not interfere with the keeping of a proper look-out

30
Q

BOTH INTERNATIONAL & INLAND Which vessel may combine her sidelights and sternlight in one lantern on the fore and aft centerline of the vessel?

A

A 16-meter sailing vessel

31
Q

BOTH INTERNATIONAL & INLAND A single towing light will be required by the Rules to be carried above a vessel’s sternlight ________________.

A

Only if she is towing astern

32
Q

BOTH INTERNATIONAL & INLAND The minimum length of a power-driven vessel that must show forward and after masthead lights is…

33
Q

BOTH INTERNATIONAL & INLAND A vessel not under command shall display…

A

Two red lights at night and two black balls during daylight

34
Q

BOTH INTERNATIONAL & INLAND A vessel being towed at night is required to display ____________________.

A

Sidelights and a sternlight

35
Q

BOTH INTERNATIONAL & INLAND What is the minimum length of an anchored vessel which is required to show both forward and aft masthead lights?

36
Q

INTERNATIONAL ONLY At night, a power-driven vessel underway of less than 7 meters in length where its maximum speed does not exceed 7 knots may show, as a minimum _________________.

A

One all-round white light

37
Q

BOTH INTERNATIONAL & INLAND A power-driven when underway exhibits the same lights as a ______________.

A

Pushing vessel and a vessel being pushed, when they are in a composite unit

38
Q

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

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

39
Q

BOTH INTERNATIONAL & INLAND A towing vessel pushing a barge ahead and rigidly connected in a composite unit shall show the lights of…

A

A power-driven vessel, not towing

40
Q

BOTH INTERNATIONAL & INLAND What dayshape must be shown by a vessel over 20 meters fishing which has gear extending more than 150 meters horizontally outward from it?

A

One cone with its apex upwards

41
Q

BOTH INTERNATIONAL & INLAND A vessel transferring provisions or cargo at sea shall display during the day…

A

Three black shapes in a vertical line; the highest and lowest shall be balls and the middle one a diamond

42
Q

BOTH INTERNATIONAL & INLAND A vessel servicing a pipeline during the day shall display…

A

Three black shapes in a vertical line; the highest and lowest are balls, and the middle one is a diamond

43
Q

BOTH INTERNATIONAL & INLAND A vessel towing is showing three forward white masthead lights in a vertical line. This means that the length of the…

A

Tow is greater than 200 meters

44
Q

BOTH INTERNATIONAL & INLAND What lights do the rules require a barge being towed astern at night to display?

A

Sidelights and a sternlight

45
Q

BOTH INTERNATIONAL & INLAND What dayshape must be shown on a partly submerged vessel which is being towed?

46
Q

BOTH INTERNATIONAL & INLAND Which lights would be shown at night by a vessel which is restricted in her ability to deviate from her course?

A

Three lights in a vertical line, the highest and lowest red and the middle white.

47
Q

BOTH INTERNATIONAL & INLAND Which power-driven vessel is NOT required to carry a light in the position of the after masthead light?

A

A vessel of 45 meters in length trolling

48
Q

BOTH INTERNATIONAL & INLAND A power-driven vessel “not under command” at night must show her sidelights when.

A

Making headway

49
Q

BOTH INTERNATIONAL & INLAND During the day, a vessel with a tow over 200 meters in length will show…

A

A diamond shape

50
Q

INTERNATIONAL ONLY At night, a power-driven vessel underway of less than 7 meters in length where its maximum speed does not exceed 7 knots may show, as a minimum,…

A

One all-round white light

51
Q

BOTH INTERNATIONAL & INLAND According the the Rules of the Road a “flashing light” by the definition given in the rules, is a light that _____________.

A

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

52
Q

BOTH INTERNATIONAL & INLAND A vessel at anchor will show a…

A

An all-round white light or one ball

53
Q

BOTH INTERNATIONAL & INLAND Which vessel must exhibit forward and after masthead lights when underway?

A

A 50-meter power-driven vessel

54
Q

BOTH INTERNATIONAL & INLAND A towing light is a yellow light having the same characteristics as a(n)…

A

Sternlight

55
Q

BOTH INTERNATIONAL & INLAND A towing vessel 25 meters in length is pushing barges ahead. How many white masthead lights is the vessel REQUIRED to show at night?

56
Q

BOTH INTERNATIONAL & INLAND A towing vessel 30 meters in length is pushing barges ahead. How many white masthead lights is the vessel REQUIRED to show at night?

57
Q

BOTH INTERNATIONAL & INLAND Which vessel is required to exhibit forward and after masthead lights when underway?

A

A 50-meter power-driven vessel

58
Q

BOTH INTERNATIONAL & INLAND A single towing light will be required by the Rules to be carried above a vessel’s sternlight ________________.

A

Only if she is towing astern

59
Q

BOTH INTERNATIONAL & INLAND Which vessel would display a cone, apex downward?

A

A vessel proceeding under sail and machinery

60
Q

BOTH INTERNATIONAL & INLAND Which power-driven vessel is NOT required to carry a light in the position of the after masthead light?

A

A vessel of 45 meters in length trolling

61
Q

BOTH INTERNATIONAL & INLAND A vessel engaged in fishing must display a light in the direction of any gear that extends outward more than 150 meters. The color of this light is…

62
Q

BOTH INTERNATIONAL & INLAND Dayshapes must be displayed…

A

During daylight hours in any visibility

63
Q

BOTH INTERNATIONAL & INLAND A single towing light will be carried above a vessel’s sternlight…

A

Only if she is towing astern

OUPV Captain's License (10 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions