Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

OOW 3000 GT Oral Prep > Lights -Theory > Flashcards

Lights -Theory Flashcards

1
Q

Where is a masthead light placed on a vessel?

A

Over the fore + Aft of the centreline

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

What are the specs of a Masthead light?

A

Unbroken arc - 225 degrees
Right ahead to 22.5 degrees abaft her beam

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

What is a sidelight? What are its specs?

A

Green Light STBD
Red light PORT

Unbroken Light - 112.5 degrees

22.5 degrees from either side

Each showing an unbroken arc of 112.5 Degrees so as fixed as to show the light from right ahead to 22.5 degrees abaft her beam on the respective side.

Vessels Under 20m may have a combined side light in one lantern

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

What is a sternlight? what are its specs?

A

Unbroken Light - 135 degrees

67.5 degrees from aft either side

White light placed as nearly practicable at the stern showing an unbroken light over the horizon of 135 degrees

and so fixed as to show the light from 67.5 degrees from right aft on each side of vessel

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

What is a towing light? what are its specs?

A

Yellow light with same characteristics as a stern light

Unbroken Light - 135 degrees

67.5 degrees from aft either side

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

What is an all round light?

A

Unbroken arc of 360 degrees over the horizon

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

What is a flashing light interval?

A

Flashing at regular intervals of 120 or more per minute

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

What is the range of a masthead light of a vessel 50+ metres in length?
+ Arc of vis?

A

6 Miles

Arc of vis 225 (20 points)

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

What is the range of a Sidelight of a vessel 50+ metres in length?
+ Arc of vis?

A

3 Miles

Arc of vis 112.5 (10 points)

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

What is the colour/ range of a Sternlight of a vessel 50+ metres in length?
+ Arc of vis?

A

Colour - White
Range- 3 Miles
Arc 135 (12 Points)

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

For a vessel 50+ metres in length

What is the Range of

-Masthead light
-Sidelight
-Sternlight
-Towing light
-White, red, green or yellow all round white light

A

50+ metres Ranges

-Masthead light
6 miles

-Sidelight
3 miles

-Sternlight
**3 miles **

-Towing light
3 miles

-White, red, green or yellow all round white light
3 miles

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

For a vessel 12+ metres in length but less than 50m

What is the Range of

-Masthead light
-Sidelight
-Sternlight
-Towing light
-White, red, green or yellow all round white light

A

12+ metres in length but less than 50m
Ranges

-Masthead light -
5 miles (unless less than 20m - 3 miles)

-Sidelight
2 miles

-Sternlight
2 miles

-Towing light
2 miles

-White, red, green or yellow all round white light
2 miles

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

For a vessel less than 12 metres in length

What is the Range of

-Masthead light
-Sidelight
-Sternlight
-Towing light
-White, red, green or yellow all round white light

A

less than 12m

Ranges

-Masthead light
2 miles

-Sidelight
1 mile

-Sternlight
2 miles

-Towing light
2 miles

-White, red, green or yellow all round white light
2 miles

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

A PDV underway shall exhibit

Under 50 metres
50+ metres

A

Mastheadight FWD

A second Mast headlight Abaft of and HIGHER than the FWD one except vessels less than 50m not obliged but may do so

sidelights
sternlights

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

What light does an Air cushioned vessel display?

A

All round flashing yellow light

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

What lights shall an inconspicuous, partly submerged vessels or objects being towed show?

Light and range

A

a white all-round light, 3 miles.

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

A WIG craft only when taking-off, landing and in flight near the surface shall Exhibit

A

a masthead light forward

a second masthead light abaft of and higher than the forward one; except
that a vessel of less than 50 metres in length shall not be obliged to exhibit
such light but may do so;

(iii) sidelights;
(iv) a sternlight.

+ a high intensity
all-round flashing red light.

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

What light does a power-driven vessel of less than 12 metres in length display?

A

an all-round white light
and
sidelights;

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

A power-driven vessel when towing shall exhibit:

&

When the length of the tow, measuring from the
stern of the towing vessel to the after end of the tow exceeds 200 metres??

A

two masthead lights in a vertical line.

When the length of the tow, measuring from the
stern of the towing vessel to the after end of the tow exceeds 200 metres,
three such lights in a vertical line;

sidelights;
a sternlight;

a towing light in a vertical line above the sternlight;

when the length of the two exceeds 200 metres, a diamond shape where it
can best be seen.

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

A sailing vessel underway shall exhibit:

A

sidelights;
sternlight

May be combined at the top of the mast, where can best be seen

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

A sailing vessel of less than 7 metres in length shall exhibit the following lights

A

sidelight
sternlight

but if she does not, she shall

have ready at hand an electric torch or lighted lantern showing a white light which
shall be exhibited in sufficient time to prevent collision

22
Q

A vessel engaged in fishing, whether underway or at anchor, shall exhibit only the
lights and shapes prescribed in this Rule.

A

GREEN
WHITE

two all-round lights in a vertical line, upper being green and the lower
white,

a masthead light abaft of and higher than the all-round green light; a vessel
of less than 50 metres in length shall not be obliged to exhibit such a light
but may do so

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

23
Q

A Vessel NUC shall exhibit

A

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

(ii) two balls in a line (day)

Making way - sidelights and a sternlight.

24
Q

You see Sidelights + Sternlight on a vessel? what does this mean?

A

This is showing that the vessel is making way

25
Q

What is the distance between the two black balls

Dayshape; NUC

A

At least 1.5M

26
Q

What is the range of the two round red lights of a vessel NUC ?

  • 50+m
    &
  • Under 50m
A

50+m
3 miles

&

Under 50m
2 miles

27
Q

What height above the hull must the red lights from a NUC vessel over 20m vessel be?

A

No less than 4 metres above the hull

& 2m above the gunwhale for vessels less than 20m

28
Q

A vessel RAM except a vessel engaged in mine
clearance operations, shall exhibit:

A

(i) three all-round lights in a vertical line where they can best be seen. The
highest and lowest of these lights shall be red and the middle light shall be
white;

(ii) three shapes in a vertical line where they can best be seen. The highest and
lowest of these shapes shall be balls and the middle one a diamond;

(iii) when making way through the water, masthead light or lights, sidelights
and a sternlight, in addition to the lights prescribed in sub-paragraph (i);

29
Q

What is the range of the RED lights of a vessel RAM?

A

2 miles

30
Q

What is the range of a vessel RAM sternlight?

A

2 or 3 miles depending on the size of vessel

31
Q

What is the range of a RAM’s anchor light, vessel less than 50m

A

2 miles

32
Q

A vessel engaged in underwater operations has green lights on the side free of obstruction, what is the range of these?

A

2 or 3 miles depending on size of vessel

33
Q

How far should you steer away from a minesweeper?

A

1000m

34
Q

A minesweeper has diamonds on one side and balls on the other side, which is the obstructed side?

How far apart do the balls have to be?

A

The side with the balls is obstructed

Balls - Not less than 1.5m apart

35
Q

You see a vessel at anchor, size = less than 50m

what is the range of the anchor light?

A

2 miles

36
Q

what is the diameter of an anchor ball shape?

A

Diameter = not less than 0.6m

37
Q

A vessel at anchor, size = more than 50m

What is the range of these lights?

How far above the hull does the Aft anchor light have to be?

A

Range 3 miles

Fwd anchor light - not less than 4.5m above the

Aft anchor light= no less than 6m above the hull

38
Q

A vessel aground under 50m, what is the range of the red lights?

A

2 miles

39
Q

A vessel aground under 50m, what is the range of the All round white light?

A

2 miles

40
Q

A vessel aground over 50m, what is the range of the red lights?

A

3 miles

41
Q

A vessel aground over 50m, what is the range of the All round white light?

A

3 miles

42
Q

a vessel intending to overtake another vessel to stbd shall

A

two prolonged blasts followed by one short blast

to mean ‘I intend to overtake
you on your starboard side’;

43
Q

a vessel intending to overtake another vessel port shall

A

two prolonged blasts followed by two short blasts

44
Q

What sound must a vessel sound to agree the overtake?

A

one prolonged, one short, one prolonged and one short blast

45
Q

How wide must a black ball be? Vessel 20+metres

A

No less than 0.6m

46
Q

A vessel 20+ metres has two black balls for NUC, how far apart must these balls be?

A

No less than 1.5m apart

47
Q

A vessel 20+ metres What is the width/height of the diamond?

A

No less than 0.6m

Height 2x diameter

48
Q

A vessel 20+ metres What is the width/height of the diamond?

A

No less than 0.6m

Height 2x diameter

49
Q

What flag shall a fishing vessel display when;

Shooting nets

A

Zulu

50
Q

What flag shall a fishing vessel display when;

Hauling nets

A

Golf

51
Q

What flag shall a fishing vessel display when;

Nets made fast

A

Papa

OOW 3000 GT Oral Prep (23 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions