Lights

Question 1

What light is this?
What is its special circumstance?
What is the day shape?
What is the fog signal?

Answer 1

• RAM
  Engaged in undewrwater operations
• Size unknown
• End on aspect
  -Could be at anchor
• Day shapes, diamond ball, vertical line

Fog signal, DELTA -one prolonged follow by two short
at intervals not exceeding 2 minutes

Question 2

What is this? Day shape? + Fog signal will come up in exam

Answer 2

Aground
Port Aspect
Probably over 50m

Day shape = 3 vertical black balls

Sound =
3 distinct strokes of the bell
5s rapid ringing of the bell
3 distinct strokes of the bell

at intervals not exceeding 1 minute

If OVER 100m

Deck lights should be on

3 distinct strokes of the bell
5s rapid ringing of the bell
3 distinct strokes of the bell

followed by 5s sounding of the gong in the aft part of the vessel

Question 3

All round white light? _______________

Question 4

What is the range of a mast head light on a 40m M/Y?

Answer 4

5 Miles

Question 5

What is the range of a stern light?

Question 6

Answer 6

RAM
Towing
greater than 50
exceeds
STBD aspect

Mast arc - 225 deg over the horizon, range 6NM

RULE 24

Day shape

BLACK
ball diamond ball, vertical line

diamond on tow

fog signal?

Question 7

Answer 7

Power driven vessel, towing alongside

fog signal?

Question 8

What is a masthead light?

Answer 8

a white light placed over the fore and aft centreline of the vessel

showing an unbroken light over an arc of the horizon of 225

degrees and so fixed as to show the light from right ahead to 22.5 degrees abaft the beam on eitherside of the vessel.

Question 9

What is a sidelight?

Answer 9

Lights on each side showing an unbroken light over an arc of the horizon of 112.5 degrees

so fixed as to show the light from right ahead to 22.5 degrees abaft the beam on itsrespective side.

Vessel >20 sidelights may be combined in one lantern carried on the fore + aft centreline

Question 10

what is a Sternlight?

Answer 10

a white light placed as nearly as practicable at the stern
showing an unbroken light over an arc of the horizon of 135 degrees and so fixed as
to show the light 67.5 degrees from right aft on each side of the vessel.
(d)

Question 11

What is a towing light?

Answer 11

a yellow light having the same characteristics as the
‘sternlight’ defined in paragraph I of this Rule

Question 12

What is a All round light?

Answer 12

means a light showing an unbroken light over an arc of the
horizon of 360 degrees.

Question 13

What is a Flashing light ?

Answer 13

means a light flashing at regular intervals at a frequency of 120
flashes or more per minute.

Question 14

What is the
range & arc of a masthead light on a PDV over 50m?

Answer 14

Range - 6 miles
Arc- 225 deg

Question 15

What is the range/arc of sidelights on a PDV over 50m?

Answer 15

Range- 3 Miles
Arc- 112.5 deg

Question 16

What is the range/arc of a sternlight on a PDV over 50m?

Answer 16

Range- 3 miles
Arc - 135 deg

Question 17

A vessel more than 12m in length but less than 50m? Masthead light range?

Answer 17

5 miles

Question 18

What is the range of a vessels sidelights, over 12m and less than 50m?

Answer 18

2 miles

Question 19

There is a certain way to say all lights answers, what is it?

Answer 19

1.Type of vessel
2.Length
3.Aspect
4.Special Circumstances
5.Under Way
6.Making Way

Question 20

Correctly answer this?

Answer 20

This is a Vessel
Length is Unknown
Aspect - seen from astern
Special circumstances - NUC
Making way

or

She could be a vessel aground, seen from dead ahead, less than 50m

Question 21

What would this be?

Answer 21

A PDV
Probably over 50m
STBD aspect
no circumstances
Underway

Question 22

What is this?

Answer 22

A PDV
Less than 50m
STBD aspect
no circumstances
Underway

Question 23

What is this?

Answer 23

A PDV
Probably over 50m
PORT aspect
no circumstances
Underway

Question 24

What is this?

Answer 24

A PDV
probably over 50m
PORT aspect
Air-cushioned vessel when operating in nondisplacement mode
Underway

Question 25

What is this?

Answer 25

A PDV Less than 50m seen from dead ahead Seaplane Underway

Question 26

What is this?

Answer 26

A vessel NUC Size- Unknown Seen from dead astern Circumstance - NUC Making way or A vessel aground seen from ahead under 50m

Question 27

What is this?

Answer 27

A Vessel Length- Unknown Aspect- Unknown Circumstance - NUC Underway **No sidelights or stern light therefore underway** Not making way - Underway

Question 28

What is this?

Answer 28

A vessel Size - Unknown (never tell NUC size) Aspect - Port Due to exceptional circumstances she is unable to comply with the rules - **NUC** Making way

Question 28

What is this?

Answer 28

A vessel Length - Probably over 50m STBD aspect Circumstance - RAM Making way

Question 29

What is this?

Answer 29

A vessel Length - Unknown Aspect - Unknown (All round lights) RAM Underway As soon as she has a masthead light or sidelight she is then Making way

Question 30

What is this?

Answer 30

A vessel Length- Probably over 50m Aspect - PORT Circumstance - At anchor and RAM Neither underway or making way

Question 31

What is this?

Answer 31

A PDV **tug and tow** Length - less than 50m Aspect - STBD Circumstance - Towing Underway Length of tow - Less than 200m, measured from the stern

Question 32

Can you define the white light on the bottom on the right?

Answer 32

This is a **masthead light** Arc of Visibility - 225deg Unbroken light - WHITE

Question 33

WHAT IS THIS?

Answer 33

A vessel CBD Length - **Probably over 50m** Seen from STBD Aspect She is UNDERWAY + Day shape = Cylinder

Question 34

What is this candidate?

Answer 34

**white over red, pilot ahead** A vessel engaged in pilotage duty You cannot tell the size of a pilot vessel

Question 35

What is this, and what length?

Answer 35

This is a pilot vessel at anchor length = under 50m Aspect = Pointy end, port

Question 36

What is this?

Answer 36

A vessel **engaged in dredging or underwater operations** RAM Size = Unknown Clear to pass down the green side

Question 37

What is this?

Answer 37

A vessel Engaged in mine clearance operations RAM Under way, possibly making way **you are unable to tell if she is making way** **Inform the master, call on the radio to ensure she is clear to pass**

Question 38

A vessel NUC

Answer 38

A vessel NUC Length - Unknown Aspect - Unknown

Question 39

What is this?

Answer 39

A vessel **Aground** Length - Probably over 50m Pointy end - Port Aspect

Question 40

What is this? and what is the aspect?

Answer 40

A vessel At anchor Length- Probably over 50m Pointy end - **Port aspect**

Question 41

What could this be? (White light)

Answer 41

This could be a number of things sir -The stern of a vessel -Vessel at anchor under 50m -Masthead of a PDV coming over horizon -Life jacket -Life raft

Question 42

You are going along, and you see these lights out of the STBD window.

Answer 42

A PDV engaged in towing Length - cannot tell from stern Aspect - Astern **this is indicating i am between the tug and tow**

Question 43

What is this?

Answer 43

This is a PDV Probably over 50m Aspect - Seen from STBD Engaged in towing **Length of tow exceeds 200m** measured from the stern of the towing vessel to the aft end of the tow

Question 44

What is this?

Answer 44

A PDV engaged in towing operations length - Tow is less than 200m Tug - less than 50m

Question 45

What is this?

Answer 45

A PDV Engaged in towing operations Probably over 50m Length of tow - More than 200m