Assignment of Freeboard Flashcards

1
Q

Why are load lines assigned to ships?

A

To ensure that the ship has sufficient freeboard to ride the seas in the prevailing weather conditions.

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2
Q

What vessels are exempt from load lines?

A

-Warships.
-Ships less that 24 meters.
-Existing ships less than 150 GT.
-Yachts not engaged in trade.
-Fishing vessels.

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3
Q

When must the MCA form of Water and Freeboard Notice be completed?

A

-

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4
Q

What is the criteria to deem a section of water a tropical zone?

A

-1% of wind speeds exceeds 34kts.
-1 tropical cyclone occurring once every 10 years.

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5
Q

What is the criteria to deem a section of water a Summer zone?

A

-10% of wind speeds exceeds 34kts.

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6
Q

What is the criteria to deem a section of water a Winter North Atlantic zone?

A

-60 Degrees North and above.

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7
Q

What is the criteria to deem a section of water a winter zone?

A

-All other regions.

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8
Q

What is Depth for freeboard?

A

(D) is the moulded depth at amidships, plus the freeboard deck thickness at the sides.

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9
Q

What is the Superstructure?

A

A decked structure on the freeboard deck, extending to both sides of the ship or with the side plating not being inboard of the shell plating more than 4% of the breadth.

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10
Q

What is the Superstructure Deck?

A

A deck forming the upper boundary of a superstructure.

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11
Q

What does the term watertight mean?

A

Capable of preventing the passage of water through the structure and inboard.

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12
Q

What does the term weathertight mean?

A

The sea conditions will not penetrate into the ship.

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13
Q

What is flush deck ship?

A

A deck which has no superstructure on the freeboard deck.

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14
Q

What is the block coefficient?

A

The ratio of the volume of the ship’s hull below the waterline to the total volume of a rectangular block having the same length, breadth, and depth as the hull.

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15
Q

What is amidships?

A

the middle of the vessels length.

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16
Q

Summarise the stability and stress information that must be provided to the master of a ship assigned load lines under ICLL.

A

-The master of every new ship shall be supplied with information to arrange
for the loading and ballasting of his ship.
-Information shall be provided to the master in a form that is approved by the
Administration or a recognised organization.
-Where any alterations are made to a ship so as to materially affect the loading
or stability information supplied to the master, amended information shall be
provided.
- ships exempt from an incline test should carry on board at all times its approved stability information together
with evidence that the information has been approved by the
Administration.

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17
Q

What are position 1 and position 2 under the ICLL?

A

P1- Upon exposed freeboard deck and raised quarter-decks and upon exposed superstructure decks located in the first quarter length of the vessel.
p2- Upon any exposed superstructure deck in the aft three-quarter length of the vessel.

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18
Q

What is the minimum heights of coamings at P1 and P2?

A

P1-600mm
P2-450mm

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19
Q

What is a Type A ship?

A

-Designed to carry liquid cargos in bulk.
-High integrity of exposed deck with only small access openings.
-Low permeability of loaded cargo components.

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20
Q

What is a Type B ship?

A

All ships other than Type A.

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21
Q

What are the additional construction features for B-60 and B-100?

A

-Ship must be over 100m.
-Protection for the crew on the exposed deck.
-Arrangements for freeing water off of the deck.
-All hatch covers should be made with steel and have adequate strength, sealing and securing.
-Over 150 meters should have some form of loading software.
-Over 20 years freeboard allocation should be revaluated.

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22
Q

What is Accommodation spaces in relation to IBC Code?

A

Corridors, Lavatories, cabins, offices, hospitals, cinemas, games rooms etc

23
Q

What is an Anniversary date in relation to IBC Code?

A

The day and month of each year in which the the International Certificate of Fitness for the Carriage of Dangerous Chemicals in bulk will expire.

24
Q

What is the boiling point in relation to IBC Code?

A

The temperature at which a pro0duct exhibits a vapour pressure qual to the atmospheric pressure.

25
Q

What is the cargo area in relation to IBC Code?

A

Contains cargo tanks, slop tanks, cargo
pump-rooms including pump-rooms, cofferdams, ballast or void spaces

26
Q

What is the cofferdam in relation to IBC Code?

A

Isolating space between two adjacent steel bulkheads or decks

27
Q

What is a control station in relation to IBC Code?

A

Spaces with ship’s radio or main navigating
equipment or the emergency source of power is located or where the fire-recording
or fire-control equipment is centralized.

28
Q

What is a dangerous chemical in relation to IBC Code?

A

Any chemical that presents a hazard based on the safety criteria for assigning products (chapter 17).

29
Q

What is the flashpoint in relation to IBC Code?

A

Temperature in degrees Celsius at which a product will give
off enough flammable vapour to be ignited.

30
Q

What is a hold space in relation to IBC Code?

A

Space enclosed by the ship’s structure in which an
independent cargo tank is situated.

31
Q

What is machinery spaces for Cat A in relation to IBC Code?

A

Snternal-combustion machinery used for main propulsion, oil-fired boilers or fuel unit and generators under 375 kW.

32
Q

What is a machinery space in relation to IBC Code?

A

-All of Cat A
-Ventilation, oil filling station, A/Croom, stabilizers

33
Q

What is a Noxious Liquid Substance in relation to IBC Code?

A

Any substance indicated in the Pollution
Category column of chapters 17 or 18 of the International Bulk Chemical Code.

34
Q

What is a service space in relation to IBC Code?

A

galleys, pantries containing cooking
appliances, lockers, mail and specie rooms, store-rooms and workshops.

35
Q

What is purging in relation to IBC Code?

A

means the introduction of inert gas into a tank which is already in
an inert condition with the object of further reducing the oxygen content and other flammable vapours.

36
Q

What is gas freeing in relation to IBC Code?

A

The process where a portable or fixed ventilation system
is used to introduce fresh air into a tank in order to reduce the concentration of
hazardous gases or vapours to a level safe for tank entry.

37
Q

What is a type 1 ship?

A

A chemical tanker intended to transport cargo with very severe environmental and safety hazards which requires maximum preventative measures.

38
Q

What is a type 2 ship?

A

A chemical tanker intended to transport cargo with appreciably environmental and safety hazards which requires significant preventative measures.

39
Q

What is a type 3 ship?

A

A chemical tanker intended to transport cargo with a sufficiently severe environmental and safety hazards which requires maximum preventative measures.

40
Q

What damage is assumed for a type 1 Ship?

A

To sustain damage anywhere in its length.

41
Q

What damage is assumed for a type 2 Ship over 150m?

A

To sustain damage anywhere in its length.

42
Q

What damage is assumed for a type 2 Ship 150m or less?

A

To sustain damage anywhere in its length except involving either bulkheads bounding a machinery space aft.

43
Q

What damage is assumed for a type 3 Ship over 225m?

A

To sustain damage anywhere in its length.

44
Q

What damage is assumed for a type 3 Ship 225m or less?

A

To sustain damage anywhere in its length except involving either bulkheads bounding a machinery space aft.

45
Q

What damage is assumed for a type 3 Ship less than 125m?

A

To sustain damage anywhere in its length except involving damage to the machinery space located aft but have the ability to survive flooding of that space will be dictated by admin.

46
Q

What is an independent tank?

A

A cargo-containment envelope which is not a part of the hull structure.

47
Q

What is an integral tank?

A

A cargo-containment envelope which forms part of the ships hull and is exposed to the same stresses.

48
Q

What is a gravity tank?

A

A tank with a design pressure of no greater than 0.07 MPa gauge at the top of the tank. (can be both independent or integral)

49
Q

What is a pressure tank?

A

A tank with a design pressure greater than 0.07 MPa gauge at the top of the tank.(can be both independent or integral)

50
Q

What is a controlled tank venting system?

A

PV valves are fitted to each tank to limit pressure or vacuum in the tank.

51
Q

What is an open tank venting system?

A

Free flowing cargo vapours that can go to and from tanks during normal operations.

52
Q

What is an open device?

A

Uses an opening in the tank and only exposes the gauge to the cargo and vapour.

53
Q

What is a restricted device?

A

Penetrates the tank and when in use permits a small quantity of cargo vapour or liquid to be exposed to in the atmosphere.

54
Q

What is a closed device?

A

h penetrates the tank, but which is part of a closed
system and keeps tank contents from being released.