Seam 6

67問 • 1年前

問題一覧

It is the weight of the water displaced by the floating vessel which equals to the weight of the vessel itself.

Displacement

Which among the tonnage measurements includes not only cargo, but also the weight of fuel, ballast, passengers, and crew, and all the provisions?

Deadweight Tonnage

What convention states a comprehensive set of regulations to determine the minimum allowable freeboard and defines the conditions of load line assignment?

ICLL 1966

What provides a method for estimating the additional draft or for determining the extra load that could be taken onboard when a vessel is being loaded in water of density less than that of salt water?

Deadweight Scale

In an extract of a ship’s hydrostatic table shown below, determine the Displacement in tons by linear interpolation when the ship’s draft is 1.65 tons.

2679 tons

It is the basic freeboard line at the same level as the Plimsoll Line and other load lines are marked based on this freeboard line.

S – Summer

A vessel in sea water has a Volume Displacement of 16,300 m3. L/S Weight is 4,600 tons. How much cargo is loaded (Payload) on board when bunker and stores are calculated to be 1,250 tons? Note: Find out first the Weight Displacement, and the Deadweight.

10,857.5 tons

In an extract of a Deadweight Scale of M/V Donnacona provided below, determine the displacement of a vessel in a sea water draft of 9.3 m.

31,000 tons

A box-shaped vessel draws 7.8 m in dock water of density 1,009 kgs./m³. Find the draft in salt water of density 1,025 kgs/m³.

7.68 m

In an extract of a ship’s hydrostatic table shown below, the LCF are values in distance based from the Aft Perpendiculars (AP). Determine the location of LCF on the draft 1.54 meters if the LBP is 148 meters.

4.42 m forward of amidship

Which of the following is the measure we get when we fill the cargo hold completely with a loose bulk cargo, e.g. grain or coal where cargo goes all the way to the vessel’s hull, behind the garnish and between ribs?

Grain capacity

It is the space occupied by a ton of cargo and gives the information about what volume the cargo will take, and it is given in ft.³ or m³.

Stowage Factor

Which of the following gives information about the m³ capacity of all cargo holds on board vessel?

Cargo Capacity Plan

We want to load grains with a SF of 1.8 m³/ton into hold #3. How many tons will the hold take? Use the provided Sample Hold Capacity Plan of a Vessel provided below.

2,003 tons

The vessel shall load 3,376 tons of grains with a SF of 1.2 m³/ton. Find the space (volume) of a cargo hold required for the cargo.

4,051 m³

A hold measures 18.2 m × 10.9 m × 5.6 m. The 2,085 cases measuring 1.1 m × 0.85 m × 0.50 m are loaded. Allow 5% for broken stowage. Find the space remaining.

87.53 m³

A ship’s hold is 7,654 m³. It is to be filled with boxes of canned goods whose dimensions are 1 m x 1.5 m x 1.5 m (2.25 m³) per box having the same weight. If the cargo has a SF of 1.35 m³/ton, how many boxes of canned goods the hold can load allowing 10% for broken space?

3,061 boxes

A hold capacity of 1180m³ has in it 150 tonnes of iron (S.F 0.42 m³ /tonne). How many bales of grass can be stowed in the hold (S.F. 2.8 m³ /tonne and 6 bales to the tonne)?

239 bales

A cargo of 2,000 tons with a SF of 1.5 m³/ton will be stowed in a ship’s hold measuring 30 meters length, 20 meters Breadth, and 10 meters Depth (height). How high will the cargo stow if stowed flat on the full width and length tank top?

5 meters

Which of the following refers to the distance measured from the liquid surface vertically upwards to the main deck?

Ullage

When loading, which one is the most important consideration for a tank vessel?

Stress on the hull

Aboard a vessel, multiplying a load's weight by the distance of the load's center of gravity from the centerline will result in the load's

Transverse moment

Which of the following is not included in the descriptions of a ship’s loading manual?

The hydrostatic data including the Deadweight Scale data.

When a vessel is stationary and in a sagging condition, the main deck is subjected to which of the following?

Compression stress

Your vessel has a midships engine room and the cargo is concentrated in the end hold. How would you describe the vessel’s condition?

Hogging with tensile stress on the main deck

The tendency of a vessel to return to its original trim after being inclined by an external force is called:

Longitudinal stability

The forward draft of your ship is 27-11' and the after draft is 29-03". The draft amidships is 28'-05'. How would you describe the vessel's condition?

Hogged

Which of the following is not included in the descriptions of the loading computer as an invaluable shipboard calculation tool of the ship's cargo officer?

The trimming, stability, and sounding data

All of the following can be determined by the use of a Loadicator EXCEPT:

Moment to trim one inch

When using a Loadicator, unless the density correction is applied, the center of gravity of a loaded compartment is assumed to be located on which of the following?

At the geometric center of the compartment

Which of the following is used in finding the Change of Trim?

COT = Trimming Moment/MCT 1 cm

What does the “l” represent in the formula Change of Draft Aft = l/L x Change of Trim?

Distance of CF from Aft in meters

Which of the following shall you use in finding the Change of Draft Forward?

Change of Draft Forward in cm = Change of Trim - Change of Draft Aft

A ship of 104 m. long arrives in port with draft 3.5 m Forward and 4.8 m Aft. TPC 12 tons; and MCT 1cm. 122 tons-m. The center of floatation is 1.7m. aft of amidship. If 77 tons of cargo is loaded in position 23m. forward of amidship and 41 tons of cargo is discharged from 13 m aft of amidship. Find the Bodily Sinkage.

3cm

Referring to problem no. 34, find the moments about the center of flotation.

2,365.2 t-m

Referring to problem no. 34, find the Change of Trim (COT).

19.39cm or .1939m

Referring to no. 34, find the Change of Draft Aft (CDA)

9.38cm or 0.0938m

Referring to problem no. 34, find the Change of Draft Forward (CDF).

10.01cm or 0.1001m

Referring to problem no. 34 find the New Draft Forward.

3.6301m

Referring to problem no. 34, find the New Draft Aft.

4.7362m

Which of the following Simpson’s Rules is used where the area is found by multiplying the successive ordinates, including the ends, by the multipliers 1-4-2-4-2-4-_ _ _1, adding the result together and then multiplying one third of the common interval (h)?

First Rule

What rule is applied when the area is divided into a specific number of equidistant coordinates which must be 4, 7, 10, 13, or 16 and etc. and placing against the ordinates the figure 1-3-3-1 in groups of 4?

3/8 Rule

Using Simpson’s First Rule, find the area of waterplane which has the following half ordinates, spaced 12 meters apart, 1.7, 5.9, 7.0, 5.2, 1.3 meters.

491.2 m²

Which of the following Simpson’s Rules is used where the area is found by multiplying the successive ordinates, including the ends, by the multipliers 1-3-3-2-3-3-2_ _ _1, adding the result together and then multiplying one third of the common interval (h)?

3/8 Rule

Find the area of waterplane using the Simpson’s 3/8 Rule. The common interval is 15 meters and the ordinates are: 0, 9.0, 13.3, 14.7, 12.8, 7.5, 0.6 meters.

887.6 m²

Which of the following Simpson’s Rules states that the area of the waterplane is equal to 5 times one end ordinate, plus 8 times the other, minus the common external ordinate( in that order), all multiplied by one twelfh of the common interval?

5/8 Rule

Three ordinates, a, b, and c are 12 meters apart and have lengths of 29.2, 33.5 and 37.6 meters respectively. Find the area contained between a and b.

376.4 m²

Find the area of waterplane which has the following half ordinates and a common interval is 8 meters: 0, 3.0, 4.7, 6.2, 7.3, 7.8, 7.3 6.9, 5.3, 3.1, 0 meters.

838.4 m²

Which of the following Simpson’s Rules shall you use to find the area between two adjacent ordinates when the values of these ordinates and of the third consecutive ordinate are given?

5/8 Rule

Find the total volume of the vessel enclosed between bulkhead a and e which are each spaced by 30 ft. when the areas are as follows: Bulkhead: a = 100 ft.², b = 350 ft.², c = 630 ft.², d = 450 ft.², and e = 200 ft.².

95,200 ft.³

Using the Trapezoidal Rule, find the area of the ship’s waterplane whose length is 72 ft. Half length of the ordinates in feet are 6, 13, 15, 16, 17, 16, and 14.

2,088 ft.²

Using the Deadweight scale provided below, determine the Displacement of the vessel whose Mean SW Draft is 7.65m?

25000 tons

Find the TPC for a ship whose water plane area is 1,082 m² when it is floating in water density of 1.025 tons/m³.

11.09 tons

A vessel is in water density of 1,022 kgs/m³ has a draft of 9.82 m, FWA of 198 mm and a TPC of 22 tons/cm. Find the DWA in meter/s.

0.09504 m

On a vessel of 12,000 tons displacement, there are two slack deep tanks of palm oil (S.G. 0.84). Each tank is 42' long and 32' wide. What is the reduction in metacentric height or Virtual rise of G due to free surface with the vessel in sea water (S.G. 1.025)?

0.45 ft.

What would happen to the ship’s draft when ship moves from water of higher density to another water of lower density?

Increase draft

In ship stability calculations, which allowance is applied if the mean draught changes after a ship passes from salt water to fresh water, or vice-versa, the ship is loaded to its summer displacement and normally measured by millimeters?

Fresh Water Allowance (FWA)

A ship of 12,560 tons displacement is floating in salt water (SW) and is carrying oil of relative density 0.82 in a double-bottom tank. The tank is 30 m long, 20 m wide, and is [divided at the center line]. Find the virtual loss of GM due to this tank being slack.

0.326 meter

A partially filled tanks with liquid or cargo (slack tank), liquid inside the tank is liable to move freely and create a motion that maybe harmful and can affect the stability of the vessel, it is also referred as

Free surface effect

Which of the following is used to solve for the Dock Water Allowance (DWA)?

DWA = FWA x (1,025 - Given Density)/25

The geometric center of the water plane on which a vessel floats. A vessel pitches, or rotates through this point, when move by an external force.

center of floatation

Which among the tonnage measurements includes not only cargo, but also the weight of fuel, ballast, passengers, and crew, and all the provisions?

Deadweight tonnage

What convention states a comprehensive set of regulations to determine the minimum allowable freeboard and defines the conditions of load line assignment

International Convention on Load Lines 1966

deadweight scale

It is the basic freeboard line is one forty eight of the summer load draft above the summer load line.

T-Tropical

The ship’s light displacement is 8951 MT. she has fuel and lube oil remaining on board listed as follows. IFO=1013 MT, MDO = 132MT and LO = 23 MT. She also has FW = 205 MT and the sum of ballast water =9675 MT. Her constant is 240 MT.

20, 239.0 tons

The vessel MV Panamax, FWA = 306 mm is fully loaded to her summer draft displacement. Find the mean draft is she is floating in dock water density of 1.012t/m³

13.454 m

Seam 5

Gwen Yuchen · 60問 · 2年前

Seam 5