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msap ship stability
  • Padullon Jonathan

  • 問題数 78 • 3/22/2024

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    問題一覧

  • 1

    A vessel is fitted with deep tanks with a capacity of 1,000 tons of fresh water. What quantity of oil with specific gravity of 0.9200 could be carried in such tanks?

    920 tons

  • 2

    A vessel would be referred to as "tender" when the weight of the cargo is .

    concentrated high and the double bottoms are empty

  • 3

    A semisubmersible floating in sea water displaces 717,500 cubic feet. What is the displacement?

    20,500 long tons

  • 4

    A tanker fully loaded with oil pumped out from the stern most tank across. What will be the effect on the draft?

    The forward draft will increase

  • 5

    A tonnage tax is leveled according to the .

    Net Tonnage of vessel

  • 6

    A vessel going from salt water to fresh water would

    Decrease her freeboard

  • 7

    A vessel having a concentration of weight toward the top of the vessel is said to be .

    tender

  • 8

    A vessel should normally behave as if all of its weight is acting downward through the center of gravity and all of its support is acting upward through the .

    center of buoyancy

  • 9

    A vessel that has a concentration of weight toward the top of the vessel is said to be .

    Tender

  • 10

    A vessel's center of gravity is lowered when the .

    tanks are ballasted

  • 11

    Angular motion about the longitudinal axis of a vessel is known as

    roll

  • 12

    Counter Flooding into empty tanks may be what if the cause of sudden severe list or trim is negative initial stability?

    increase list or trim

  • 13

    Displacement refers to the

    number of long tons of water displaced by a vessel afloat

  • 14

    Due to off-center ballast the cause of severe list or trim, counterflooding into empty tanks will .

    Decrease list or trim

  • 15

    Find the Displacement of a vessel if the lightship is 4,547 m/t; FO 134 m/t; DO 33 m/t; FW 40 m/t; Constant 200 m/t; Cargo 11,550 m/t; Remaining Ballast 80 m/t and the Total Moments 18,632.01

    16,854 m/t

  • 16

    For a vessel with no sheer, which of the following will not provide extra buoyancy?

    higher bulwark

  • 17

    How much volume of seawater will increase the displacement by 1 ton?

    35 cuft

  • 18

    If a vessel loses its reserve buoyancy, it will .

    most likely sink

  • 19

    If a vessel rolls to the starboard side, and there are no movable or moving weights onboard, the center of gravity will

    stay in the same position

  • 20

    If the buoyant force on a ship's hull is equal to or greater than the displacement tonnage, the ship will:

    Float

  • 21

    If the cause of severe list, or trim is due to off-center ballast, counterflooding into empty tanks will .

    Decrease list or trim

  • 22

    If the cause of severe list, or trim is due to off-center ballast, counterflooding into empty tanks will .

    decrease list or trim

  • 23

    In the absence of external forces, the center of gravity of a floating vessel is located directly above the .

    geometric center of the displaced volume

  • 24

    In the event of a collision, watertight integrity may be lost if .

    the sounding tube cap from a damaged tank is missing

  • 25

    Increasing the free surface of a confined liquid has the effect of raising the .

    virtual height of the center of gravity

  • 26

    Initial stability of a vessel may be improved by

    all of the answers are correct

  • 27

    Multiplying weight to distance divided by MTC is a formula to find:

    Change in Trim

  • 28

    Negative initial stability if the cause of a sudden severe list, counterflooding into empty tanks may:

    cause the unit to flop to a greater angle

  • 29

    Plugged limber holes can endanger a ships stability by .

    Preventing water from draining to the bilge

  • 30

    Progressive flooding may be indicated by

    a continual worsening of list or trim

  • 31

    Reducing the free surface of a liquid within a tank has the effect of lowering the .

    virtual height of the center of gravity

  • 32

    Repairing damage to the hull at or above the waterline reduces the threat of:

    Continued progressive flooding

  • 33

    Stability is determined principally by the relationship of the center of gravity and the .

    center of buoyancy

  • 34

    Subtracting FSCT from KGT yields

    KG

  • 35

    The abbreviation 'GM' is used to represent the

    metacentric height

  • 36

    The amount of tons required to be loaded or discharged on the tipping center of an even keel ship to increase or decrease her draft by one centimeter is:

    Tons per centimeter immersion

  • 37

    The center of buoyancy is located at the .

    geometric center of the displaced volume

  • 38

    The difference between the height of the center of gravity and the height of the center of metacenter is .

    GM

  • 39

    The effects of free surface on initial stability depend upon the surface area dimensions of the free liquids and the .

    volume of displacement of the MODU

  • 40

    The important stability parameter 'KG' is defined as the .

    height of the center of gravity above the keel

  • 41

    The quality of initial stability is indicated by .

    GM

  • 42

    The reserve buoyancy of a vessel varies directly with changes in the vessel's .

    freeboard

  • 43

    The stability existing after the unintentional flooding of a compartment on a MODU is called .

    damage stability

  • 44

    The stability term for the distance between the center of gravity (G) to the Metacenter (M), when small angle stability applies is known as the

    metacentric height

  • 45

    The tendency of a ship to resist a change in trim is .

    longitudinal stability

  • 46

    The term Deadweight is:

    Cargo carrying capacity of a vessel including water, bunkers and stores

  • 47

    The value of the maximum righting arm is dependent upon the position of the center of buoyancy and the

    vertical location of the center of gravity

  • 48

    The water in which a vessel floats provides vertical upward support. The point through which this support is assumed to act is known as the center of .

    Buoyancy

  • 49

    The weight of the liquid displaced by a vessel floating in sea water is equal to the .

    total weight of the vessel

  • 50

    This is the important stability parameter, KG is defined:

    Height of the center of gravity above the keel

  • 51

    This means storing all cargo for a port in the same area.

    Block Stowage

  • 52

    Those ship's tanks that are particularly important for trimming the ship are the .

    peaks

  • 53

    Transverse oscillating rotation about the longitudinal axis of a vessel is known as .

    rolling

  • 54

    Transverse stability calculations requires the use of

    hydrostatic curves

  • 55

    Under which circumstances may a metacentric height be considered an indication of a vessel's stability?

    Forsmall angle of inclination

  • 56

    Vessel free surface correction was 10,910.Find the Corrected GM if the Displacement was 68,968 m/t; Vertical Moment 746,032 m/t; KM 13.24 M.

    2.26 M

  • 57

    Vessel stability can be adversely affected by

    increasing the free surface effect

  • 58

    What do you call this center if the geometric center of the underwater volume of a floating vessel?

    Buoyanc

  • 59

    What represents the center of gravity?

    G

  • 60

    What will be the rolling period of a vessel if the Breadth was 32 M and the GM 2.26 M?

    17 seconds

  • 61

    What would you do if you wanted to keep the same draft if you came from salt water to fresh water?

    Discharge ballast

  • 62

    When a vessel is inclined, the tendency for it to return to its original position is caused by the .

    movement ofthe center of buoyancy toward the low side of the vessel

  • 63

    When a vessel is inclined, the tendency to return to its original position is caused by the :

    Movement ofthe center of buoyancy

  • 64

    When any tank or compartment is partially filled with a liquid free to move as the ship rolls, the free surface effect is present. This condition will usually

    reduce ship stability

  • 65

    When stability of a vessel is neutral, the value of GM

    is zero

  • 66

    When the height of the metacenter has the same value as the height of the center of gravity, the metacentric height is equal to .

    zero

  • 67

    When the height of the metacenter is greater than the height of the center of gravity, the upright equilibrium position is stable and stability is .

    Positive

  • 68

    Where would you find the draft marks on a vessel?

    Area of waterline near stem and stern

  • 69

    Which abbreviation represents the height of the center of buoyancy?

    KB

  • 70

    Which factor does NOT affect the required freeboard of a cargo vessel?

    Condition oftrim in normal operation

  • 71

    Which location on a ship's structure of the sheering stress are usually the greatest?

    Ship's quarter length points

  • 72

    Which of the following describes a tender vessel?

    Long rolling period

  • 73

    Which of the following will increase the positive stability of your vessel?

    Shifting weights from upper to lower decks

  • 74

    With no environmental forces acting on the vessel, the center of gravity of an inclined vessel is vertically aligned with the .

    Metacenter

  • 75

    With no environmental forces present, the center of gravity of an inclined vessel is vertically aligned with the .

    center of buoyancy

  • 76

    With no environmental forces, the center of gravity of an inclined vessel is vertically aligned with the .

    center of buoyancy

  • 77

    You are loading in a port subject to the tropical loadline mark and bound for a port subject to the winter loadline mark. You will enter the summer zone after steaming four days and you will enter the winter zone after nine days. You will consume 29 tons.

    80.0 inches

  • 78

    You can generally improve the vessel's stability in a hazardous situation by .

    ballasting appropriate port or starboard deep tanks