C13 - Maintain seaworthiness of the ship

100問 • 2年前

問題一覧

1. What is the curvature of the deck in a transverse direction?

•Camber

2. Rigthing arm is a measure use to evaluate vessel's stabilty. It is the horizontal distance between center of gravity and the center of bouyancy. What will happen if the center of bouyancy has shifted further outboard than the center of bouyancy?

•The rigthing arm is positive creating a positive stabilty.

3. What will happen to the free surface effect if you increase the volume of partially full liquid tank?

•The free surface effect decreases.

4. What is the true measure of a vessel's stability at all angles of inclination?

•Righting moment

5. What is the hull structural members that run from bow to stern?

•Longitudinal

6. What do you call a type of hatch cover that consist of a single or multi-paneled leaves operated by either a wire rope on the ship's gear or by an electro hydraulic system?

•Hinged and folding hatch cover

7. What is the transverse curvature of the deck?

•Camber

8. Which statement is true about the metacentric radius?

•The distance between B and metacentre is dependingt on the displacement and the moment of the inertia of waterplane.

9. What is the ratio of volume of displacement to a block having lenght, breadth and draft of vessel?

•Block Coefficient

10. What will happen if the weight of the floating ship is greater than the weight of equal volume of water displace by the ship?

•The ship will sink.

11. What do you call the volume of all watertight enclosed spaces above water line?

•Reserved bouyancy

12. What will exist in the stabilty of your vessel after unintentional flooding happen?

•Damage stability

13. Your vessel lenght is 72 meters and breadth of 10.5 meters is floating in salt water at a draft of 2.4 meters. If your vessel block coefficient of fineness is 0.71, what will be your vessel displacement in tonnes?

•1320.43 tonnes

14. Which statement is correct regarding the purpose of the bilge keel of the vessel?

•To reduces the rolling of the vessel.

15. What do you call the percentage of a flooded compartment that can be occupied by water if being damaged?

•Permeability

16. What is the greatest breadth of the ship measured betwen the inside edges of the shell plating?

•Moulded breadth

17. What is the ability of an object to float?

•Bouyancy

18. What are the vertical flat plates running transversely that connect the vertical keel to the margin plates?

•Floors

19. What do you call the underwater narrowing part of a ship's hull forward of the middle body section?

•Entrance

20. Which of the following is not exempted when calculating gross tonnage?

•Passenger cabin

21. What is the part of windlass which physically engages the chain during hauling or paying out?

•Wildcat

22. When the ship enters the dry dock, her centerline is first brought in line with the centerline of the keel blocks by using a combination of plum lines and what other method?

•Leica theodolite

23. What is usually the effect on G when the ship is damage?

•It is unchange if no loss of cargo or liquid on tanks.

24. What is the point in which your vessel center of gravity may rise and still permit the vessel to have positive stability?

•Metacenter

25. What is the enclosed portion of the vessel above the highest watertight deck?

•Superstructure

26. What is the void space between two bulkheads?

•Cofferdam

27. What is the condition of the vessel if a stress called compression is being placed on the sheer strakes?

•Sagging

28. What information you will get when you divided the density of a substance by the density of the water?

•You will get the specific gravity of the substance.

29. Which is the length between bulkhead on a ship in order to ensure that it will remain float if one or more compartments are flooded?

•Permissible length

30. What is the horizontal line situated amidships on both sides of the vessel the measurement of which is 300mm by 25mm wide?

•Deck line

31. Which statement is true regarding the fitting of bilge keel on the vessel?

•It is fiited to reduce the rolling of the vessel.

32. What is the vertical plates fitted transversely to the bottom shell of a steel vessel?

•Floors

33. Your vessel is stationary and in hogging condition. What kind of stress is placed on the maindeck?

•Tension

34. What does it indicate when your vessel rolls slowly and slugishly?

•It has a poor stability

35. What is the main structural member or backbone of a ship running longitudinal along centerline of bottom?

•Keel

36. Your vessel had a leak, what it will cause If a weigth is added to your vessel ?

•It will reduce reserve bouyancy

37. What is the collective term for transverse bulkhead required for subdivision of the hull into watertight compartment?

•Watertight bulkhead

38. If the vertical center of gravity (VCG) of your ship rises, what will happen to the rigthing arm(GZ) for the various angles of inclination?

•It will decrease.

39. What is the depth from waterline to the vessel bottom?

•Draft

40. Which statement is true about coaming?

•It is the vertical structure of a hatch or skylight.

41. What is the highest point of the transverse bulkheads at which a watertight deck is situated?

•Bulkhead deck

42. What would be the effect if you add weight to your vessel?

•It will reduce your vessel reserve bouyancy.

43. Which of the following statement is an indication of progressive flooding?

•A continual worsening of list or trim.

44. With reference to freeboard categories, Type A ships are those designed specifically for the carriage of what kind of commodity?

•Liquid cargoes in bulk

45. What is the holes in the bulkwark that allow water to drain into the sea?

•Freeing ports

46. What is a situation on board a vessel that may cause a virtual rise in the center of gravity?

•Consuming fuel from a pressed up tank

47. What is the rise of the deck from the side of the vessel to the center line?

•Camber

48. What part of the vessel is the stem?

•The foremost part of the vessel.

49. What is the reason why a bulk carrier is divided into compartment by watertight bulkhead?

•To limit the floodable length along the longitudinal lenght of the vessel.

50. Your vessel mean draft is 2.6 meters. You are required to load to a draft of 3.2 meters. How much cargo you can load if your TPC is 1.8 tons?

•108 tonnes

51. How do hatch cover made weathertigth?

•A gasket evenly resting against compression bar.

52. Which statement is correct regarding the gypsyhead?

•Spool-shape drum fitted on a winch.

53. Which statement is correct regarding the function of the bilge keel?

•It reduces the rolling of the vessel.

54. What is the space provided in the double bottom of some vessels running from forward of the engine room bulkhead to the collision bulkhead and utilzed to carry the double bottom piping?

•Duck keel

55. When your vessel has a negative metacentric height. Which oif the following statement is true?

•It should be immediately corrected.

56. The vessel's GM is small but positive prior to getting underway. Which of the following is true in stability condition?

•The vessel will possess a long rolling period

57. In rough weather, the free surface effect resulting from slack tanks in a vessel will cause a virtual:

•Rise of G

58. What data is used in obtaining the figure by dividing the total volume of the ship in cubic feet after omission of exempted spaces by one hundred?

•Gross tonnage of the ship.

59. What is the fixed longitudinal plates fitted at the turn of the bilge so that their drag dampen roll amplitudes?

•Bilge keel

60. What do you call the uppermost continuous deck which is required to have a permanent watertight closure and is exposed to weather and the sea?

•Freeboard deck

61. Vessel has been damaged and is partially flooded. What is the first step to be taken to save the vessel?

•Establish flooding boundaries and prevent further spread of flood water

62. What is the inner bottom of a double bottom tank?

•Tank top

63. What is the enclosed portion of the vessel below the highest watertight deck that run continuously from to the stern?

•Hull

64. Where can you find ship's broad profile with all data relating to the capacity of cargo spaces, tanks, bunkers, storeroom location of each center of gravity?

•Capacity Plan

65. Which term indicates the measurement that forms between the ship's bottom and the horizontal plane on either side of the keel?

•Deadrise gonia

66. Which statement describe the transverse metacenter?

•The point to which G may rise and still permit the vessel to posses positive stability

67. What is the foremost main transverse watertight bulkhead?

•Collision bulkhead

68. What is the uppermost continuous deck with permanent means for closiing all opening?

•Freeboard deck

69. What is the fitting used to secure a watertight door

•Dogs

70. What is the distance between the bottom of the hull and waterline?

•Draft

71. What is the device that force the watertight door against the frame

•Dogs

72. What condition is to be attained when additional weight is added on board in an already loaded vessel?

•Reduce reserve buoyancy

73. What is the deck fitting used to secure line or rope consisting of single body with protruding horns?

•Cleats

74. What is the point in which the ship pivots around when heeling at small angle?

•Metacenter

75. What is the term refers to the transverse curvature of the deck?

•Camber

76. What is the purpose of an inclining experiment?

•Determine the location of the center of gravity in lightweight condition

77. What is the ratio of the underwater volume of ship to the volume of rectangular block having the same overall length, breadth and depth?

•Block Coefficient

78. Which statement is true concerning the loss of bouyancy method?

•The method is suitable for computer programming.

79. What is the abbreviation refers to the horizontal distance between the forward most and the after most point on a vessel waterline?

•LWL

80. What is the principal danger from a liquid in a half full tank?

•Loss of stability from the surface effect.

81. What is the device use to be fitted between a hatch cover panel and coaming which foreces the cross joint together?

•Battening device

82. Which statement is not true about the design of the boulbous bow?

•It is design to reduce collision impact if a vessel hit an object.

83. What is the principal danger of a slack liquid in a tank on board a vessel?

•Shifting liquid will result in loss of stability

84. What will be the effect when cargo is shifted from lower hold to maindeck?

•The center of gravity will move upward.

85. Which statement is true regarding the object of watertight subdivision of a ship?

•The safety of the ship if hull is damage below the waterline, it confine any ingress of water to the immediate vicinity.

86. What is the purpose of flare of the bow?

•It promotes deck dryness.

87. What kind of bulkhead subdivide the ship into independent compartments in order to limit the extent of flooding?

•Transversal watertight

88. Which statement is not correct regarding the use of double bottom tank?

•Additional space for loading cargo.

89. Among the movement of the liquids, what is the most detrimental effect on initial stability?

•Flowing in and out of a holed wing tank

90. Heave is motion along which axis?

•The vessels vertical axis

91. What is thye general term applied to any deck opening leading to the cargo hold?

•Cargo Hatch

92. Which of the following statement do not describe Archimedes' principle?

•The force exerted by the mass when it is subject to the Earth's gravitational attraction is the weight of the body or substance.

93. What is the term used when there is a change in the thickness of the section of a plating materials in ship's construction?

•Discontinuities

94. What is the term applied to the bottom shell plating in a double bottom ship?

•Outer bottom

95. What is the used of the duck keel?

•It is usually use for carrying pipe work.

96. What does the regulation require regarding bulkhead?

•Bulkhead is water tight from the bottom of the ship up to the bulkhead deck.

97. What is the weathertight entrance leading from a ship deck to space below?

•Companion way

98. Where do signs of racking stresses generally appear on the vessel?

•At the junction of the frames with the beams and floors

99. What will happen if the weight of a floating object is greater than the weight of equal volume of water displaced by the object?

•The object will sink

100

100. What is the verticcal plating immediately above the upper edge of the ship's side surrounding the exposed deck(s)?

•Bulwark

C1 - Plan and conduct a passage and determine position (200)

Joedz Padin · 100問 · 2年前

C1 - Plan and conduct a passage and determine position (200)