Naval Architecture – MEO CLASS 4 WRITTEN PAPER

61. Horizontal web plates which support the part of stern formed by radiused plates, between deck, is known as

1. Panting stringer
2. Breast stringer
3. Breast hook
4. Breast stiffener

ANS.: C

62. Bulkhead forming parts of the tanks on vessel are stiffened to withstands

1. deck load from above
2. dynamic forces while afloat
3. hydrostatic pressure
4. overpressure

ANS.: C

63. Curves of immersed cross-sectional area of a ship, plotted against draught for each transverse section , are known as

1. Cross curves of Stability
2. Displacement Curves
3. Hydrostatic Curves
4. Bonjean Curves

ANS.: D

64. In longitudinally framed double bottoms, in frame spaces where there are no solid floors, the brackets on tank sides and centre girder should not be more than ____apart.

1. 2.5m
2. 3.7m
3. 3.8m
4. 1.25m

ANS.: D

65. Modern medium size single size skin bulk carrier are provided with _____ framing within double bottom, __________ framing within hopper tanks _________ framing on the side shell within the cargo hold

                A.  L,L,L

B. T,T,L

C. L,T,L

D. L,L,T

ANS.: D

65. Relationship between C_P, C_B, C_M is
    1. C-p=c-B*C-M
    2. C-M=c-p*c-B
    3. C-m*c-p*c-B=1
    4. C_B=c-p*c-M

ANS.: D

68. Plating on bulk heads are generally fitted _______ for better graduation of thickness
    1. Vertically in bulk heads
    2. horizontally in bulk heads
    3. vertically in transverse bulk head only
    4. Horizontally in transverse bulk head only

ANS.: B

69. Define relationship between permeability, relative density, stowage factor of cargo.
    1. 1-(SF*RD)
    2. 1-1/(SF*RD)
    3.  (SF*RD)-1
    4.  (SF*RD)

ANS.: A

70. Position 1, position 2, ventilation no need of min. height gasket
    1. 4.5, 2.0
    2. 4, 2.3
    3. 3.5, 2.3
    4. 4.5, 2.5

ANS.: D

71. Velocity of advancement is defined as
    1. velocity of ship
    2. velocity of advance condition
    3. Axial velocity of propeller w.r.t adjoining water flow
    4. Axial velocity of propeller w.r.t fixed object

ANS.: C

72. Type A vessel classification based on assignment of
    1. Min draught
    2. Min. depth
    3. min. free board
    4. min. freeboard length

ANS.: D

73. Intercostals girder that vessel need to fitted transversely double bottom spaces whose breadth exceeds 20m
    1. 2port-2strbd
    2. 3p-3s
    3. 1p-1s
    4. none

ANS.: A

74. Better freeing arrangement on tanker decks inform open rails for 50% length
    1. To ensure no S.W gets on deck
    2. Because of tanker has less freeboard
    3. A &B
    4. None

ANS.: B

75. Tabular freeboard is based on what parameter (add depth for multi choice)
    1. Draught
    2. Length
    3. depth
    4. any

ANS.: B

76. Shell expansion plan, ____________________

Ans.:  D5 plate

77. Most commonly used stern ____________________

Ans.:  transom stern

78. As per rules, all ships above 120 m length should have ____ in double bottoms
    1. transverse frame
    2. combination
    3. longitudinal
    4. any

ANS.: C

79. Hull plating strakes are generally numbered as
    1. lettered from keel upwards and numbered from aft to forward
    2. numbered from keel and lettered from aft forward
    3. lettered from keel and numbered from forward to aft
    4. numbered from keel and lettered from forward to aft

ANS.: A

80. Deck plating strakes are generally numbered as
    1. lettered from centre line to outward and numbered from aft to forward
    2. numbered from keel and lettered from aft forward
    3. lettered from keel and numbered from forward to aft
    4. numbered from keel and lettered from forward to aft

ANS.: A

81. Pounding arrangements are usually fitted up to —— percentage of ships length abaft stem.
    1. 10
    2. 20
    3. 15
    4. 25

ANS.: D

82. Position of centre of buoyancy of vessel is at
    1. centroid of the full cargo space
    2. centriod of underwater hull
    3. centroid of all masses
    4. centroid of hull where buoyancy is maximum

ANS.: B

83. Water tightness and structural integrity of dry peaks are tested by
    1. Hose test
    2. By filling them with water up to water line
    3. Fill water up to load water line
    4. fill water up to 2.44mts above tank crown or max head which can come on them, whichever is higher

ANS.: B

84. The greatest breadth of the ship measure to the inside of the shell plating is known as
    1. breadth extreme
    2. breadth absolute
    3. breadth moulded
    4. breadth perpendiculars

ANS.: C

85. In longitudinal corrugated bulkheads, corrugations are ………….
    1. either horizontal or vertical
    2. only horizontal
    3. only vertical
    4. neither horizontal nor vertical

ANS.: B

86. In transverse corrugated bulkheads, corrugations are ………….
    1. either horizontal or vertical
    2. only horizontal
    3. only vertical
    4. neither horizontal nor vertical

ANS.: A

87. Most modern type rudders are,
    1. A single plate type
    2. double plate type
    3. single plate streamlined type
    4. none

ANS.: C

88. Hull model relation is based
    1. Reynolds no of both hull and model are equal.
    2. frauds no of both hull and model are equal
    3. Rey and fraud no of both hull and model are equal
    4. none

ANS.: B

89. The purpose providing tumble home is
    1. improve the appearance of ship
    2. help drain of water from deck easily
    3. reduce the volume of water coming on deck
    4. helps drain tanks to bilges

ANS.: A

90. Collision bulkhead plate thickness
    1. 4-5
    2. 4-6
    3. 5-6
    4. 6-7

ANS.: C