Naval Architecture – MEO CLASS 4 WRITTEN PAPER

91. M/C space opening are to have _____door with ______ position.
    1. watertight, 450mm
    2. watertight, 350mm
    3. water tight, 600mm
    4. Weather tight, 600mm.

ANS.: C

92. The ship’s model estimates the
    1. Hull Frictional Resistance
    2. Hull Wave Making Resistance
    3. All of above
    4. None of above

ANS.: B

93. The surface of each blade of propeller when viewed from aft is known as the __________
    1. Back
    2. Leading edge
    3. Trailing edge
    4. Face

ANS.: D

95. In a shell expansion plan, plate D5 refers to:
    1. Fourth plate from aft and fifth strake from keel
    2. Fifth plate from aft and fourth strake from the keel
    3. Fourth plate from forward and fifth strake from keel
    4. Fifth plate from forward and fourth strake from keel

ANS.: B

96. Which component in the given Figure is a bulkhead? What type of bulkhead is it?
    1. 7, Plate Type
    2. 5, Corrugated Type
    3. 7, Corrugated Type
    4. 5, Box type

ANS.: B

97. Identify the part no. 3 of the given figure:
    1. Upper deck
    2. Tween deck
    3. Deck transverse
    4. Deck girder

ANS.: C

98. As per conditions of assignments, the height of air pipe openings must be ________ on the freeboard deck
    1. 380 mm
    2. 450 mm
    3. 600 mm
    4. 760 mm

ANS.: D

100. GM of ship will change with
     1. Shifting of weight longitudinally
     2. Shifting of weight transversely
     3. Shifting of weight vertically
     4. All of the above

ANS.: D

101. Modern medium to large size single side skin bulk carriers have long framing within double bottoms, within hopper tanks & decks while side shell is transversely framed. Why?

Ans: This is required for transverse strength.

102. Minimum no. of intercostal girder in transversely framed double bottom of ship whose breadth is more than 10m but less than 20m.
     1. 1
     2. 2
     3. 3
     4. 4

ANS.: B

104. Double bottom compartment test
     1. Hose test
     2. By filling them to maximum level
     3. With a head of water upto the top of the air pipe
     4. None

ANS.: C

105. The minimum possible number of transverse watertight bulkheads in ships with machinery spaces amidships would b:
     1. 4
     2. 3
     3. 2
     4. 5

ANS.: A

106. Left hand propeller on those turn_____________ when producing ahead thrust

a) Viewed from aft clock wise
b) Viewed aft anti clock wise
c) Viewed fwd anti clock wise
d) none of the above

ANS.: B

107.  Bulkheads are intercostals between decks

A.TRUE

B.FALSE

ANS.: B

108. Maximum Transverse Spacing in DOUBLE BOTTOM SPACE?
     1. 5 m
     2. 3 m
     3. 7 m
     4. 8 m

ANS.: B

109. Requirement for LOAD LINE REGULATION is known as …
     1. Condition requirement
     2. Minimum freeboard
     3. Minimum load water Line

ANS.: B

110. Most modern day rudders are
     1. Unbalanced,
     2. Semi balanced,
     3. Balanced, balanced
     4. Semi balanced

ANS.: B

111. Displacement of a ship is calculated by
     1. Light weight of the ship plus known quantity of cargo carried,
     2. Weighting the ship actually,
     3. By reading forward aft midship draughts and using hydrostatic tables,
     4. Inclining experiments

ANS.: A

112. As per condition of assignments the machinery space openings are to have …………. Doors with minimum still heights of ……. In position to ……………..
     1. Weather tight 450mm
     2. Watertight 380mm
     3. Weather tight 380mm
     4. Water tight 450mm.

ANS.: B

113. When a weight is moved in transverse direction it may cause l
     1. Loll
     2. Heel
     3. Trim
     4. List

ANS.: D

114. Sheer Lines of a vessel is defined as
     1. Lines of horizontal sections along the longitudinal axis
     2. Lines of vertical sections along the longitudinal axis
     3. Lines of vertical sections at various stations
     4. Lines of horizontal sections at various drafts

ANS.: A

115. Identify part no. 8 in the given figure :
     1. Margin plate
     2. Shedder plate
     3. Sloping plate of lower stool
     4. Gusset plate

ANS.: B

116. The depth of the ship measured from the underside of the keel to the top of the deck beam of the uppermost constant deck amid ship is known as ___________________

Ans.: extreme depth.

117.  In case of merchant ships a combinatory control means option

1. Ships speed is controlled by cpp and constant speed engine
2. Ship speed is controlled by fpp and variable speed engine
3. Ship speeds controlled by cpp and variable speed engine
4. Ship speeds controlled by cpp and variable speed reversible engine

ANS.: C

118. In longitudinally framed double bottom
     1. Frame spaces between the solid floors are left unsupported
     2. Fitted with bracket floor
     3. Fitted with brackets at tank sides and centre girder
     4. None

ANS.: C

119. As per condition of assignments option
     1. All discharge from above or below the free board deck from enclosed spaces use
     2. To be led direct overboard
     3. To be led to engine room bilge tank
     4. To have an elision non return valve

ANS.: D

120. Type A vessel assigned minimum free board because
     1. They carry only liquid cargoes and in case of damage more liquid will leak out it the sea than the amount of water entering the cargo space
     2. They are constructed with high tensile steels
     3. It being associated by small water tight hatches that’s giving high integrity free board deck cuts excellent subdivision of cargo spaces
     4. They had to lose stability if lesser free board is assigned to them.

ANS.:  C