Which hull form parameter primarily influences a ship’s resistance and
seakeeping characteristics?
A) Beam
B) Draft
C) Block coefficient
D) Length overall
Answer: C
Explanation: The block coefficient measures how much of the hull’s volume
is filled relative to its length, breadth, and depth, directly affecting resistance
and seakeeping.
In hydrostatics, the principle that explains why a floating object displaces a
weight of fluid equal to its own weight is known as:
A) Archimedes' principle
B) Bernoulli's principle
C) Pascal's law
D) Newton's third law
Answer: A
Explanation: Archimedes' principle states that a body submerged in a fluid
experiences an upward buoyant force equal to the weight of the displaced
fluid.
, SEE1MV Marine Exam
Which factor most significantly affects a ship’s trim when loaded?
A) Distribution of cargo
B) Wind direction
C) Water temperature
D) Propeller pitch
Answer: A
Explanation: Cargo distribution impacts the longitudinal balance of the ship,
influencing its trim.
Hydrostatic curves are used primarily to determine:
A) Structural strength of the hull
B) Stability characteristics at different heel angles
C) Displacement and buoyancy at various drafts
D) Propeller efficiency
Answer: C
Explanation: Hydrostatic curves illustrate how displacement and buoyancy
vary with drafts, aiding stability and loading calculations.
Longitudinal stability of a ship is mainly influenced by:
A) Center of gravity position
B) Beam of the ship
C) Wind load
, SEE1MV Marine Exam
D) Hull surface roughness
Answer: A
Explanation: The position of the center of gravity relative to the center of
buoyancy affects the ship's longitudinal stability.
The free surface effect causes stability to:
A) Increase
B) Remain unaffected
C) Decrease
D) Vary unpredictably
Answer: C
Explanation: Free surface liquids shift their center of gravity as the ship rolls,
reducing stability.
An inclining experiment is performed to determine:
A) The ship's displacement
B) The location of the center of gravity
C) The hull's structural integrity
D) The propeller’s cavitation characteristics
Answer: B
Explanation: Inclining experiments help find the ship’s displacement and the
position of its center of gravity.
, SEE1MV Marine Exam
Damage stability primarily aims to assess:
A) Resistance after hull breach
B) Ability to remain afloat and stable after compartment flooding
C) Cargo securing procedures
D) Propulsion efficiency under damage conditions
Answer: B
Explanation: Damage stability evaluates whether the ship can remain afloat
and stable after damage causes flooding.
Load lines on ships are regulated to ensure:
A) Proper cargo distribution
B) Adequate safety margins against overloading
C) Optimal fuel consumption
D) Minimized hull corrosion
Answer: B
Explanation: Load lines help prevent overloading, ensuring the ship maintains
sufficient freeboard for safety.
Which material is most commonly used in modern shipbuilding for structural
plates?
A) Cast iron