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The metacentric height of a passenger ship is kept lower than that of a naval or a cargo ship because
- a)Apparent weight will increase
- b)Otherwise it will be in neutral equilibrium
- c)It will decrease the frequency of rolling
- d)Otherwise it will sink and be totally immersed
Correct answer is option 'C'. Can you explain this answer?
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The metacentric height of a passenger ship is kept lower than that of ...
Ans. (c)
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The metacentric height of a passenger ship is kept lower than that of ...
Explanation:
Metacentric height (GM) is the distance between the metacenter (M) and the center of gravity (G) of a floating object. It is an important parameter in determining the stability of a ship.
The metacentric height of a ship depends on various factors like the shape and size of the ship, the weight distribution, and the center of gravity of the ship. A higher metacentric height implies greater stability but also increases the frequency of rolling.
The metacentric height of a passenger ship is kept lower than that of a naval or a cargo ship because:
Decrease the frequency of rolling: Passenger ships are designed for comfort and safety of passengers, and hence a lower metacentric height is preferred. This is because a higher metacentric height increases the frequency of rolling, which can cause discomfort and even seasickness to passengers. A lower metacentric height reduces the frequency of rolling, making the ship more comfortable for passengers.
Neutral equilibrium: A higher metacentric height can also make the ship unstable and cause it to capsize in extreme weather conditions. A lower metacentric height ensures that the ship is in a state of neutral equilibrium, where it is stable but not excessively so.
Apparent weight will increase: A higher metacentric height can also increase the apparent weight of the ship, causing it to sink deeper into the water. This can lead to higher drag and increased fuel consumption, making the ship less efficient.
Conclusion:
Thus, a lower metacentric height is preferred for passenger ships to ensure comfort and safety of passengers, while naval and cargo ships can have a higher metacentric height to ensure stability and carrying capacity.
Metacentric height (GM) is the distance between the metacenter (M) and the center of gravity (G) of a floating object. It is an important parameter in determining the stability of a ship.
The metacentric height of a ship depends on various factors like the shape and size of the ship, the weight distribution, and the center of gravity of the ship. A higher metacentric height implies greater stability but also increases the frequency of rolling.
The metacentric height of a passenger ship is kept lower than that of a naval or a cargo ship because:
Decrease the frequency of rolling: Passenger ships are designed for comfort and safety of passengers, and hence a lower metacentric height is preferred. This is because a higher metacentric height increases the frequency of rolling, which can cause discomfort and even seasickness to passengers. A lower metacentric height reduces the frequency of rolling, making the ship more comfortable for passengers.
Neutral equilibrium: A higher metacentric height can also make the ship unstable and cause it to capsize in extreme weather conditions. A lower metacentric height ensures that the ship is in a state of neutral equilibrium, where it is stable but not excessively so.
Apparent weight will increase: A higher metacentric height can also increase the apparent weight of the ship, causing it to sink deeper into the water. This can lead to higher drag and increased fuel consumption, making the ship less efficient.
Conclusion:
Thus, a lower metacentric height is preferred for passenger ships to ensure comfort and safety of passengers, while naval and cargo ships can have a higher metacentric height to ensure stability and carrying capacity.
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The metacentric height of a passenger ship is kept lower than that of a naval or a cargo ship becausea)Apparent weight will increaseb)Otherwise it will be in neutral equilibriumc)It will decrease the frequency of rollingd)Otherwise it will sink and be totally immersedCorrect answer is option 'C'. Can you explain this answer?
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