Question 2063Deck Safety70% to pass
A virtual rise in the center of gravity may be caused by _______________.
AI Explanation
The correct answer is C) using an on board crane to lift a freely swinging heavy object.
When a heavy object is lifted by a crane, the object's center of gravity rises above its original position, causing a virtual rise in the vessel's overall center of gravity. This can negatively impact the vessel's stability and increase the risk of capsizing.
The other options are incorrect because: A) Transferring ballast between tanks does not necessarily cause a rise in the center of gravity. B) Filling a partially filled tank may cause the center of gravity to rise or fall, depending on the tank's location and the amount of liquid added. D) Emptying a partially filled tank would not cause a virtual rise in the center of gravity.
Related Questions
#2061 Which technique could be used to give a more comfortable roll to a stiff vessel? #2062 What will NOT decrease the stability of a vessel? #2064 Your vessel is securely moored and commencing to load cargo. What effect does loading cargo have on the vessel's vertical center of gravity? #2065 Which of the following formulas is an acceptable method to calculate the vertical shift of the vessel's center of gravity? #2066 You have completed stability calculations for your vessel prior to getting underway. Your vessel's GM is small but positive. Which of the following is true?