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Daily Question for Jan 14, 2018

A vertical shift of weight to a position above the vessel's center of gravity will __________.

A. increase reserve buoyancy

B. decrease the righting moments

C. decrease KG

D. increase KM

Comments

  1. UnknownJanuary 14, 2018 at 3:17 PM

    B

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  2. Friends of STABILITY AND TRIM FOR THE SHIP'S OFFICERJanuary 14, 2018 at 6:39 PM

    B is the best answer because an increase in KG will decrease GM and therefore GZ.
    Righting moment = displacement x GZ :

    Also:
    A shift of weight will not affect reserve buoyancy because the freeboards will not change.
    KG will actually Increase.
    KM will remain the same if drafts and freeboards do not change.

    A simple sketch may help you to see this.

    ReplyDelete
  3. UnknownJanuary 22, 2018 at 2:54 AM

    Answer B.

    ReplyDelete

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