Civil Engineering MCQAE Level Civil Engineering
For a floating body to be in stable equilibrium, the metacentric height (GM) must be:
Fluid MechanicsMetacentric HeightMEDIUM
Choose the correct answer
A
Negative
B
Zero
C
Positive
D
Equal to the draft
Correct Answer
C. Positive
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GM = BM - BG, where BM = I/V (second moment of waterplane area / displaced volume) and BG = distance between centre of buoyancy B and centre of gravity G. For stability, M must be above G: GM > 0.
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