Virtual Labs

1. The metacentric height of a floating body is?

a: The distance between metacentre and centre of buoyancy. Explanation

Explanation

b: The distance between centre of buoyancy and centre of gravity. Explanation

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c: The distance between metacentre and centre of gravity Explanation

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d: None of the above Explanation

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2. Which of the following is not a term used for equilibrium of floating and submerged bodies?

a: Centre of gravity Explanation

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b: Centre of buoyancy Explanation

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c: Momentum point Explanation

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d: Metacentre Explanation

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3. A piece of metal of specific gravity 3.4 floats in mercury of a specific gravity 13.6. What fraction of its volume is under Mercury?

a: 0.5 Explanation

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b: Full Explanation

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c: 0.25 Explanation

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d: 0.75 Explanation

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4. When a body floating in a liquid is displayed slightly it oscillates about __________.

a: Centre of gravity of body. Explanation

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b: Centre of pressure Explanation

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c: Metacentre Explanation

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d: None of the above Explanation

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5. Which of the following conditions is used to determine the stable equilibrium of all partially submerged floating bodies?

a: Centre of the AN buoyancy must be above the centre of gravity. Explanation

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b: Centre of buoyancy must be below the centre of gravity Explanation

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c: Metacentre must be at the higher level than the centre of gravity Explanation

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d: Metalcentre must be at a lower level than the centre of gravity Explanation

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6. A body of specific weight W1 floats on a liquid of specific weight W2? Then the ratio of the volume of the object above the liquid to its volume is

a: (W2 - W1)/W2. Explanation

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b: W2/(W2 - W1) Explanation

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c: (W2 - W1 )/ W1 Explanation

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d: W1/( W2- W1) Explanation

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7. A piece of metal of specific gravity 7 floats in Mercury of a specific gravity 13.6. What fraction of its volume is under Mercury?

a: 0.5 Explanation

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b: 0.4 Explanation

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c: 0.515 Explanation

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d: 0.2 Explanation

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8. Metacentric height is the distance between

a: Water surface and centre of pressure Explanation

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b: Meta centre and centre of gravity Explanation

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c: Metacentre and centre of buoyancy. Explanation

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d: Metacentre and water surface Explanation

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For the stability of a floating body the

a: Centre of buoyancy must coincide with the centre of gravity Explanation

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b: Centre of buoyancy must be above the centre of gravity Explanation

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c: Centre of gravity must be above the centre of buoyancy Explanation

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d: Metacentre must be above the centre of gravity Explanation

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Determination of metacentric height