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SSC JE 2019-20: Bouyancy & Floatation

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Question 1

For floating bodies, how is the metacentric radius defined?

Question 2

The submerged body will be in stable equilibrium if the centre of buoyancy B

Question 3

The metacentric high of a passenger ship is kept lower than that of a naval or a cargo ship because

Question 4

In a vessel a large metacentric height

Question 5

If B is the centre of buoyancy, G is the centre of gravity and M is the metacentre of a floating body, the body will be in stable equilibrium if ________.

Question 6

Which one of the following is condition for stable equilibrium of a floating body?

Question 7

A piece of wood of volume V and specific gravity 0.87 floats on the surface of a liquid of specific gravity 1.31. The portion of the body which is submerged in the liquid will be

Question 8

What is the buoyant force on a spherical body of radius 30 cm in water (take g=9.8 m/s²) __________?

Question 9

Consider the following statements:
1) Increasing the metacentric height of a ship causes increase in the period of rolling.
2) The frequency of pitching can be reduced by adding more loads along the length of a ship below its centre of gravity.
3) A ship has different metacentres in rolling and pitching.
4) Stability can be improved by increasing the width and reducing the draft.
Which of these statements are correct?

Question 10

In an iceberg, 15% of the volume projects above the sea surface. If the specific weight of sea water is 10.5 KN/m³, the specific weight of iceberg in KN/m³ is?

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ESE & GATE ME Fluid Mechanics & Machinery

Oct 21ESE & GATE ME