Quiz

  1. The proper explanation for metacenter is:
    2. a.The point at which line of action of force meets the normal axis of the body when it is given angular displacement
    b. The intersection of the line passing through the new center of buoyancy and center of gravity.
    c.The point about which the body starts oscillating when it is given small angular displacement
    d.All of the mentioned

  2. The metacentric height is affected by the change in density.
    3. a. True
    b. False

  3. For a completely immersed body, the metacentric height is always zero.
    4. a. True
    b. False

  4. Metacenter always lies below the center of gravity
    5. a. True
    b. False

  5. The principle of floatation of bodies is based on the premise of
    6. a. Metacenter
    b.Newtons first law
    c.Newtons law of viscosity
    d.None of the mentioned

  6. Calculation of the metacentric height of a floating body involves the second moment of area. The axis about which this moment is to be calculated passes through the
    7. a.The top horizontal surface of the body
    b.The bottom horizontal surface of the body
    c.Centre of gravity of the body
    d.Centre of buoyancy

  7. The buoyancy force is
    8. a.Equal to the volume of liquid displaced
    b.The force necessary to maintain an equilibrium of a submerged body
    c.The resultant force acting on a floating body
    d.The resultant force on a body due to the fluid surrounding it

  8. The increase in metacentric height
    1. increases stability
    2. decreases stability
    3. increase comfort for passengers
    4. decreases comfort for passengers
    9. a.I and III
    b.I and IV
    c.II and III
    d.II and IV

  9. A floating body is said to be in a state of stable equilibrium
    10. a.when its metacentric height is zero
    b.when its metacentric height is above the center of gravity
    c.when its metacentric height is below the center of gravity
    d.only when its center of gravity is below its center of buoyancy

  10. Metacentric height for small values of angle of heel is the distance between the
    11. a.center of gravity and center of buoyancy
    b.center of gravity and metacenter
    c.center of buoyancy and metacenter
    d.free surface and center of buoyancy