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Mechanical Engineering Objective Questions { Fluid Mechanics }

99. Metacentric height is the distance between the metacentre and
A.Water surface
B.Centre of pressure
C.Centre of gravity
D.Centre of buoyancy

100. The resultant upward pressure of the fluid on an immersed body due to its tendency to uplift the sub-merged body is called

101. The centre of pressure of a surface subjected to fluid pressure is the point
A.On the surface at which resultant pres- sure acts
B.On the surface at which gravitational force acts
C.At which all hydraulic force k meet'
D.Similar to metacentre

102. Buoyant force is
A.The resultant force acting on a floating body
B.The resultant force on a body due to the fluid surrounding it
C.Equal to the volume of liquid displaced
D.The force necessary to maintain equilibritim of a submerged body

103. The force of buoyancy is dependent on
A.Mass of liquid displaced
B.Viscosity of fluid
C.Surface tension of fluid
D.Depth of immersion

104. The line of action of the buoyant force acts through the
A.Centroid of the volume of fluid vertically above the body
B.Centre of the volume of floating 'body
C.Centre of gravity of any submerged body
D.Centriod of the displaced volume of fluid

105. Centre of buoyancy is the
A.Centroid of the displaced volume of fluid
B.Centre of pressure of displaced volume
C.C.g. of floatingibody
D.Does not exist

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