Q1. Metacentric height is the distance between the metacentre and
(A) water surface
(B) center of pressure
(C) center of gravity
(D) center of buoyancy

Q2. The resultant upward pressure of the fluid on an immersed body due to its tendency to uplift the sub-merged body is called
(A) upthrust
(B) reaction
(C) buoyancy
(D) metacentre

Q3. The center 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 acis
(C) at which all hydraulic forces meet
(D) similar to metacentre

Q4. 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 dis-placed
(D) the force necessary to maintain equilibrium of a submerged body

Q5. 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) center of gravity of any submerged body
(D) centriod of the displaced volume of fluid

Q6. Center of buoyancy is the
(A) centroid of the displaced volume of fluid
(B) center of pressure of displaced volume
(C) g. of floating ‘body
(D) does not exist

Q7. A body floats in stable equilibrium
(A) when its meatcentric height is zero
(B) when the metancentre is above g.
(C) when its g. is below it’s center of buoyancy
(D) metacentre has nothing to do with position of g. for determining stability

Q8. The total pressure force on a plane area is equal to the area multiplied by the intensity of pressure at the centriod, if
(A) the area is horizontal
(B) the area is vertical
(C) the area is inclined
(D) All of these

Q9. Metacentre is the point of intersection of
(A) vertical upward force through g. of body and center line of body
(B) buoyant force and the center line of body
(C) mid point between g. and center of buoyancy
(D) All of these

Q10. Choose the incorrect statement
(A) The horizontal component of the hydro-static force on any surface is equal to the normal force on the vertical projection of the surface
(B) The horizontal component acts through the center of pressure for the vertical projection
(C) The vertical component of the hydrostatic force on any surface is equal to the weight of the volume of the liquid above the area
(D) he vertical component passes through the center of pressure of the volume

Q11. For a body floating in a liquid the normal pressure exerted by the liquid acts at
(A) bottom surface of the body
(B) center of the body
(C) metacentre
(D) all points on the surface of the body

Q12. According to the principle of buoyancy a body totally or partially immersed in a fluid will be lifted up by a force equal to
(A) the weight of the body
(B) more than the weight of the body
(C) less than the weight of the body
(D) weight of the fluid displaced by the body

Q13. When a body floating in a liquid, is displaced slightly, it oscillates about
(A) center of pressure
(B) center of buoyancy
(C) metacentre
(D) liquid surfac

Q14. Buoyant force is
(A) resultant force acting on a floating body
(B) equal to the volume of liquid displaced
(C) force necessary to keep a body in equilibrium
(D) the resultant force on a body due to the fluid surrounding it

Q15. Ratio of inertia force to surface Jension is known as
(A) Mach number
(B) Froude number
(C) Reynold’s number
(D) Weber’s number

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