The two important forces for a floating body are___________________?

Related Mcqs:

1. The resultant upward pressure of a fluid on a floating body is equal to the weight of the fluid displaced by the body. This definition is according to____________________?

   A. Buoyancy
   B. Equilibrium of a floating body
   C. Archimedes’ principle
   D. Bernoulli’s theorem
   E. Metacentric principle

2. The conditions for the stable equilibrium of a floating body are_______________?

   A. the meta-center should lie above the center of gravity
   B. the center of buoyancy and the center of gravity must lie on the same vertical line
   C. a righting couple should be formed
   D. all the above are correct
   E. none of the above is correct

3. For a body floating in a liquid the normal pressure exerted by the liquid acts at _________________?

   A. bottom surface of the body
   B. e.g. of the body
   C. metacentre
   D. all points on the surface of the body
   E. all of the above

4. When a body floating in a liquid, is displaced slightly, it oscillates about ___________________?

   A. e.g. of body
   B. center of pressure
   C. center of buoyancy
   D. metacentre
   E. liquid surface

5. For a floating body to be in stable equilibrium, its metacentre should be_________________ ?

   A. below the center of gravity
   B. below the center of buoyancy
   C. above the center of buoyancy
   D. between e.g. and center of pressure
   E. above the center of gravity

6. For a floating body to be in equilibrium __________________?

   A. meta center should be above e.g.
   B. center of buoyancy and e.g. must lie on same vertical plane
   C. a righting couple should be formed
   D. all of the above
   E. none of the above

7. The time oscillation of a floating body with increase in metacentric height will be________________?

   A. same
   B. higher
   C. lower
   D. lower/higher depending on weight of body
   E. unpredictable

8. A liquid would wet the solid, if adhesion forces as compared to cohesion forces are_________________?

   A. less
   B. more
   C. equal
   D. less at low temperature and more at high temperature
   E. there is no such criterion

9. A metal with specific gravity of o floating in a fluid of same specific gravity a will___________________?

   A. sink to bottom
   B. float over fluid
   C. partly immersed
   D. be fully immersed with top surface at fluid surface
   E. none of the above

10. 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
    E. center of pressure