# Mcq on buoyancy and floatation

## The Fluid mechanics is important subject for all Competitive exams, so let's learn about Concept of Mcq on buoyancy and floatation, helps to modernize our society.So keeping these things in mind, Lets learn about the topic of Mcq on buoyancy and floatation. (adsbygoogle = window.adsbygoogle || []).push({}); Mcq on buoyancy and floatation

# Objective questions:-

1. A stone having weights 650 N in the air and 275 N in the water. Find its specific gravity.
a) 1.73
b) 2.45
c) 3.46
d) 0.865

2. Submarines working uses principle of ‘neutral buoyancy’ to go in the water.
a) True
b) False

3. The buoyant force acting on the air-ship as it rises in the air will be...
a) Buoyant force is increases
b) Buoyant force is decreases
c) Buoyant force is remains constant
d) Buoyant force first increases then decrease

4. The buoyancy force is equal to the weight of the fluid displaced by the body.
A. True
B. False

5. As a balloon rises in the air its volume increases, and at the end it having a stable height and can't rise any further.
a) True
b) False

6. The denser object is float on the less dense fluid by which method.
a) By changing the shape of object
b) By altering the forces acting on the object
c) By changing the force on the object
d) None of the above

7. The distance between G and metacentric M of the floating body, is called as Metacentric Height.
A. True
B. False

8. The principal cause of buoyant force on the body submerged partially or fully in the fluid is force equal in magnitude to the weight of the volume of displaced fluid.
A. True
B. False

9. A stone having weight of 450 N in the air and 200 N in water. Find the volume of stone.
a) 0.025 m3
b) 0.05 m3
c) 0.075 m3
d) None of the above

10. The resultant force exerted on the submerged or floating body in static liquid is called as by force.
A. True
B. False

11. The stability of a dam is checked for...
A. Tension at the base
B. Sliding of the dam
C. Overturning of the dam
D. All of the above

12. When a body is placed over a liquid it will sink if the gravitational force is more than The thrust of the liquid.
A. True
B. False

13. The centre of gravity of the volume of a liquid is displaced is called as....
A. Centre of pressure
B. Centre of buoyancy
C. Metacentre
D. None of the above

14. The centre of buoyancy is the centre of area of the immersed body.
A. True
B. False

15. The force of buoyancy depends upon the...
A. Weight of the liquid displaced
B. Viscosity of liquid
C. Compressibility of liquid
D. All of the above

16. The Body floating in the liquid it said to be neutral if it's metacentre is...
A. Coincide with the centre of gravity
B. Above the centre of gravity
C. Below the centre of gravity
D. Nice between centre of buoyancy and centre of gravity

17. Body is said to be in stable equilibrium if the centre of gravity is lies below the centre of buoyancy.
A. True
B. False

18. One cubic meter of water weight is...
A. 100 lit
B. 250 lit
C. 500 lit
D. 1000 lit

19. In the passenger ship for the comfort the less metacentric height is used.
A. True
B. False

20. One litre of water occupies volume is...
A. 100 cm3
B. 250 cm3
C. 500 cm3
D. 1000 cm3

21. In the worship for required stability the high metacentric height is used.
A. True
B. False

22. The partially submerged body is said to be unstable if M lies below G.
A. True
B. False

23. In the partially submerged body to obtained stable condition M lies above G.
A. True
B. False

Here we concluding, If you have any queries about the topic of Mcq on buoyancy and floatation then feel free to comment below.

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