12 Questions
What is the principle of buoyancy according to the text?
The body will be lifted up by a force equal to the weight of the fluid displaced by the body.
What happens to the pressure intensity in a rotating liquid as described in the text?
Inversely as the square of the radial distance
Where does the line of action of the buoyant force act according to the text?
Centroid of the displaced volume of fluid
Which statement about fluid particles is true?
The velocity of successive fluid particles, at any point, is the same at successive periods of time.
What happens to the density of water as described in the text?
Density is constant regardless of temperature changes.
Which of the following properties describes a dimensionless quantity?
Reynolds number
What is the specific weight 4.Méetacentric height given as per the text?
The distance between the center of gravity of the body and the meta center
What does a large Reynolds number indicate?
Highly turbulent flow
When does uniform flow occur?
When the size and shape of the cross section remain constant
What defines steady flow in a fluid system?
The direction and magnitude of velocity at all points are identical
What force causes the free surface of a liquid to contract to the smallest possible area?
Surface tension
Why is mercury often used in barometers?
Both (B) and (C)
Test your knowledge about the principle of buoyancy. Answer questions related to the force exerted on a body immersed in a fluid, and the relationship between the weight of the body and the weight of the fluid displaced.
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