A. centroid of the volume of fluid vertically above the body
B. center of the volume of floating body
C. center of gravity of any submerged body
D. centriod of the displaced volume of fluid
Answer: Option D
This Question Belongs to Civil Engineering >> Hydraulics And Fluid Mechanics
A. 22.5 m/sec.
B. 33 m/sec.
C. 40 m/sec.
D. 90 m/sec.
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
The difference of pressure between the inside and outside of a liquid drop is
A. $${\text{p}} = {\text{T}} \times {\text{r}}$$
B. $${\text{p}} = \frac{{\text{T}}}{{\text{r}}}$$
C. $${\text{p}} = \frac{{\text{T}}}{{2{\text{r}}}}$$
D. $${\text{p}} = \frac{{2{\text{T}}}}{{\text{r}}}$$
A. cannot be subjected to shear forces
B. always expands until it fills any container
C. has the same shear stress.at a point regardless of its motion
D. cannot remain at rest under action of any shear force
The correct answer is D. When an object is submerged or floating in a fluid, the buoyant force acts upward through the centroid of the displaced volume of fluid. This is known as Archimedes' principle.