The major loss of energy in long pipes is due to
A. sudden enlargement
B. sudden contraction
C. gradual contraction or enlargement
D. friction
Answer: Option D
This Question Belongs to Civil Engineering >> Hydraulics And Fluid Mechanics
Join The Discussion
Comments ( 2 )
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
A non-Newtonian fluid that can be described by a power law model for which n is 0.2 and k is 5 (kPa s)^n is to be pumped through a pipe of length 10 m and inside diameter of 20 mm. Determine the radius required for another pipe of 20 m in length to carry the fluid at the same rate with the same pressure drop.
The major loss of energy in long pipes is due to