The discharge of a liquid of kinematic viscosity 4 cm2/sec through a 8 cm dia-meter pipe is 3200π cm2/sec. The type of flow expected is
A. laminar flow
B. transition flow
C. turbulent flow
D. not predictable from the given data
Answer: Option A
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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
discharge (Q)=AV
hence V can be calculated as 63.66 cm/sec
Using Re=VD/kinemetic viscosity(v)
Re=127.32 which is < 2000
hence the flow will be laminar
Reynold's no from given data is 400, which is less than 2000. Hence, its a Laminar flow