As the reflux ratio, in a continuous counter-current extraction is increased, the number of stages

Question: In case of laminar flow of fluid through a circular pipe, the
[A].

shear stress over the cross-section is proportional to the distance from the surface of the pipe.

[B].

surface of velocity distribution is a paraboloid of revolution, whose volume equals half the volume of circumscribing cylinder.

[C].

velocity profile varies hyperbolically and the shear stress remains constant over the cross-section.

[D].

average flow occurs at a radial distance of 0.5 r from the centre of the pipe (r = pipe radius).

Answer: Option B

Explanation:

No answer description available for this question.

Question: A special type of liquid transporting device is the diffuser pump, in which __________ are minimised.
[A].

bearing losses

[B].

disk friction

[C].

shock losses

[D].

cavitation

Answer: Option C

Explanation:

No answer description available for this question.