Umf is the minimum fluidisation velocity for a bed of particles. An i – McqOptions

MCQOPTIONS

1.	Umf is the minimum fluidisation velocity for a bed of particles. An increase in the superficial gas velocity from 2 Umf to 2.5 Umf results in (all velocities are smaller than the entrainment velocity of the particles) no change in the
A.	Drag on particles
B.	Drag on coloumn walls
C.	Bed height
D.	Bed voidage
Answer» D. Bed voidage

Discussion

No Comment Found

Related MCQs

In which of the following methods, the observer concentrates on a point in the fluid system?
In case of a closed cylindrical vessel sealed at the top and the bottom the volume of air before rotation is ...... the volume of air after:
Regarding cavitation which of the following statements in incorrect?
High velocity flow in a conduit of large size is known as
The tendency for an immersed body to be lifted up in the fluid, due to an upward force opposite to theaction of gravity is known as
........ is defined as a scalar function of space and time such that its negative derivative with respect to any direction gives the fluid velocity in that direction.
The pressure gradient in the direction of flow is equal to the shear gradient in the direction
Specific speed of a turbo-machine
The total energy represented by the Bernoulli’s equation (p/ρg +V2/2g +z) has the units:
Compressibility is the reciprocal of