In a fluidised bed reactor

1.	In a fluidised bed reactor
A.	temperature gradients are very high.
B.	temperature is more or less uniform.
C.	hot spots are formed.
D.	segregation of the solids occurs.
Answer» C. hot spots are formed.

Discussion

No Comment Found

Related MCQs

A centrifugal pump is used to pump water through a horizontal distance of 150 m, and then raised to an overhead tank 10 m above. The pipe is smooth with an I.D of 50 mm. What head (m of water) must the pump generate at its exit (E) to deliver water at a flow rate of 0.001 m/s? The Fanning friction factor, is 0.0062.
Hydraulic mean depth () for a circular pipe of diameter 'D' flowing full is 0.25 D. For a circular channel, at = 0.3 D, gives the condition for the maximum
The terminal velocity of a particle moving through a fluid varies as d. What is the value of n' for Newton's law regime ?
A Bingham fluid of viscosity μ = 10 Pa.s and yield stress, τ = 10 KPa, is shared between flat parallel plates separated by a distance of 10 m. The top plate is moving with a velocity of 1 m/s. The shear stress on the plate is
For Laminar flow through a packed bed, the pressure drop is proportional to ( is the superficial liquid velocity and is the particle diameter)
Dimension of surface tension is(where, = force, = length)
Co-efficient of discharge () is defined as actual discharge/theoretical discharge and is equal to . ; where = Co-efficient of contraction and = co-efficient of velocity. of an orifice is usually about
The drag co-efficient for a bacterium moving in water at 1 mm/s, will be of the following order of magnitude (assume size of the bacterium to be 1 micron and kinematic viscosity of water to be 10m/s).
For the free settling of a spherical particle through a fluid, the slope of, C-log N , plot is
Buckingham-π theorem states that in any physical problem including '' quantities having '' diamensions, the quantities can be arranged into __________ independent dimensionless parameters.

In a fluidised bed reactor

Discussion

No Comment Found

Related MCQs

Reply to Comment