A. Solid-liquid mixing
B. Liquid-liquid mixing
C. Dispersion of liquid in liquid
D. Suspension of solid in liquid
Related Mcqs:
- During agitation of liquids, the_________________?
A. Froude number is independent for the curves between power number and Reynolds number in
baffled system
B. Power number becomes independent of impellers Reynolds number at high Reynolds number,
but is dependent on the geometry of the impeller
C. Froude number is used to account for the effect of surface (e.g., the centre vortex) on the
power number
D. All A., B. and C. - If radius of a batch basket centrifuge is halved & the r.p.m. is doubled, then the_________________?
A. Linear speed of the basket is doubled
B. Linear speed of the basket is halved
C. Centrifugal force is doubled
D. Capacity of centrifuge is increased - The constants (Kb, Kr and Kk) used in the laws of crushing (i.e., Bond’s law, Rittinger’s law and Kick’s law) depend upon the_________________?
A. Feed material
B. Type of crushing machine
C. Both A. & B.
D. Neither A. nor B. - Cartridge filters are termed as ‘edge’ filters, because of the fact that the_________________?
A. Disks have very sharp edge
B. Solids are not deposited at the edge of the disk
C. Bulk of the solids are removed at the periphery of the disks
D. None of these - In a roll crusher, the specific power consumption and the production rate is affected by the_________________?
A. Reduction ratio
B. Differential roll speed
C. Both A. and B.
D. Neither A. nor B. - A compressible cake has the_________________?
A. Maximum porosity at the upstream side
B. Maximum porosity at the filter medium
C. Same porosity throughout the cake thickness
D. None of these - Filtration should be stopped in a filter press, if the_________________?
A. Cake becomes very dense
B. Liquor stops flowing out to the discharge
C. Filtration pressure rises suddenly
D. Both B. & C. - Work index is defined as the_________________?
A. Gross energy (kWh/ton of feed) needed to reduce very large feed to such a size that 80% of
the product passes through a 100 micron screen
B. Energy needed to crush one tonne of feed to 200 microns
C. Energy (kWh/ton of feed) needed to crush small feed to such a size that 80% of the product
passes a 200 mesh screen
D. Energy needed to crush one ton of feed to 100 microns - In closed circuit grinding as compared to open circuit grinding, the_________________?
A. Specific surface of product is more
B. Product has lesser size uniformity
C. Production rate at a given limiting size is lower
D. Operation is economical - The term ‘angle of nip’ is concerned with the operation of the ____________ crushers?
A. Jaw
B. Roll
C. Gyratory
D. None of these
