Q. Carbon black is pulverised in a

View solution

Q. The most efficient equipment for the removal of sub-micronic dust particles from blast furnace gas is the

View solution

Q. The filtrate flow rate in constant pressure filtration

View solution

Q. Theoretical capacity of crushing rolls in tons/hr is given by (where, V = peripherial velocity, m/sec. W = width of rolls, m Dr = distance between rolls ρ = density of material to be crushed, kg/m³ here, V =πN.D where, N = speed of the rolls in rotation per second (rps) D = diameter of rolls, m)

View solution

Q. Vibrating screens are used for handling large tonnages of materials. The vibrating motion is imparted to the screening surface by means of

View solution

Q. The inlet pressure in a constant rate filtration

View solution

Q. Size reduction of moulding powders, waxes, resins & gums are done in a __________ mill.

View solution

Q. Particle size range in which dust catcher (gravity settling chamber) works most effectively and efficiently is __________ microns.

View solution

Q. __________ centrifuge is the most suitable for separation of non-friable crystals.

View solution

Q. For benefication of iron ore, the most commonly used method is

View solution

Q. The capacity of a gyratory crusher is __________ that of a jaw crusher with the same gape, handling the same feed & for the same product size range.

View solution

Q. In classification, particles are said to be equal settling, if they have the same terminal velocities in the

View solution

Q. Dispersion of a gas through liquid is done by using a

View solution

Q. Work index is defined as the

View solution

Q. Removal of activated carbon from glycerine is done by

View solution

Q. A __________ employs a set of screen across a flow channel for the separation of dirt/rust from a flowing liquid stream.

View solution

Q. Separation of a suspension or slurry into a supernatant clear liquid (free from particles) and a thick sludge containing a high concentration of solid is called

View solution

Q. Reciprocal of sphericity is termed as the

View solution

Q. With increase in the pressure drop across the cake, the specific cake resistance for the compressible sludge

View solution

Q. Pick out the wrong statement.

View solution