__________ mills are termed as impactors. None of these Hammer Rolling-compression Cage TRUE ANSWER : ? YOUR ANSWER : ?
For grinding of cereals, grains, spices, pigments, saw dust, cork etc., the most extensively used size reduction equipment is a Ball mill Buhrstone mill Crushing rolls Hammer mill TRUE ANSWER : ? YOUR ANSWER : ?
__________ centrifuge is the most suitable for separation of non-friable crystals. Tubular bowl Suspended batch basket Perforated horizontal basket continuous Disc-bowl TRUE ANSWER : ? YOUR ANSWER : ?
Washability curve based on float and sink test enables an assessment to be made of the possibility of cleaning a coal fraction based on the Differential wettability Density separation Volatile matter content Size TRUE ANSWER : ? YOUR ANSWER : ?
Power consumption during turbulent flow in agitation tank is proportional to the __________ of the liquid. Surface tension Density Viscosity Thermal conductivity TRUE ANSWER : ? YOUR ANSWER : ?
Which one is a filter aid? Diatomaceous earth Convas fabric Calcined lime None of these TRUE ANSWER : ? YOUR ANSWER : ?
In froth floatation, chemical agent added to cause air adherence is called Activator Frother Collector Modifier TRUE ANSWER : ? YOUR ANSWER : ?
The critical speed of a trommel (N) is related to its dia (D) as N ∝ 1/D N ∝ D N ∝ 1/√D N ∝ √D TRUE ANSWER : ? YOUR ANSWER : ?
Energy consumed for crushing one ton of material ranges from __________ kWh. 0.5 to 1.5 0.01 to 0.1 2 to 3.5 4 to 5 TRUE ANSWER : ? YOUR ANSWER : ?
The optimum moisture content in solids to be crushed/ground ranges from __________ percent. 10 to 15 8 to 10 15 to 20 3 to 4 TRUE ANSWER : ? YOUR ANSWER : ?