Which of the following is not accomplished by agitation of liquids in agitators? Suspending solid particles Dispersing immiscible liquid in form of emulsion Dispersing gas in liquid Blending of immiscible liquids TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is the most suitable for cleaning of fine coal dust (<0.5 mm)? Spiral separator Trough washer Froth floatation Baum jig washer TRUE ANSWER : ? YOUR ANSWER : ?
Sorting classifiers employing differential settling methods for separation of particles make use of the differences in their None of these Densities Particle sizes Terminal velocities TRUE ANSWER : ? YOUR ANSWER : ?
Width and speed of a conveyor belt depends upon the __________ of the material. Both A & B Bulk density Neither A nor B Lump size TRUE ANSWER : ? YOUR ANSWER : ?
Vibrating screens are used for handling large tonnages of materials. The vibrating motion is imparted to the screening surface by means of Either A, B or C Unblanced fly wheels Electromagnets Cams or eccentric shafts TRUE ANSWER : ? YOUR ANSWER : ?
In a size reduction crushing operation, feed size is 100 to 300 mm. while the product size is 10 to 50 mm. This is a case of the __________ crushing. Secondary Primary Ultrafine Fine TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is not a non-metalliferous mineral? Calcite Cassiterrite Fluorspar Quartz TRUE ANSWER : ? YOUR ANSWER : ?
Screen capacity is expressed in terms of Both A & B Tons/hr Tons/ft² Tons/hr-ft² TRUE ANSWER : ? YOUR ANSWER : ?
For the preliminary breaking of hard rock, we use a Ball mill Tube mill Squirrel-cage disintegrator Gyratory crusher TRUE ANSWER : ? YOUR ANSWER : ?