Mechanical Operations The most suitable equipment for the transportation of 200 mesh size particles is a Pneumatic conveyor Bucket elevator Belt conveyor Screw conveyor Pneumatic conveyor Bucket elevator Belt conveyor Screw conveyor ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Production rate __________ with increased fineness, with a given energy input to the size reduction machine. Decreases May increase or decrease; depends on the machine Remains unchanged Increases Decreases May increase or decrease; depends on the machine Remains unchanged Increases ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations There is practically no alternative/competitor to __________ in the beneficiation treatment of sulphide ores. Froth floatation Jigging Tabling Classification Froth floatation Jigging Tabling Classification ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The critical speed of a trommel (N) is related to its dia (D) as N ∝ 1/D N ∝ D N ∝ 1/√D N ∝ √D N ∝ 1/D N ∝ D N ∝ 1/√D N ∝ √D ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Trommels are revolving screens which normally operate in the range of __________ rpm. 43832 60 - 75 40 - 50 15 - 20 43832 60 - 75 40 - 50 15 - 20 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Tube mill compared to ball mill Uses smaller balls Is long in comparison with its diameter All of these Produces finer products Uses smaller balls Is long in comparison with its diameter All of these Produces finer products ANSWER DOWNLOAD EXAMIANS APP