Mechanical Operations In a size reduction crushing operation, feed size is 300 to 1500 mm while the product size is 100 to 300 mm. This is a case of the __________ crushing. Secondary Fine Primary Ultrafine Secondary Fine Primary Ultrafine ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Short distance transportation of grain, gravel, sand, ash, asphalt etc. is done by using a __________ conveyor. Ribbon Slat or drag Flight Screw Ribbon Slat or drag Flight Screw ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Screw conveyors are Suitable for highly abrasive materials Suitable for sticky materials Run at very high rpm All of these Suitable for highly abrasive materials Suitable for sticky materials Run at very high rpm All of these ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following achieves the least reduction ratio for a given feed size? Roll crusher Cone crusher Gyratory crusher Jaw crusher Roll crusher Cone crusher Gyratory crusher Jaw crusher ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations __________ is defined as the geometric mean of the relative rejections and the relative recoveries of two minerals. Selectivity index None of these Concentration ratio Separation efficiency Selectivity index None of these Concentration ratio Separation efficiency ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Screen efficiency is Recovery/rejection Recovery None of these Rejection Recovery/rejection Recovery None of these Rejection ANSWER DOWNLOAD EXAMIANS APP
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