Mechanical Operations The material is crushed in a gyratory crusher by the action of Impact Cutting Attrition Compression Impact Cutting Attrition Compression ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations In a roll crusher, the specific power consumption and the production rate is affected by the Reduction ratio Neither A nor B Both A & B Differential roll speed Reduction ratio Neither A nor B Both A & B Differential roll speed ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following is the most suitable for cleaning of fine coal dust (<0.5 mm)? Trough washer Froth floatation Spiral separator Baum jig washer Trough washer Froth floatation Spiral separator Baum jig washer ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations In closed circuit grinding as compared to open circuit grinding, the Specific surface of product is more Product has lesser size uniformity Production rate at a given limiting size is lower Operation is economical Specific surface of product is more Product has lesser size uniformity Production rate at a given limiting size is lower Operation is economical ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Height of liquid in agitation tank is normally maintained equal to the tank diameter. However, if the tank is too tall and a large liquid hold up is desired, then two or more impellers mounted on the same shaft may be used. The clearance between the tank bottom and the bottom most impeller should be about (where, D = impeller diameter) D 1.5 D 0.5 D 2 D D 1.5 D 0.5 D 2 D ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Vibrating screens are used for handling large tonnages of materials. The vibrating motion is imparted to the screening surface by means of Electromagnets Unblanced fly wheels Cams or eccentric shafts Either A, B or C Electromagnets Unblanced fly wheels Cams or eccentric shafts Either A, B or C ANSWER DOWNLOAD EXAMIANS APP
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