Mechanical Operations In case of a hammer crusher, the Minimum product size is 3 mm Rotor shaft carrying hammers can be vertical or horizontal Maximum feed size may be 50 mm Feed may be highly abrasive (Moh's scale >5) Minimum product size is 3 mm Rotor shaft carrying hammers can be vertical or horizontal Maximum feed size may be 50 mm Feed may be highly abrasive (Moh's scale >5) ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations For spheres, the surface shape factor is given by (where, A = area, V = volume, and D = diameter) AD/V None of these π(=A/D²) π/6(=V/D³) AD/V None of these π(=A/D²) π/6(=V/D³) ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Toothed roll crushers achieve size reduction by Tearing (shear) and compression Impact and attrition Both A & B Neither A nor B Tearing (shear) and compression Impact and attrition Both A & B Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Reciprocating screens are normally inclined at an angle of 5° with the horizontal and employ gyratory motion at feed end & reciprocating motion at the discharge end. They are not suitable for the screening of the Powdered food & granular materials Heavy tonnages of rocks or gravel Dry chemicals Light metal powder down upto 4 meshsize Powdered food & granular materials Heavy tonnages of rocks or gravel Dry chemicals Light metal powder down upto 4 meshsize ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The main size reduction operation in ultrafine grinders is Compression Attrition Cutting Impact Compression Attrition Cutting Impact ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Jigging is a technique by which different particles can be Separated by particle size Separated by particle density Separated by particle shape Mixed Separated by particle size Separated by particle density Separated by particle shape Mixed ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS