Mechanical Operations Rittinger number which designates the new surface prduced per unit of mechanical energy absorbed by the material being crushed, depends on the State or manner of application of the crushing force Elastic constant of the material All of these Ultimate strength of the material State or manner of application of the crushing force Elastic constant of the material All of these Ultimate strength of the material ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Crushing efficiency is the ratio of the Surface energy created by crushing to the energy absorbed by the solid Energy absorbed by the solid to that fed to the machine Energy absorbed by the solid to the surface energy created by crushing Energy fed to the machine to the surface energy created by crushing Surface energy created by crushing to the energy absorbed by the solid Energy absorbed by the solid to that fed to the machine Energy absorbed by the solid to the surface energy created by crushing Energy fed to the machine to the surface energy created by crushing ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations A pebble mill Both B and C Is a ball mill Employs flints or ceramic pebbles as the grinding medium Is a tube mill lined with ceramic or other non-metallic liner Both B and C Is a ball mill Employs flints or ceramic pebbles as the grinding medium Is a tube mill lined with ceramic or other non-metallic liner ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The ratio of the actual mesh dimension of Taylor series to that of the next smaller screen is 2 √3 1.5 √2 2 √3 1.5 √2 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations In case of a ball mill, Coarse feed requires a larger ball None of these Fine feed requires a larger ball Operating speed should be more than the critical speed Coarse feed requires a larger ball None of these Fine feed requires a larger ball Operating speed should be more than the critical speed ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Pulverised coal passing through 200 mesh screen has a diameter of 0.074 mm (74 micron). The same passing through 50 mesh screen will have a dia of __________ mm. 0.007 50 0.3 0.014 0.007 50 0.3 0.014 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS