Mechanical Operations What is the critical rotation speed in revolutions per second, for a ball mill of 1.2 m diameter charged with 70 mm dia balls? 1 0.5 2.76 0.66 1 0.5 2.76 0.66 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Width and speed of a conveyor belt depends upon the __________ of the material. Lump size Neither A nor B Bulk density Both A & B Lump size Neither A nor B Bulk density Both A & B ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations A tube mill compared to a ball mill Produces a coarser product Has a higher diameter/length ratio Has a higher length/diameter ratio Uses much larger balls Produces a coarser product Has a higher diameter/length ratio Has a higher length/diameter ratio Uses much larger balls ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations What is the usual value of angle of nip for crushing of ordinary rock in smooth steel crushing rolls? 46° 40° 32° 16° 46° 40° 32° 16° ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Moore filter is a __________ filter. Press Leaf Sand Rotary Press Leaf Sand Rotary ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Pebble mills are tumbling mills widely used for grinding in the manufacture of paints & pigments and cosmetic industries, where iron contamination in the product is highly objectionable. Pebbles used in pebble mill are made of Concrete Bronze Stainless steel Flint or porcelain Concrete Bronze Stainless steel Flint or porcelain ANSWER DOWNLOAD EXAMIANS APP
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