Mechanical Operations Rittinger's crushing law states that Work required to form a particle of any size is proportional to the square of the surface to volume ratio of the product For a given machine and feed, crushing efficiency is dependent on the size of the feed & product Work required in crushing is proportional to the new surface created Work required to form a particle of a particular size is proportional to the square root of the surface to volume ratio of the product Work required to form a particle of any size is proportional to the square of the surface to volume ratio of the product For a given machine and feed, crushing efficiency is dependent on the size of the feed & product Work required in crushing is proportional to the new surface created Work required to form a particle of a particular size is proportional to the square root of the surface to volume ratio of the product ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Choke crushing (in case of a Jaw crusher) compared to free crushing Both A and C Consumes less power Consumes more power Results in increased capacity Both A and C Consumes less power Consumes more power Results in increased capacity ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Xanthates are used in the froth floatation process as a/an Frother Activator Conditioner Collector Frother Activator Conditioner Collector ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations A belt conveyor used for the transportation of materials can All of these Run upto 1 km Handle materials upto 5000 tons/hr Travel at a speed upto 300 metres/minute All of these Run upto 1 km Handle materials upto 5000 tons/hr Travel at a speed upto 300 metres/minute ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Production rate __________ with increased fineness, with a given energy input to the size reduction machine. Increases Remains unchanged Decreases May increase or decrease; depends on the machine Increases Remains unchanged Decreases May increase or decrease; depends on the machine ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Grinding characteristic of a material is given by its Abrasion index Shatter index Angle of repose HGI Abrasion index Shatter index Angle of repose HGI ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS