Mechanical Operations A pebble mill Is a tube mill lined with ceramic or other non-metallic liner Employs flints or ceramic pebbles as the grinding medium Both B and C Is a ball mill Is a tube mill lined with ceramic or other non-metallic liner Employs flints or ceramic pebbles as the grinding medium Both B and C Is a ball mill ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Trommels are revolving screens which normally operate in the range of __________ rpm. 43832 15 - 20 40 - 50 60 - 75 43832 15 - 20 40 - 50 60 - 75 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Vibrating screens have capacity in the range of __________ tons/ft² .mm mesh size. 50 to 100 5 to 25 100 to 250 0.2 to 0.8 50 to 100 5 to 25 100 to 250 0.2 to 0.8 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations For a cyclone of diameter 0.2 m with a tangential velocity of 15 m/s at the wall, the separation factor is 1125 230 460 2250 1125 230 460 2250 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Filter aid is used to Increase the porosity of the cake Decrease the pressure drop Increase the rate of filtration Act as a support base for the septum Increase the porosity of the cake Decrease the pressure drop Increase the rate of filtration Act as a support base for the septum ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations A sand mixture was screened through a standard 10-mesh screen. The mass fraction of the oversize material in feed, overflow and underflow were found to be 0.38, 0.79 and 0.22 respectively. The screen effectiveness based on the oversize is 0.68 0.5 0.62 0.58 0.68 0.5 0.62 0.58 ANSWER DOWNLOAD EXAMIANS APP
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