Mechanical Operations Dust collection efficiency of electrostatic precipitator can be as high as 99.9%. Maximum temperature and pressure of dust laden gas that can be cleaned in an electrostatic precipitator is respectively. 1000°C and 500 atm 200°C and 5 atm 1000°C and 10 atm 500°C and 50 atm 1000°C and 500 atm 200°C and 5 atm 1000°C and 10 atm 500°C and 50 atm ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Carbon black is pulverised in a Hammer crusher Gyratory crusher Roll crusher Ball mill Hammer crusher Gyratory crusher Roll crusher Ball mill ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Apron conveyors are used for Heavy loads & long runs Small loads & long runs None of these Heavy loads & short runs Heavy loads & long runs Small loads & long runs None of these Heavy loads & short runs ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The optimum moisture content in solids to be crushed/ground ranges from __________ percent. 8 to 10 3 to 4 10 to 15 15 to 20 8 to 10 3 to 4 10 to 15 15 to 20 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations If dp is the equivalent diameter of a non-spherical particle, Vp its volume and sp its surface area, then its sphericity is Φs is defined by Φs = 6 dp Sp/Vp Φs = Vp/dp sp Φs = 6 Vp/dp sp Φs = dp Sp/Vp Φs = 6 dp Sp/Vp Φs = Vp/dp sp Φs = 6 Vp/dp sp Φs = dp Sp/Vp ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Kick's law assumes that the energy required for size reduction is proportional to the logarithm of the ratio between the initial and the final diameters. The unit of Kick's constant is KWh/sec. kg Kg/sec KWh/kg KW. sec/kg KWh/sec. kg Kg/sec KWh/kg KW. sec/kg ANSWER DOWNLOAD EXAMIANS APP