Mechanical Operations Capacity (in tons/hr) of jaw/gyratory crusher is equal to (where, L = length of the receiving opening, cm S = greater width of the discharge opening, cm) L.S/0.087 0.087 L.S 0.01 L.S L.S L.S/0.087 0.087 L.S 0.01 L.S L.S ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Size reduction of the __________ can be suitably done by ball mills, crushing rolls and rod mills. Basic slags Non-metallic ores Metalliferrous ores Asbestos & mica Basic slags Non-metallic ores Metalliferrous ores Asbestos & mica ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Choke crushing (in case of a Jaw crusher) compared to free crushing Both A and C Consumes more power Consumes less power Results in increased capacity Both A and C Consumes more power Consumes less power Results in increased capacity ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Toothed roll crushers achieve size reduction by Tearing (shear) and compression Impact and attrition Both A & B Neither A nor B Tearing (shear) and compression Impact and attrition Both A & B Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
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 500°C and 50 atm 1000°C and 10 atm 1000°C and 500 atm 200°C and 5 atm 500°C and 50 atm 1000°C and 10 atm ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The work index in Bond's law for crushing of solids has the following dimensions No units (dimensionless) KW/ton KWh/ton KWh.m1/2/ton No units (dimensionless) KW/ton KWh/ton KWh.m1/2/ton ANSWER DOWNLOAD EXAMIANS APP
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