Mechanical Operations Wet grinding in a revolving mill __________ as compared to dry grinding. Increases capacity Gives less wear on chamber walls Complicates handling of the product Requires more energy Increases capacity Gives less wear on chamber walls Complicates handling of the product Requires more energy ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Production rate __________ with increased fineness, with a given energy input to the size reduction machine. May increase or decrease; depends on the machine Increases Decreases Remains unchanged May increase or decrease; depends on the machine Increases Decreases Remains unchanged ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following is used for primary crushing of very hard lumpy materials? Gyratory crusher Ball mill Tube mill Toothed roll crusher Gyratory crusher Ball mill Tube mill Toothed roll crusher ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations For laminar flow of filtrate through the cake deposited on septum, which of the following will be valid? Kozney-Karman equation None of these Leva Blake-Plummer equation Kozney-Karman equation None of these Leva Blake-Plummer equation ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Higher is the mesh number, smaller will be the aperture size of the screen. It means that the aperture size of a 200 mesh screen will be smaller than that of 20 mesh screen. This is valid for German standard screens (DIN 1171) etc All of these British standard screens American standard screens (ASTM and Tyler standard screens) German standard screens (DIN 1171) etc All of these British standard screens American standard screens (ASTM and Tyler standard screens) ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Stamp mills are generally used for crushing Diamond Gold ores Iron ores Talc Diamond Gold ores Iron ores Talc ANSWER DOWNLOAD EXAMIANS APP
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