Mechanical Operations Rod mills employed for grinding Employ steel rods of 2-12 cms diameter extending over full length of the mill Is useful for handling sticky materials Employ a steel shell having L/D ratio of 1.5 to 3.0 All of these Employ steel rods of 2-12 cms diameter extending over full length of the mill Is useful for handling sticky materials Employ a steel shell having L/D ratio of 1.5 to 3.0 All of these ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations __________ is defined as the geometric mean of the relative rejections and the relative recoveries of two minerals. Concentration ratio Separation efficiency None of these Selectivity index Concentration ratio Separation efficiency None of these Selectivity index ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations 200 mesh seive size corresponds to __________ microns. 154 24 200 74 154 24 200 74 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations A filter press is A batch filter Having prohibitively high maintenance cost Not suitable for wide range of materials under varying operating conditions of cake thickness and pressure Not suitable, if the liquid is the main product A batch filter Having prohibitively high maintenance cost Not suitable for wide range of materials under varying operating conditions of cake thickness and pressure Not suitable, if the liquid is the main product ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The optimum moisture content in solids to be crushed/ground ranges from __________ percent. 15 to 20 10 to 15 3 to 4 8 to 10 15 to 20 10 to 15 3 to 4 8 to 10 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Reciprocating screens are normally inclined at an angle of 5° with the horizontal and employ gyratory motion at feed end & reciprocating motion at the discharge end. They are not suitable for the screening of the Light metal powder down upto 4 meshsize Dry chemicals Powdered food & granular materials Heavy tonnages of rocks or gravel Light metal powder down upto 4 meshsize Dry chemicals Powdered food & granular materials Heavy tonnages of rocks or gravel ANSWER DOWNLOAD EXAMIANS APP
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