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 Dry chemicals Light metal powder down upto 4 meshsize Powdered food & granular materials Heavy tonnages of rocks or gravel Dry chemicals Light metal powder down upto 4 meshsize Powdered food & granular materials Heavy tonnages of rocks or gravel ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Actual operating speed of a ball mill may vary from 65 to 80% of the critical speed. Which of the following duties would require the ball mill to be operated at maximum percentage of critical speed? Dry grinding of large particles (upto 1.25 cms) Wet grinding in low viscous suspension Wet grinding in high viscous suspension Dry grindng of large particles in un-baffed mills Dry grinding of large particles (upto 1.25 cms) Wet grinding in low viscous suspension Wet grinding in high viscous suspension Dry grindng of large particles in un-baffed mills ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The capacity of a belt conveyor depends upon two factors. If one is the cross-section of the load, the other is the __________ of the belt. Thickness Length None of these Speed Thickness Length None of these Speed ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Reciprocal of sphericity is termed as the Shape factor Sauter diameter Specific surface ratio Surface area per unit mass Shape factor Sauter diameter Specific surface ratio Surface area per unit mass ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Handling of ashes and similar materials can be done best by a __________ conveyor. Ribbon Flight Belt Drag or slat Ribbon Flight Belt Drag or slat ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Tabular bowl centrifuges as compared to disk bowl centrifuges Employ bowl of larger diameter Can not be operated under pressure/vacuum Operate at higher speed Can't be used for separation of fine suspended solids from a liquid Employ bowl of larger diameter Can not be operated under pressure/vacuum Operate at higher speed Can't be used for separation of fine suspended solids from a liquid ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS