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 = dp Sp/Vp Φs = 6 Vp/dp sp Φs = 6 dp Sp/Vp Φs = Vp/dp sp Φs = dp Sp/Vp Φs = 6 Vp/dp sp Φs = 6 dp Sp/Vp Φs = Vp/dp sp ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Tabular bowl centrifuges as compared to disk bowl centrifuges Operate at higher speed Employ bowl of larger diameter Can't be used for separation of fine suspended solids from a liquid Can not be operated under pressure/vacuum Operate at higher speed Employ bowl of larger diameter Can't be used for separation of fine suspended solids from a liquid Can not be operated under pressure/vacuum ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations With increase in the capacity of screens, the screen effectiveness Increases Remains unchanged Decreases Decreases exponentially Increases Remains unchanged Decreases Decreases exponentially ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Filtration operation carried out by continuous increase of the inlet pressure of slurry, is called the __________ filtration. Constant pressure Varying rate Varying pressure Constant rate Constant pressure Varying rate Varying pressure Constant rate ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations In the cyclone separator used for separation of dust from dust laden gas, the gas Both B and C Enters the cyclone from the top Is admitted tangentially at high velocity Develops a helical motion inside the chamber Both B and C Enters the cyclone from the top Is admitted tangentially at high velocity Develops a helical motion inside the chamber ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Mixing mechanism employed in a pan mixer is by Mulling Kneading Dispersion None of these Mulling Kneading Dispersion None of these ANSWER DOWNLOAD EXAMIANS APP
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