Mechanical Operations Size reduction of asbestos and mica is done by Hammer mills Crushing rolls Rod mills Gyratory crushers Hammer mills Crushing rolls Rod mills Gyratory crushers ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The most efficient equipment for the removal of sub-micronic dust particles from blast furnace gas is the Venturi atomiser Electro-static precipitator Cyclone separator Gravity settling chamber Venturi atomiser Electro-static precipitator Cyclone separator Gravity settling chamber ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Separation of isotopes is generally done using a/an __________ centrifuge. Ultra Disk-bowl Neither A nor B Both A & B Ultra Disk-bowl Neither A nor B Both A & B ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations For crushing of solids, the Rittinger's law states that the work required for crushing is proportional to None of these The new surface created The change in volume due to crushing The size reduction ratio None of these The new surface created The change in volume due to crushing The size reduction ratio ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Size reduction does not occur due to compression in case of Gyratory crushers Jaw crushers Smooth roll crushers Rod mills Gyratory crushers Jaw crushers Smooth roll crushers Rod mills ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations At low Reynold's number, the power (P) required for agitating a fluid in a stirred tank becomes independent of inertial forces. In this limit, indicate which of the following relations is satisfied: Po = ρ/ρN3 D5 : Power number Re = ρ N D2/μ: Reynold's number N is the impeller rotational speed, and D is the impeller diameter. Po ∝ Re0.5 Po ∝ Re-1.0 Po ∝ Re0.0 Po ∝ Re1.0 Po ∝ Re0.5 Po ∝ Re-1.0 Po ∝ Re0.0 Po ∝ Re1.0 ANSWER DOWNLOAD EXAMIANS APP