Mechanical Operations Which of the following grinding mills has the horizontally arranged rods as the grinding elements thereby delivering more uniform granular products with minimum fines? Pebble mill Tube mill Rod mill Compartment mill Pebble mill Tube mill Rod mill Compartment mill ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Ultracentrifuges running at speeds upto 100000 rpm is normally used for the Separation of isotopes based on their density or molecular weights difference Concentration of rubber latex Separation of cream from milk Dewaxing of lubricating oil Separation of isotopes based on their density or molecular weights difference Concentration of rubber latex Separation of cream from milk Dewaxing of lubricating oil ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Tabular bowl centrifuges as compared to disk bowl centrifuges Can not be operated under pressure/vacuum Can't be used for separation of fine suspended solids from a liquid Operate at higher speed Employ bowl of larger diameter Can not be operated under pressure/vacuum Can't be used for separation of fine suspended solids from a liquid Operate at higher speed Employ bowl of larger diameter ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations A filter press is A batch filter Not suitable, if the liquid is the main product Not suitable for wide range of materials under varying operating conditions of cake thickness and pressure Having prohibitively high maintenance cost A batch filter Not suitable, if the liquid is the main product Not suitable for wide range of materials under varying operating conditions of cake thickness and pressure Having prohibitively high maintenance cost ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Sphericity is the ratio of the surface area of a spherical particle having the same volume as the particle to the surface area of the particle. Which of the following has the maximum value of sphericity? Raschig rings Cube Cylinder (L/D = 1) Sphere Raschig rings Cube Cylinder (L/D = 1) Sphere ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Pine oil and cresylic acid are used as __________ in the froth floatation process. Collector Conditioner Depressor Frother Collector Conditioner Depressor Frother ANSWER DOWNLOAD EXAMIANS APP
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