The inlet pressure in a constant rate filtration____________________?
The inlet pressure in a constant rate filtration____________________? A. Increases continuously B. Decreases gradually C. Remains constant D. None of these
The inlet pressure in a constant rate filtration____________________? A. Increases continuously B. Decreases gradually C. Remains constant D. None of these
Trommels separate a mixture of particles depending on their_____________________? A. Size B. Density C. Wettability D. Electrical & magnetic properties
Close circuit grinding by a ball mill with air sweeg employs a _______________________? A. Classifier B. Cyclone separator between mill & classifierC. Both A. & B. D. Neither A. nor B.
Which of the following mechanical conveyors does not come under the division „scrapers‟ ? A. Ribbon conveyor B. Flight conveyorC. Bucket elevators D. Drag conveyor
Which of the following is the softest material ? A. Talc B. Feldspar C. Corundum D. Calcite
All resistances during washing of cake _____________________? A. Increases B. DecreasesC. Remain constant D. None of these
Metallic wire mesh is used as a filtering medium for the separation of dust from dust laden gas in case of a/an________________? A. Air filter B. Bag filter C. Venturi scrubber D. Hydrocyclones
The work index in Bond’s law for crushing of solids has the following dimensions__________________? A. No units (dimensionless)B. kWh/ton C. kW/ton D. kWh.m1/2/ton
Which of the following minerals is not subjected to magnetic separation method ? A. RutileB. Galena C. Chromite D. Siderite
Stamp mills are generally used for crushing__________________? A. Iron oresB. Gold ores C. Talc D. Diamond