Mechanical Operations Ore concentration by jigging is based on the difference in the __________ of the particles. None of these Shape Wettability Specific gravities None of these Shape Wettability Specific gravities ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Sulphuric acid mist is arrested by using a __________ scrubber. Venturi Hollow wet Co-current Packed wet Venturi Hollow wet Co-current Packed wet ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Specific surface area is the surface area of a unit __________ of materials. Volume Weight Either A or B Neither A nor B Volume Weight Either A or B Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Washability curve based on float and sink test enables an assessment to be made of the possibility of cleaning a coal fraction based on the Size Density separation Differential wettability Volatile matter content Size Density separation Differential wettability Volatile matter content ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations As per Taggart's formula, the capacity (kg/hr) of Jaw & Gyratory crushers (for gapes of 10 to 60 cms) is equal to (where, L = Length of feed opening, cms S = Maximum width of discharge opening, cms ) 93 LS √LS 250 LS LS 93 LS √LS 250 LS LS ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Crushing efficiency of a machine ranges between __________ percent. 5 to 10 20 to 25 0.1 to 2 50 to 70 5 to 10 20 to 25 0.1 to 2 50 to 70 ANSWER DOWNLOAD EXAMIANS APP
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