Mechanical Operations The mechanism of size reduction by a hammer mill is by impact and attrition between the Grinding element & the housing Both A & B Neither A nor B Feed particles Grinding element & the housing Both A & B Neither A nor B Feed particles ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Balls for ball mills are never made of Alloy steel Cast iron Lead Forged/cast steel Alloy steel Cast iron Lead Forged/cast steel ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Separation of solid particles based on their densities is called Dispersion Clarification Sorting Sizing Dispersion Clarification Sorting Sizing ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Capacity (in tons/hr) of jaw/gyratory crusher is equal to (where, L = length of the receiving opening, cm S = greater width of the discharge opening, cm) 0.087 L.S L.S 0.01 L.S L.S/0.087 0.087 L.S L.S 0.01 L.S L.S/0.087 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Height of liquid in agitation tank is normally maintained equal to the tank diameter. However, if the tank is too tall and a large liquid hold up is desired, then two or more impellers mounted on the same shaft may be used. The clearance between the tank bottom and the bottom most impeller should be about (where, D = impeller diameter) 1.5 D 0.5 D 2 D D 1.5 D 0.5 D 2 D D ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations For efficient grinding, ball mills must be operated With minimum possible small balls At a speed less than the critical speed At a speed more than the critical speed At a speed equal to the critical speed With minimum possible small balls At a speed less than the critical speed At a speed more than the critical speed At a speed equal to the critical speed ANSWER DOWNLOAD EXAMIANS APP
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