Mechanical Operations In case of a ball mill, Coarse feed requires a larger ball Fine feed requires a larger ball None of these Operating speed should be more than the critical speed Coarse feed requires a larger ball Fine feed requires a larger ball None of these Operating speed should be more than the critical speed ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The ratio of the area of openings in one screen (Taylor series) to that of the openings in the next smaller screen is 1.5 ?2 1 None of these 1.5 ?2 1 None of these ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations During size reduction by a jaw crusher, the energy consumed decreases with the Decreasing machine capacity None of these Decreasing size of product at constant size of feed Increasing size of feed at constant reduction ratio Decreasing machine capacity None of these Decreasing size of product at constant size of feed Increasing size of feed at constant reduction ratio ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations A gravity decanter is meant for the separation of two __________ density. Immiscible liquids of same Miscible liquids of same Miscible liquids of different Immiscible liquids of different Immiscible liquids of same Miscible liquids of same Miscible liquids of different Immiscible liquids of different ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Gizzlies are used for separating __________ solids. Any size None of these Coarse Fine Any size None of these Coarse Fine ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Optimum ratio of operating speed to critical speed of a trommel is 0.33-0.45 1.33-1.45 0.5-2 1.5-2.5 0.33-0.45 1.33-1.45 0.5-2 1.5-2.5 ANSWER DOWNLOAD EXAMIANS APP
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