Mechanical Operations What is the critical rotation speed in revolutions per second, for a ball mill of 1.2 m diameter charged with 70 mm dia balls? 0.5 0.66 1 2.76 0.5 0.66 1 2.76 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Angle of nip of the crushing rolls does not depend upon the Feed size Diameter of the rolls Product size Speed of the rolls Feed size Diameter of the rolls Product size Speed of the rolls ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Additives used for promoting the floccula-tion of particles is a/an Both A & B Neither A nor B Electrolyte Surface active agent Both A & B Neither A nor B Electrolyte Surface active agent ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Tank filter (e.g., Nutsch filter) is A continuous filter Used for small scale filtration work A high pressure filter A leaf filter A continuous filter Used for small scale filtration work A high pressure filter A leaf filter ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The capacity of a gyratory crusher is __________ that of a jaw crusher with the same gape, handling the same feed & for the same product size range. 5 times 2.5 times 10 times Same as 5 times 2.5 times 10 times Same as ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The power number for a stirred tank becomes constant at high Reynolds number. In this limit, the variation of power input with impeller rotational speed (N) is proportional to N¹ N³ N° N² N¹ N³ N° N² ANSWER DOWNLOAD EXAMIANS APP
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