Mechanical Operations __________ mills are termed as impactors. Cage None of these Rolling-compression Hammer Cage None of these Rolling-compression Hammer ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations In coal washeries, three products namely the valuable product (i.e. clean/washed coal), discarded product (i.e. mineral matter) and an additional concentrated product called __________ is produced. None of these Concentrate Middling Tailing None of these Concentrate Middling Tailing ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following is the most suitable for cleaning of fine coal dust (<0.5 mm)? Froth floatation Spiral separator Trough washer Baum jig washer Froth floatation Spiral separator Trough washer Baum jig washer ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations At low Reynold's number, the power (P) required for agitating a fluid in a stirred tank becomes independent of inertial forces. In this limit, indicate which of the following relations is satisfied: Po = ρ/ρN3 D5 : Power number Re = ρ N D2/μ: Reynold's number N is the impeller rotational speed, and D is the impeller diameter. Po ∝ Re1.0 Po ∝ Re0.5 Po ∝ Re-1.0 Po ∝ Re0.0 Po ∝ Re1.0 Po ∝ Re0.5 Po ∝ Re-1.0 Po ∝ Re0.0 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Fick's law relates to Final particle size Feed size Energy consumption None of these Final particle size Feed size Energy consumption None of these ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Soft & non-abrasive materials can be made into fines by Attrition Cutting Compression None of these Attrition Cutting Compression None of these ANSWER DOWNLOAD EXAMIANS APP
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