Mechanical Operations Trommels are revolving screens which normally operate in the range of __________ rpm. 15 - 20 60 - 75 40 - 50 43832 15 - 20 60 - 75 40 - 50 43832 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations A screen is said to be blinded, when the Screen capacity is abruptly increased Oversizes are present in undersize fraction Screen is plugged with solid particles Undersizes are retained in oversize fraction Screen capacity is abruptly increased Oversizes are present in undersize fraction Screen is plugged with solid particles Undersizes are retained in oversize fraction 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 Tailing Middling None of these Concentrate Tailing Middling ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The specific cake resistance for incompressible sludges is (where ΔP = pressure drop over cake) ∝ ΔP ∝ √ΔP Independent of ΔP ∝ 1/ ΔP ∝ ΔP ∝ √ΔP Independent of ΔP ∝ 1/ ΔP ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Screen capacity is not a function of Screening mechanism Screening surface Atmospheric humidity Its openings size Screening mechanism Screening surface Atmospheric humidity Its openings size ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following parts of a jaw crusher is subjected to maximum wear and tear during its operation? Toggles Crush shaft Jaw plates Check plates Toggles Crush shaft Jaw plates Check plates ANSWER DOWNLOAD EXAMIANS APP
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