Mechanical Operations Reciprocating screens are normally inclined at an angle of 5° with the horizontal and employ gyratory motion at feed end & reciprocating motion at the discharge end. They are not suitable for the screening of the Light metal powder down upto 4 meshsize Dry chemicals Powdered food & granular materials Heavy tonnages of rocks or gravel Light metal powder down upto 4 meshsize Dry chemicals Powdered food & granular materials Heavy tonnages of rocks or gravel ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Screen capacity is not a function of Screening mechanism Atmospheric humidity Its openings size Screening surface Screening mechanism Atmospheric humidity Its openings size Screening surface ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations For grinding of cereals, grains, spices, pigments, saw dust, cork etc., the most extensively used size reduction equipment is a Buhrstone mill Hammer mill Crushing rolls Ball mill Buhrstone mill Hammer mill Crushing rolls Ball mill ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The equivalent diameter of channel of a constant non-circular cross-section of 3 cm by 6 cm will be __________ cms. 2 8 12 20 2 8 12 20 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Froth floatation is the most suitable for treating Iron ores Sulphide ores None of these Quartzite Iron ores Sulphide ores None of these Quartzite ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The specific cake resistance for incompressible sludges is (where ΔP = pressure drop over cake) ∝ ΔP Independent of ΔP ∝ 1/ ΔP ∝ √ΔP ∝ ΔP Independent of ΔP ∝ 1/ ΔP ∝ √ΔP ANSWER DOWNLOAD EXAMIANS APP
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