Mechanical Operations Sphericity is the ratio of the surface area of a spherical particle having the same volume as the particle to the surface area of the particle. Which of the following has the maximum value of sphericity? Sphere Cube Cylinder (L/D = 1) Raschig rings Sphere Cube Cylinder (L/D = 1) Raschig rings ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Sphericity for a non-spherical particle is given by (where, V and S are volume and surface area respectively of one particle. and, D = equivalent diameter of particle). V/6D.S V/D.S 6.V/D.S S/V V/6D.S V/D.S 6.V/D.S S/V ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following screens has the maximum capacity? Trommels Vibrating screen Grizzlies Shaking screen Trommels Vibrating screen Grizzlies Shaking screen ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The sphericity of a solid particle of cubical shape is π (π/6)1/3 (π/6)1/2 π/3 π (π/6)1/3 (π/6)1/2 π/3 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following oxides is not present in hematite iron ore? Titanium oxide Manganese oxide Calcium oxide Cobalt oxide Titanium oxide Manganese oxide Calcium oxide Cobalt oxide ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Capacity (in tons/hr) of jaw/gyratory crusher is equal to (where, L = length of the receiving opening, cm S = greater width of the discharge opening, cm) 0.01 L.S L.S L.S/0.087 0.087 L.S 0.01 L.S L.S L.S/0.087 0.087 L.S ANSWER DOWNLOAD EXAMIANS APP
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