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) L.S/0.087 0.01 L.S L.S 0.087 L.S L.S/0.087 0.01 L.S L.S 0.087 L.S ANSWER DOWNLOAD EXAMIANS APP
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? Cylinder (L/D = 1) Cube Sphere Raschig rings Cylinder (L/D = 1) Cube Sphere Raschig rings ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations For efficient grinding, ball mills must be operated With minimum possible small balls At a speed less than the critical speed At a speed more than the critical speed At a speed equal to the critical speed With minimum possible small balls At a speed less than the critical speed At a speed more than the critical speed At a speed equal to the critical speed 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 ∝ Re0.5 Po ∝ Re-1.0 Po ∝ Re0.0 Po ∝ Re1.0 Po ∝ Re0.5 Po ∝ Re-1.0 Po ∝ Re0.0 Po ∝ Re1.0 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Chance process is used for the Concentration of pyrites Water treatment Cleaning of coal Concentration of iron ore Concentration of pyrites Water treatment Cleaning of coal Concentration of iron ore ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following is the most suitable for cleaning of fine coal dust (<0.5 mm)? Baum jig washer Trough washer Froth floatation Spiral separator Baum jig washer Trough washer Froth floatation Spiral separator ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS