Mechanical Operations Ultra centrifuges are used for the separation of __________ solid particles. Fine Dissolved Coarse Colloidal Fine Dissolved Coarse Colloidal ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The grinding in a hammer crusher takes place due to the Impact Attrition Both A & B Neither A nor B Impact Attrition Both A & B Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following is not used as a filter medium in case of corrosive liquids? Cotton fabric Glass cloth Metal cloth of monel or stainless steel Nylon Cotton fabric Glass cloth Metal cloth of monel or stainless steel Nylon ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Theoretical capacity of crushing rolls in tons/hr is given by (where, V = peripherial velocity, m/sec. W = width of rolls, m Dr = distance between rolls ρ = density of material to be crushed, kg/m³ here, V =πN.D where, N = speed of the rolls in rotation per second (rps) D = diameter of rolls, m) 3.6 V.W.Dr.ρ 3.6 V.W.Dr/ρ 3.6 V.W. ρ 3.6 W.Dr.ρ 3.6 V.W.Dr.ρ 3.6 V.W.Dr/ρ 3.6 V.W. ρ 3.6 W.Dr.ρ 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) Raschig rings Sphere Cube Cylinder (L/D = 1) Raschig rings Sphere Cube ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Froth floatation is the most suitable for treating Quartzite None of these Iron ores Sulphide ores Quartzite None of these Iron ores Sulphide ores ANSWER DOWNLOAD EXAMIANS APP