Mechanical Operations Separation of particles of various sizes, shapes and densities by allowing them to settle in a fluid is called Froth floatation Clarification Classification Thickening Froth floatation Clarification Classification Thickening ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Number of particles in a crushed solid sample is given by (where, m = mass of particles in a sample, Vp = volume of one particle, ρ= density of particles) M/ρ . Vp M . Vp/ρ M . ρ/Vp Vp/m . ρ M/ρ . Vp M . Vp/ρ M . ρ/Vp Vp/m . ρ ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following is not used as a surface active agent in a flocculation operation? Sodium silicate Lime Alumina Quartz Sodium silicate Lime Alumina Quartz ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The cake resistance increases steadily with the time of filtration in a plate and frame filter employing constant __________ filtration. Pressure Neither A nor B Rate Both A & B Pressure Neither A nor B Rate Both A & B ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Grindability of a material does not depend upon its Hardness Toughness Size Elasticity Hardness Toughness Size Elasticity ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations A propeller agitator Is used for mixing high viscosity pastes All of these Runs at very slow speed (2 rpm) Produces mainly axial flow Is used for mixing high viscosity pastes All of these Runs at very slow speed (2 rpm) Produces mainly axial flow ANSWER DOWNLOAD EXAMIANS APP
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