Mechanical Operations Which of the following is not used as a surface active agent in a flocculation operation? Alumina Quartz Lime Sodium silicate Alumina Quartz Lime Sodium silicate 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? Cube Sphere Cylinder (L/D = 1) Raschig rings Cube Sphere Cylinder (L/D = 1) Raschig rings ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations With increase in drum speed, in a rotary drum filter, the filtration rate Increases Is not affected Increases linearly Decreases Increases Is not affected Increases linearly Decreases ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following oxides is not present in hematite iron ore? Cobalt oxide Calcium oxide Manganese oxide Titanium oxide Cobalt oxide Calcium oxide Manganese oxide Titanium oxide 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. Neither A nor B Pressure Rate Both A & B Neither A nor B Pressure Rate Both A & B ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The sphericity of a cylinder of 1 mm diameter and length 3 mm is 0.5 0.78 0.6 0.9 0.5 0.78 0.6 0.9 ANSWER DOWNLOAD EXAMIANS APP
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