Mechanical Operations Helical screw agitator is used for Mixing highly viscous pastes Mixing liquids at very high temperature (> 250 °C) Blending immiscible liquids None of these Mixing highly viscous pastes Mixing liquids at very high temperature (> 250 °C) Blending immiscible liquids None of these 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 Raschig rings Sphere Cylinder (L/D = 1) Cube Raschig rings Sphere Cylinder (L/D = 1) ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Energy requirement (per unit mass of material crushed/ground) is highest for Jaw crusher Rod mill Ball mill Fluid energy mill Jaw crusher Rod mill Ball mill Fluid energy mill ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations increasing the capacity of a screen __________ the screen effectiveness. None of these Increases Does not effect Decreases None of these Increases Does not effect Decreases ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following may prove unsuitable for filtering volatile liquids? Pressure filter Vacuum filter Centrifugal filter Gravity filter Pressure filter Vacuum filter Centrifugal filter Gravity filter ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Activators are those chemicals which help buoying up one mineral in preference to the other in the froth floatation process. Which of the following is an activator? Sodium carbonate Cresylic acid Calcium carbonate Copper sulphate Sodium carbonate Cresylic acid Calcium carbonate Copper sulphate ANSWER DOWNLOAD EXAMIANS APP
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