Mechanical Operations Mixing of plastic solids is generally facilitated by Dispersion Mastication None of these Kneading Dispersion Mastication None of these Kneading ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Agglomeration of individual particles into clusters (flocs) is called flocculation. To prevent flocculation, the most commonly used dispersing agents are Sulphates Silicates & phosphates Carbonates Bi-carbonates Sulphates Silicates & phosphates Carbonates Bi-carbonates ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Dust collection efficiency of electrostatic precipitator can be as high as 99.9%. Maximum temperature and pressure of dust laden gas that can be cleaned in an electrostatic precipitator is respectively. 1000°C and 500 atm 200°C and 5 atm 500°C and 50 atm 1000°C and 10 atm 1000°C and 500 atm 200°C and 5 atm 500°C and 50 atm 1000°C and 10 atm ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations During filtration operation, the filtrate encounters the resistance of the Filter medium Cake All of these Channel carrying the slurry to the upstream side of the cake and filtrate away from the filter medium Filter medium Cake All of these Channel carrying the slurry to the upstream side of the cake and filtrate away from the filter medium ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations A centrifugal filtration unit operating at a rotational speed of w has inner surface of the liquid (density ρL) located at a radial distance R from the axis of rotation. The thickness of the liquid film is δ and no cake is formed. The initial pressure drop during filtration is ½w² . δρL (2R + δ) ½w² . R² . ρL ½w² . δ² . ρL ½w² . R . ρL(R + 2δ) ½w² . δρL (2R + δ) ½w² . R² . ρL ½w² . δ² . ρL ½w² . R . ρL(R + 2δ) ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Tabular bowl centrifuges as compared to disk bowl centrifuges Operate at higher speed Can not be operated under pressure/vacuum Can't be used for separation of fine suspended solids from a liquid Employ bowl of larger diameter Operate at higher speed Can not be operated under pressure/vacuum Can't be used for separation of fine suspended solids from a liquid Employ bowl of larger diameter ANSWER DOWNLOAD EXAMIANS APP
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