Mechanical Operations In a grinding operation, the limiting particle size is the size of the __________ particle in the sample. Largest Neither A nor B Smallest Either A or B Largest Neither A nor B Smallest Either A or B 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 . R² . ρL ½w² . R . ρL(R + 2δ) ½w² . δρL (2R + δ) ½w² . δ² . ρL ½w² . R² . ρL ½w² . R . ρL(R + 2δ) ½w² . δρL (2R + δ) ½w² . δ² . ρL ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Temperature of the product during ultrafine grinding May increase or decrease ; depends on the material being ground Decreases Increases Remains constant May increase or decrease ; depends on the material being ground Decreases Increases Remains constant ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations During agitation of liquids, power consumption during laminar flow is not proportional to the Density of the liquid Square of rotational speed Cube of impeller diameters Viscosity of the liquid Density of the liquid Square of rotational speed Cube of impeller diameters Viscosity of the liquid ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations What is the critical rotation speed in revolutions per second, for a ball mill of 1.2 m diameter charged with 70 mm dia balls? 0.5 0.66 2.76 1 0.5 0.66 2.76 1 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The most suitable equipment used to devulcanise rubber scrap and to make water dispersion & rubber solution is a Sharpies centrifuge Propeller agitator Boundary mixer None of these Sharpies centrifuge Propeller agitator Boundary mixer None of these ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS