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? Cylinder (L/D = 1) Cube Raschig rings Sphere Cylinder (L/D = 1) Cube Raschig rings Sphere ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations A straight line is obtained on plotting reciprocal of filtration rate vs. the volume of filtrate for __________ flow of filtrate. Incompressible cake and laminar Compressible cake and turbulent Incompressible cake and turbulent Compressible cakes and laminar Incompressible cake and laminar Compressible cake and turbulent Incompressible cake and turbulent Compressible cakes and laminar ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Run of mine (ROM) coal is crushed by a __________ for use in domestic ovens. Hammer crusher Ball mill Jaw crusher Tube mill Hammer crusher Ball mill Jaw crusher Tube mill ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following is the most suitable for cleaning of fine coal dust (<0.5 mm)? Trough washer Baum jig washer Spiral separator Froth floatation Trough washer Baum jig washer Spiral separator Froth floatation ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Arrange the following size reduction equipment in the decreasing order of the average particle size produced by each of them. Jaw crusher, Ball mill, Fluid energy mill Ball mill, Jaw crusher, Fluid energy mill Fluid energy mill, Ball mill, Jaw crusher Fluid energy mill, Jaw crusher, Ball mill Jaw crusher, Ball mill, Fluid energy mill Ball mill, Jaw crusher, Fluid energy mill Fluid energy mill, Ball mill, Jaw crusher Fluid energy mill, Jaw crusher, Ball mill ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Use of baffles in agitators help in minimising the __________ tendency. Vortexing Neither A nor B Both A & B Swirling Vortexing Neither A nor B Both A & B Swirling ANSWER DOWNLOAD EXAMIANS APP
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