Mechanical Operations For spheres, the surface shape factor is given by (where, A = area, V = volume, and D = diameter) AD/V π(=A/D²) π/6(=V/D³) None of these AD/V π(=A/D²) π/6(=V/D³) None of these ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The study on washability of coal is done by using the __________ technique. Heavy media separation Tabling None of these Elutriation Heavy media separation Tabling None of these Elutriation ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The opening of a 200 mesh screen (Taylor series) is 0.0047 cm 0.0074 cm 74 mili-microns 0.0074 mm 0.0047 cm 0.0074 cm 74 mili-microns 0.0074 mm ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations A propeller agitator All of these Produces mainly axial flow Runs at very slow speed (2 rpm) Is used for mixing high viscosity pastes All of these Produces mainly axial flow Runs at very slow speed (2 rpm) Is used for mixing high viscosity pastes ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Additives used for promoting the floccula-tion of particles is a/an Neither A nor B Surface active agent Electrolyte Both A & B Neither A nor B Surface active agent Electrolyte Both A & B ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The controlling resistance in a rotary drum vacuum filter is the __________ resistance. None of these Piping Filter medium Cake None of these Piping Filter medium Cake ANSWER DOWNLOAD EXAMIANS APP