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) Raschig rings Cube Sphere Cylinder (L/D = 1) Raschig rings Cube Sphere ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Bucket elevators are not suitable for the vertical lifting of __________ materials. Sticky (e.g. clay paste) Fine (e.g. - 200 mesh size coal) Free flowing Small lumpy (e.g. grains and sand) Sticky (e.g. clay paste) Fine (e.g. - 200 mesh size coal) Free flowing Small lumpy (e.g. grains and sand) ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Cake resistance is Independent of pressure drop Important in the beginning of filtration None of these Decreased with the time of filtration Independent of pressure drop Important in the beginning of filtration None of these Decreased with the time of filtration ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Mixing of light fine powder such as insecticides is done by Impact wheels Banbery mixer Kneader Pug mill Impact wheels Banbery mixer Kneader Pug mill ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Basic slag is not ground in Compartment mills Jaw crushers Tube mills Ball mills Compartment mills Jaw crushers Tube mills Ball mills ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The ratio of the area of openings in one screen (Taylor series) to that of the openings in the next smaller screen is None of these 1.5 ?2 1 None of these 1.5 ?2 1 ANSWER DOWNLOAD EXAMIANS APP
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