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? Raschig rings Cylinder (L/D = 1) Cube Sphere Raschig rings Cylinder (L/D = 1) Cube Sphere ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations In a size reduction crushing operation, feed size is 300 to 1500 mm while the product size is 100 to 300 mm. This is a case of the __________ crushing. Ultrafine Fine Secondary Primary Ultrafine Fine Secondary Primary ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The energy consumed by a ball mill depends on All of these The density of the material being ground Its ball load Its speed All of these The density of the material being ground Its ball load Its speed ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Reciprocal of sphericity is termed as the Surface area per unit mass Specific surface ratio Sauter diameter Shape factor Surface area per unit mass Specific surface ratio Sauter diameter Shape factor ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations A screen is said to be blinded, when the Undersizes are retained in oversize fraction Screen capacity is abruptly increased Oversizes are present in undersize fraction Screen is plugged with solid particles Undersizes are retained in oversize fraction Screen capacity is abruptly increased Oversizes are present in undersize fraction Screen is plugged with solid particles ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following may prove unsuitable for filtering volatile liquids? Vacuum filter Gravity filter Centrifugal filter Pressure filter Vacuum filter Gravity filter Centrifugal filter Pressure filter ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS