Mechanical Operations Sizing of very fine particles of the order of 5 to 10 microns is done by elutriation, which is a __________ operation. Sedimentation Flocculation Classification Clarification Sedimentation Flocculation Classification Clarification ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Height of liquid in agitation tank is normally maintained equal to the tank diameter. However, if the tank is too tall and a large liquid hold up is desired, then two or more impellers mounted on the same shaft may be used. The clearance between the tank bottom and the bottom most impeller should be about (where, D = impeller diameter) D 1.5 D 0.5 D 2 D D 1.5 D 0.5 D 2 D ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Cement clinker is reduced to fine size by a Ball mill Hammer mill Roll crusher Tube mill Ball mill Hammer mill Roll crusher Tube mill ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations For crushing of solids, the Rittinger's law states that the work required for crushing is proportional to The change in volume due to crushing The new surface created None of these The size reduction ratio The change in volume due to crushing The new surface created None of these The size reduction ratio ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations In the cyclone separator used for separation of dust from dust laden gas, the gas Enters the cyclone from the top Both B and C Is admitted tangentially at high velocity Develops a helical motion inside the chamber Enters the cyclone from the top Both B and C Is admitted tangentially at high velocity Develops a helical motion inside the chamber ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations A screen is said to be blinded, when the Screen capacity is abruptly increased Undersizes are retained in oversize fraction Oversizes are present in undersize fraction Screen is plugged with solid particles Screen capacity is abruptly increased Undersizes are retained in oversize fraction Oversizes are present in undersize fraction Screen is plugged with solid particles ANSWER DOWNLOAD EXAMIANS APP
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