Mechanical Operations Tabular bowl centrifuges as compared to disk bowl centrifuges Can not be operated under pressure/vacuum Employ bowl of larger diameter Can't be used for separation of fine suspended solids from a liquid Operate at higher speed Can not be operated under pressure/vacuum Employ bowl of larger diameter Can't be used for separation of fine suspended solids from a liquid Operate at higher speed ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Colloidal mills are used for __________ grinding. Intermediate Fine Coarse Ultrafine Intermediate Fine Coarse Ultrafine ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations increasing the capacity of a screen __________ the screen effectiveness. Does not effect None of these Increases Decreases Does not effect None of these Increases Decreases 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 0.5 D 1.5 D 2 D D 0.5 D 1.5 D 2 D ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Size reduction of moulding powders, waxes, resins & gums are done in a __________ mill. Hammer Cage Neither A nor B Both A & B Hammer Cage Neither A nor B Both A & B ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations __________ conveyors are also called scrapers. Helical flight Both B & C Screw Apron Helical flight Both B & C Screw Apron ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS