Mechanical Operations Pebble mills are tumbling mills widely used for grinding in the manufacture of paints & pigments and cosmetic industries, where iron contamination in the product is highly objectionable. Pebbles used in pebble mill are made of Flint or porcelain Stainless steel Bronze Concrete Flint or porcelain Stainless steel Bronze Concrete ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following is a vacuum filter? Rotary disc filter Batch basket centrifuge Tank filter (Nutsch filter) Filter press Rotary disc filter Batch basket centrifuge Tank filter (Nutsch filter) Filter press ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The reduction ratio for grinders is defined as(where, Df and Dp are average diameters of feed and product respectively). Df - Dp Dp/Df None of these Df/Dp Df - Dp Dp/Df None of these Df/Dp ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations In a grinding operation, the limiting particle size is the size of the __________ particle in the sample. Neither A nor B Largest Smallest Either A or B Neither A nor B Largest Smallest Either A or B ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following is a pressure filter? Leaf filter (Moore filter) Rotary drum filter Sand filter Plate and flame filter Leaf filter (Moore filter) Rotary drum filter Sand filter Plate and flame filter ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following is the most suitable for cleaning of fine coal dust (<0.5 mm)? Spiral separator Trough washer Froth floatation Baum jig washer Spiral separator Trough washer Froth floatation Baum jig washer ANSWER DOWNLOAD EXAMIANS APP
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