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 Concrete Bronze Stainless steel Flint or porcelain Concrete Bronze Stainless steel ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Optimum ratio of operating speed to critical speed of a trommel is 0.33-0.45 0.5-2 1.5-2.5 1.33-1.45 0.33-0.45 0.5-2 1.5-2.5 1.33-1.45 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following is a pressure filter? Plate and flame filter Rotary drum filter Leaf filter (Moore filter) Sand filter Plate and flame filter Rotary drum filter Leaf filter (Moore filter) Sand filter ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations A suspension of glass beads in ethylene glycol has a hindered settling velocity of 1.7 mm/s, while the terminal settling velocity of a single glass bead in ethylene glycol is 17 mm/s. If the Richardson-Zaki hindered settling index is 4.5, the volume fraction of solids in the suspension is 0.1 0.6 0.4 None of these 0.1 0.6 0.4 None of these ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Gizzlies are used for separating __________ solids. Coarse Fine None of these Any size Coarse Fine None of these Any size ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Agglomeration of individual particles into clusters (flocs) is called flocculation. To prevent flocculation, the most commonly used dispersing agents are Carbonates Bi-carbonates Silicates & phosphates Sulphates Carbonates Bi-carbonates Silicates & phosphates Sulphates ANSWER DOWNLOAD EXAMIANS APP
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