Mechanical Operations A 30% (by volume) suspension of spherical sand particles in a viscous oil has a hindered settling velocity of 4.44 μm/s. If the Richardson Zaki hindered settling index is 4.5, then the terminal velocity of a sand grain is 0.90 μm/s 1 μm/s 0.02 μm/s 22.1 μm/s 0.90 μm/s 1 μm/s 0.02 μm/s 22.1 μm/s ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations In the cyclone separator used for separation of dust from dust laden gas, the gas Develops a helical motion inside the chamber Enters the cyclone from the top Is admitted tangentially at high velocity Both B and C Develops a helical motion inside the chamber Enters the cyclone from the top Is admitted tangentially at high velocity Both B and C ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Reciprocal of sphericity is termed as the Specific surface ratio Sauter diameter Surface area per unit mass Shape factor Specific surface ratio Sauter diameter Surface area per unit mass Shape factor ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations In case of grinding in a ball mill Grinding cost and power requirement increases with increasing fineness of the products Its capacity decreases with increasing fineness of the products All of these Wet grinding achieves a finer product size than dry grinding Grinding cost and power requirement increases with increasing fineness of the products Its capacity decreases with increasing fineness of the products All of these Wet grinding achieves a finer product size than dry grinding ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations __________ mill is not used for grinding wheat into flour and for milling of cereals & other vegetable products. Roller Pebble Attrition Buhrstone Roller Pebble Attrition Buhrstone ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Grindability of a material does not depend upon its Hardness Size Toughness Elasticity Hardness Size Toughness Elasticity ANSWER DOWNLOAD EXAMIANS APP
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