Mechanical Operations In a size reduction crushing operation, feed size is 100 to 300 mm. while the product size is 10 to 50 mm. This is a case of the __________ crushing. Fine Secondary Ultrafine Primary Fine Secondary Ultrafine Primary ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Size measurement of ultrafine particles can be best expressed in terms of Screen size Micron Surface area per unit mass Centimetre Screen size Micron Surface area per unit mass Centimetre ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The equivalent diameter of channel of a constant non-circular cross-section of 3 cm by 6 cm will be __________ cms. 2 12 8 20 2 12 8 20 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Trommels are revolving screens which normally operate in the range of __________ rpm. 40 - 50 60 - 75 43832 15 - 20 40 - 50 60 - 75 43832 15 - 20 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations __________ are mixed using ribbon blenders. Dry powders High viscosity liquids Thick pastes Lumpy solids and low viscosity liquids Dry powders High viscosity liquids Thick pastes Lumpy solids and low viscosity liquids ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations A tube mill as compared to a ball mill Gives finer size reduction but consumes more power Employs smaller balls Has larger length/diameter ratio (>2 as compared to 1 for ball mill) All of these Gives finer size reduction but consumes more power Employs smaller balls Has larger length/diameter ratio (>2 as compared to 1 for ball mill) All of these ANSWER DOWNLOAD EXAMIANS APP
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