Ball mill is used for__________________?
Ball mill is used for__________________?
A. Crushing
B. Coarse grinding
C. Fine grinding
D. Attrition
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The opening of a 200 mesh screen (Taylor series) is__________________?
The opening of a 200 mesh screen (Taylor series) is__________________?A. 0.0074 cm
B. 0.0074 mm
C. 0.0047 cm
D. 74 milli-micronsMaximum size reduction in a ball mill is done by the, ______________ action?
Maximum size reduction in a ball mill is done by the, ______________ action?A. Attrition
B. Compression
C. Impact
D. CuttingWhich of the following is a pressure filter ?
Which of the following is a pressure filter ?A. Leaf filter (Moore filter)
B. Plate and flame filter
C. Rotary drum filter
D. Sand filterCoal is finally pulverised to 200 mesh size for burning in boilers by a___________________?
Coal is finally pulverised to 200 mesh size for burning in boilers by a___________________?A. Hammer crusher
B. Ball mill
C. Roll crusher
D. Gyratory crusherWhich of the following screens has the maximum capacity ?
Which of the following screens has the maximum capacity ?A. Grizzlies
B. Trommels
C. Shaking screen
D. Vibrating screenDry powdery solid materials are transported by a ______________ conveyor?
Dry powdery solid materials are transported by a ______________ conveyor?A. Belt
B. Bucket
C. Screw
D. None of these