A. Operate at higher speed
B. Employ bowl of larger diameter
C. Can’t be operated under pressure/vacuum
D. Can’t be used for separation of fine suspended solids from a liquid
Related Mcqs:
- Ultra centrifuges are used for the separation of _____________ solid particles?
A. Coarse
B. Fine
C. Colloidal
D. Dissolved - Shell and leaf filter as compared to plate and frame filter _____________________?
A. Entails less labor cost
B. Facilitates filtration under higher pressure
C. Provides more effective washing
D. All A., B. & C. - Gyratory crushers compared to the reciprocating jaw crushers__________________?
A. Have greater capacity per unit of discharge area
B. Crush intermittently
C. Are less suitable for coarse materials
D. Have less steady power consumption - In case of a revolving mill, wet grinding compared to dry grinding__________________?
A. Requires more energy
B. Has less capacity
C. Complicates handling & classification of the product
D. None of these - Tube mill compared to ball mill_______________________?
A. Produces finer products
B. Is long in comparison with its diameter
C. Uses smaller balls
D. All A., B. & C. - Wet grinding in a revolving mill ______________ as compared to dry grinding ?
A. Gives less wear on chamber walls
B. Requires more energy
C. Increases capacity
D. Complicates handling of the product - A tube mill as compared to a ball mill__________________?
A. Employs smaller balls
B. Gives finer size reduction but consumes more power
C. Has larger length/diameter ratio (>2 as compared to 1 for ball mill)
D. All A., B. and C. - Choke crushing (in case of a Jaw crusher) compared to free crushing__________________?
A. Results in increased capacity
B. Consumes less power
C. Consumes more power
D. Both A. and C. - In closed circuit grinding as compared to open circuit grinding, the_________________?
A. Specific surface of product is more
B. Product has lesser size uniformity
C. Production rate at a given limiting size is lower
D. Operation is economical - A tube mill compared to a ball mill__________________?
A. Has a higher length/diameter ratio
B. Produces a coarser product
C. Has a higher diameter/length ratio
D. Uses much larger balls
