Related Questions

You are about to install a second IDE hard drive in a PC that has only one IDE adapter. Your first hard drive will still be the boot drive. How should the second drive be configured?
A as a master
B as a secondary
C as a slave
D as a primary
E as auto-select
For achieving maximum capacity of the ball mill, the ball charge should be equal to about __________ percent of the ball mill volume.
A 10
B 25
C 50
D 75
In a ball mill, the volume occupied by the balls (when the mill is stopped) is about __________ percent of the volume of the mill.
A 35
B 50
C 70
D 85
Power required to drive a centrifugal pump is directly proportional to _________ of its impeller.
A Diameter
B Square of diameter
C Cube of diameter
D Fourth power of diameter
The main differentiation factor between tube mill and ball mill is the
A Length to diameter ratio
B Size of the grinding media
C Final product size
D Operating speed
Tube mill compared to ball mill
A Produces finer products
B Is long in comparison with its diameter
C Uses smaller balls
D All of the above
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
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 of the above
The ratio of the indicated power to the shaft power or brake power of the motor or engine required to drive the compressor, is called
A Compressor efficiency
B Volumetric efficiency
C Isothermal efficiency
D Mechanical efficiency
A chain drive transmits __________ power as compared to belt drive.
A More
B Less
C Same
D None of these

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