Related Questions

Trommels employ __________ for screening of materials.
A Fibrous cloth
B Woven wire screen
C Punched plate
D None of these
Trommels separate a mixture of particles depending on their
A Size
B Density
C Wettability
D Electrical & magnetic properties
Routers operate at layer _____. LAN switches operate at layer _____. Ethernet hubs operate at layer _____. Word processing operates at layer _____.
A 3, 3, 1, 7
B 3, 2, 1, none
C 3, 2, 1, 7
D 3, 3, 2, none
E All of the above
Speed of the drum of the rotary vacuum filter normally ranges from __________ rpm.
A 0.1 to 2
B 5 to 7
C 3 to 8
D 8 to 15
A. __________ mill is a revolving mill divided into two or more sections by perforated partitions in which preliminary grinding takes place at one end and the finishing grinding at the discharge end.
A Compartment
B Tube
C Rod
D Pebble
__________ mill is not a revolving mill.
A Pebble
B Compartment
C Cage
D Tube
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
Frame thickness in the plate and frame filter press is normally in the range of __________ inches.
A 0.25 to 4
B 0.25 to 8
C 1 to 5
D 1 to 12
Commercial packed scrubbers are normally designed for a pressure drop range of __________ mm water coloumn per metre of packed height.
A 4-8
B 17-34
C 52-68
D 88-105
The general range of speed in revolutions per minute (rpm) at which floppy disks rotate is
A 2400-4700
B 390-600
C 150-250
D 300-600
E None of the above

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