Related Questions

The main size reduction operation in ultrafine grinders is
A Cutting
B Attrition
C Compression
D Impact
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
Size measurement of ultrafine particles can be best expressed in terms of
A Centimetre
B Screen size
C Micron
D Surface area per unit mass
Temperature of the product during ultrafine grinding
A Increases
B Decreases
C Remains constant
D May increase or decrease ; depends on the material being ground
For the transportation of ultrafine particles, the equipment used is a........conveyor.
A Belt
B Pneumatic
C Screw
D None of these
To get ultrafine particles, the equipment used is a
A Ball mill
B Rod mill
C Hammer crusher
D Fluid energy mill
Which of the following size reduction equipments employs mainly attrition for ultrafine grinding?
A Jet mills
B Fluid energy mill
C Micronizer
D All of the above
Which of the following is not an ultrafine grinder (colloid mill)?
A Micronizers
B Agitated mills and fluid energy mills
C Toothed roll crusher
D Hammer mills with internal classification
In centre less grinders, the maximum angular adjustment of the regulating wheel is
A 5°
B 10°
C 15°
D 20°
In centerless grinders, the regulating wheel is inclined at
A 0° to 8°
B 9° to 15°
C 16° to 20°
D 21° to 25°

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