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.Management Sciences
Category: Mechanical Operations
Which of the following is a fine crusher ?
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A. Blake jaw crusher
B. Gyratory crusher
C. Toothed roll crusher
D. Dodge jaw crusher
To remove very small amount of tiny solid impurities from liquid, we use a_____________________?
A. Pressure filter
B. Vacuum filter
C. Centrifugal filter
D. Coagulant
Molten ammonium nitrate is mixed with ground limestone in fertilizer plant in a__________________?
A. Pug mill
B. Mixer-extruder
C. Banbury mixer
D. Muller mixer
In case of a ball mill ?
A. Coarse feed requires a larger ball
B. Fine feed requires a larger ball
C. Operating speed should be more than the critical speed
D. None of these
______________ is used for producing a thick suspension from a thin slurry?
A. Cartridge filter
B. Rotary drum vacuum filter
C. Pressure filter thickener
D. Plate and frame filter press
Horsepower required for a roll crusher is directly proportional to its__________________?
A. Reduction ratio
B. Capacity
C. Both A. & B.
D. Neither A. nor B.
Which of the following screens has the maximum capacity ?
A. Grizzlies
B. Trommels
C. Shaking screen
D. Vibrating screen
Highly viscous liquids & pastes are agitated by________________?
A. Propellers
B. Turbine agitators
C. Multiple blade paddles
D. None of these
Out of the following size reduction equipments, the maximum feed size can be accepted by the__________________?
A. Tube mill
B. Ball mill
C. Jaw crusher
D. Jet pulveriser
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