200 mesh sieve size corresponds to _____________ microns?
200 mesh sieve size corresponds to _____________ microns?
A. 24
B. 74
C. 154
D. 200
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Ribbon blenders are exclusively meant for __________________?
Ribbon blenders are exclusively meant for __________________?A. Blending miscible liquids
B. Non-flowing powder and thin pastes
C. Bath mixing
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Which of the following crushing laws is most accurately applicable to the fine grinding of materials ?A. Bond’s crushing law
B. Kick’s law
C. Rittinger’s law
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As particle size is reduced__________________?A. Screening becomes progressively more difficult
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Critical speed of rotation, N (in rps – rotation per second) of a trammel is equal to (where, g = acceleration due to gravity = 9.81 m/sec2 and, r = radius of trammel, metre.) ?A. (1/2π). √(g/r)
B. (1/π). √(g/r)
C. ½ √(g/r)
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C. Cage mill
D. Rod mill