_____________ mills are termed as impactors?
_____________ mills are termed as impactors?
A. Hammer
B. Cage
C. Rolling-compression
D. None of these
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Grindability of a material does not depend upon its_____________________?
Grindability of a material does not depend upon its_____________________?A. Elasticity
B. Hardness
C. Toughness
D. SizeFor a non-spherical particle, the sphericity__________________?
For a non-spherical particle, the sphericity__________________?A. Is defined as the ratio of surface area of a sphere having the same volume as the particle to the
actual surface area of the particle
B. Has the dimension of length
C. Is always less than 1
D. Is the ratio of volume of a sphere having the same surface area as the particle to the actual
volume of the particleMoore filter is a ______________ filter ?
Moore filter is a ______________ filter ?A. Leaf
B. Press
C. Rotary
D. SandWhich of the following is not an ultrafine grinder (colloid mill) ?
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 classificationWhich of the following clay mixing devices is vacuum operated for deairation of clay ?
Which of the following clay mixing devices is vacuum operated for deairation of clay ?A. Banbury mixer
B. Pug mill
C. Muller-mixer
D. None of theseA _______________ employs a set of screen across a flow channel for the separation of dirt/rust from a flowing liquid stream?
A _______________ employs a set of screen across a flow channel for the separation of dirt/rust from a flowing liquid stream?A. Thickener
B. Classifier
C. Strainer
D. Clarifier