A. Classification
B. Tabling
C. Jigging
D. Froth floatation
Related Mcqs:
- Fluid medium used in the classification technique of mineral beneficiation is_________________?
A. Air
B. Water
C. Either A. or B.
D. Neither A. nor B. - Removal of activated carbon from glycerine is done by _________________?
A. Plate and frame filter
B. Rotary vacuum filter
C. Batch basket centrifuge
D. None of these - Size reduction of fibrous materials like wood, asbestos, mica etc. is done by a disintegrator exemplified by the _________________?
A. Blake jaw crusher
B. Cage mill
C. Stamp mill
D. Bradford’s breaker - To get ultrafine particles, the equipment used is a _________________?
A. Ball mill
B. Rod mill
C. Hammer crusher
D. Fluid energy mill - The capacity of a classifier in ‘tons of solid/hr’ is given by (where, A = cross-sectional area in m2, V = rising velocity of fluid in m/sec, S = percentage of solids in the suspension by volume, ρ = density of solids in kg/m3)_________________?
A. 3.6 AVS.ρ
B. 3.6 A.V.ρ
C. 3.6 A.S. ρ
D. 3.6 AVS/ρ
Answer: Option - Sphericity of raschig ring (whose length and diameter are equal) is___________________?
A. > 1
B. < 1
C. 1
D. 2 - 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)
D. 2π. √(g/r) - Size reduction of ice and gypsum can be accomplished suitably by a _______________ crusher?
A. Blake jaw
B. Toothed roll
C. Gyratory
D. None of these - Which of the following achieves the least reduction ratio for a given feed size ?
A. Jaw crusher
B. Roll crusher
C. Cone crusher
D. Gyratory crusher - Wheat is ground into flour in a___________________?
A. Hammer crusher
B. Roller crusher
C. Impact mill
D. Fluid energy mill
