A. Pressure filter
B. Vacuum filter
C. Centrifugal filter
D. Coagulant
Mechanical Operations
Mechanical Operations
A. Crushing takes place by impact breaking
B. Maximum acceptable feed size is 30 cms
C. Reduction ratio can be varied by adjusting the distance from cage to hammers
D. All A., B. and C.
A. Recovery/rejection
B. Recovery
C. Rejection
D. None of these
A. Flight
B. Slat or drag
C. Ribbon
D. Screw
A. Np ∝ NRe
B. Np ∝ √NRe
C. Np → constant
D. Np ∝ 1/NRe
A. 3.6 AVS.ρ
B. 3.6 A.V.ρ
C. 3.6 A.S. ρ
D. 3.6 AVS/ρ
Answer: Option
A. Tube mill
B. Ball mill
C. Jaw crusher
D. Jet pulveriser
A. Decreasing size of product at constant size of feed
B. Decreasing machine capacity
C. Increasing size of feed at constant reduction ratio
D. None of these
A. Bronze
B. Stainless steel
C. Flint or porcelain
D. Concrete
A. Grinding element & the housing
B. Feed particles
C. Both A. and B.
D. Neither A. nor B.
