A. All the resistances are constant
B. Filter medium resistance increases
C. Filter medium resistance decreases
D. Cake resistance decreases
During the washing of cake_________________? Read More »
Mechanical Operations A. Hammer
B. Cage
C. Rolling-compression
D. None of these
_____________ mills are termed as impactors? Read More »
Mechanical Operations A. Impact
B. Attrition
C. Compression
D. Cutting
For coarse reduction of hard solids, use ____________________? Read More »
Mechanical Operations A. P/m = K/ √Dp
B. P/m = K . ln D̅ sa/D̅ sb
C. P/m = K . (1/ D̅ sb – 1/D̅ sa)
D. None of these
A. Pebble
B. Compartment
C. Cage
D. Tube
______________ mill is not a revolving mill ? Read More »
Mechanical Operations A. Tailing
B. Heading
C. Concentrate
D. Middling
The crushed material received for separation is called feed or_________________? Read More »
Mechanical Operations A. A batch filter
B. Not suitable, if the liquid is the main product
C. Having prohibitively high maintenance cost
D. Not suitable for wide range of materials under varying operating conditions of cake thickness
and pressure
A filter press is___________________? Read More »
Mechanical Operations A. P. gc/n3. D2. ρ
B. P. gc. ρ/μ2
C. n3. D3. ρ/P. gc
D. P. gc/n2. D2. ρ
A. Calcite
B. Pyrite
C. Quartz
D. Galena
Pick out the material having minimum Rittinger’s number? Read More »
Mechanical Operations A. Hammer crusher
B. Roller crusher
C. Impact mill
D. Fluid energy mill
Wheat is ground into flour in a___________________? Read More »
Mechanical Operations