For coarse reduction of hard solids, use ____________________?
For coarse reduction of hard solids, use ____________________?
A. Impact
B. Attrition
C. Compression
D. Cutting
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Sedimentation on commercial scale occurs in____________________?
Sedimentation on commercial scale occurs in____________________?A. Classifiers
B. Thickeners
C. Rotary drum filters
D. CyclonesUltra centrifuges are used for the separation of _____________ solid particles?
Ultra centrifuges are used for the separation of _____________ solid particles?A. Coarse
B. Fine
C. Colloidal
D. DissolvedWeber number is significant and is concerned with the_________________?
Weber number is significant and is concerned with the_________________?A. Solid-liquid mixing
B. Liquid-liquid mixing
C. Dispersion of liquid in liquid
D. Suspension of solid in liquidWhich of the following is the hardest material ?
Which of the following is the hardest material ?A. Calcite
B. Quartz
C. Corundum
D. GypsumA compressible cake has the_________________?
A compressible cake has the_________________?A. Maximum porosity at the upstream side
B. Maximum porosity at the filter medium
C. Same porosity throughout the cake thickness
D. None of thesePercentage of drum submerged in the slurry in case of rotary drum filter is ________________?
Percentage of drum submerged in the slurry in case of rotary drum filter is ________________?A. 3
B. 30
C. 85
D. 25