200 mesh screen means 200 openings per_____________________?
200 mesh screen means 200 openings per_____________________?
A. cm2
B. cm
C. inch
D. inch2
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In a roll crusher, the specific power consumption and the production rate is affected by the_________________?
In a roll crusher, the specific power consumption and the production rate is affected by the_________________?A. Reduction ratio
B. Differential roll speed
C. Both A. and B.
D. Neither A. nor B.Wet sieving is employed, when the product contains ________________ materials?
Wet sieving is employed, when the product contains ________________ materials?A. Abrasive
B. Large quantity of very fine
C. Coarse
D. Non-stickyDuring agitation of liquids, power consumption during laminar flow is not proportional to the ________________?
During agitation of liquids, power consumption during laminar flow is not proportional to the ________________?A. Density of the liquid
B. Viscosity of the liquid
C. Cube of impeller diameters
D. Square of rotational speedPercentage 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. 25Ore concentration by jigging is based on the difference in the ______________ of the particles?
Ore concentration by jigging is based on the difference in the ______________ of the particles?A. Specific gravities
B. Wettability
C. Shape
D. None of theseDust collection efficiency of electrostatic precipitator can be as high as 99.9%. Maximum temperature and pressure of dust laden gas that can be cleaned in an electrostatic precipitator is respectively ?
Dust collection efficiency of electrostatic precipitator can be as high as 99.9%. Maximum temperature and pressure of dust laden gas that can be cleaned in an electrostatic precipitator is respectively ?A. 200°C and 5 atm
B. 1000°C and 10 atm
C. 500°C and 50 atm
D. 1000°C and 500 atm