Tube mill compared to ball mill_______________________?

Related Mcqs:

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...

Use of grinding aids results in the ___________________?

A. Enhanced production rate B. Finer products C. Both A. & B. D. Neither A. nor B....

Reciprocating screens are normally inclined at an angle of 5° with the horizontal and employ gyratory motion at feed end & reciprocating motion at the discharge end. They are not suitable for the screening of the ___________________?

A. Light metal powder down upto 4 mesh size B. Dry chemicals C. Heavy tonnages of rocks or gravel D. Powdered food & granular materials...

Filter aids like asbestos, kieselguhr, diatomaceous earth etc. are used to increase the porosity of the final filter cake & reducing the cake resistance during filtration. Filter aid is_______________?

A. Added to the feed slurry B. Pre-coated on the filter medium prior to filtration C. Separated from the cake by dissolving solids or by burning it off D. All A, B. & C....

Half the angle of nip, (α), for a roll crusher is given by (where, dr, dp and df are diameters of crushing rolls, feed particles and rolls gap respectively) ?

A. cos α = (dr + dp)/(dr + df) B. cos α = (dr + df)/(dr + dp) C. tan α = (dr + dp)/(dr + df) D. sin α = (dr + dp)/(dr + df)...