Sphericity is the ratio of the surface area of a spherical particle having the same volume as the particle to the surface area of the particle. Which of the following has the maximum value of sphericity ?

Related Mcqs:

Separation of isotopes is generally done using a/an _______________ centrifuge?

A. Ultra B. Disk-bowl C. Both A. & B. D. Neither A. nor B....

Activators are those chemicals which help buoying up one mineral in preference to the other in the froth floatation process. Which of the following is an activator ?

A. Cresylic acid B. Copper sulphate C. Calcium carbonate D. Sodium carbonate...

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...

Which of the following crushing laws is most accurately applicable to the fine grinding of materials ?

A. Bond’s crushing law B. Kick’s law C. Rittinger’s law D. None of these...

In case of grinding in a ball mill__________________?

A. Wet grinding achieves a finer product size than dry grinding B. Its capacity decreases with increasing fineness of the products C. Grinding cost and power requirement increases with increasing fineness of the products D. All A., B. and C...