Pick out the material having minimum Rittinger’s number?
Pick out the material having minimum Rittinger’s number?
A. Calcite
B. Pyrite
C. Quartz
D. Galena
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To produce talcum powder, use_____________________?
To produce talcum powder, use_____________________?A. Ball mill
B. Hammer mill
C. Jet mill
D. millCoal is finally pulverised to 200 mesh size for burning in boilers by a___________________?
Coal is finally pulverised to 200 mesh size for burning in boilers by a___________________?A. Hammer crusher
B. Ball mill
C. Roll crusher
D. Gyratory crusher_____________ are mixed using ribbon blenders ?
_____________ are mixed using ribbon blenders ?A. Lumpy solids and low viscosity liquids
B. Dry powders
C. High viscosity liquids
D. Thick pastesTrommels are revolving screens which normally operate in the range of _______________ rpm?
Trommels are revolving screens which normally operate in the range of _______________ rpm?A. 1 – 2
B. 15 – 20
C. 40 – 50
D. 60 – 75Which of the following comes in the category of primary crusher for hard and tough stone ?
Which of the following comes in the category of primary crusher for hard and tough stone ?A. Jaw crusher
B. Cone crusher
C. Gyratory crusher
D. None of theseUse of baffles in agitators help in minimising the ______________ tendency?
Use of baffles in agitators help in minimising the ______________ tendency?A. Swirling
B. Vortexing
C. Both A. & B.
D. Neither A. nor B.