粉碎、筛析与混合（Crushing, screening and mixing）.docVIP

粉碎、筛析与混合（Crushing, screening and mixing） The third chapter is grinding, screening and mixing One, A type questions 1. all through a sieve, but mixed with the powder through sieve No. three not more than 20% is the A. the most coarse powder The coarse powder B. The powder C. The D. fine powder E. extremely fine powder 2. different Chinese medicinal herbs have different hardness because A. elasticity is different B. brittleness is different C. cohesion is different D. density is different E. water content is different 3. suitable for crushing crystalline drugs, toxic medicine, medicine, medicine and fine material volatile irritant drugs (such as the mill, toad) A. can wear the B. hammer crusher (the hammer machine) C. Chaitian (universal grinder grinder) The D. universal milling machine The ball mill E. 4. below is the critical relative humidity (CRH) of the powder. Which one is most hygroscopic? A.60% B.53% C.50% D.48% E.40% 5. using high speed fluid to smash and smash A. ball mill B. yard crusher C. universal crusher D. hammer crusher E. flow energy mill 6., oil containing viscous strong powder, which kind of screening machine should be selected? A. hand sieve B. vibrating screen powder machine C. suspension type bias screening machine D. electromagnetic shaking sifter E. cyclone separator The 7. is the principle of cryogenic comminution A. the drug increased brittleness B. reduced the cohesive force of the drug Change the structure of C. drugs The drugs reduce the brittleness of D. The increase in viscosity of drug E. 8. drug treatment after steaming pot crushed with the A. contains a lot of spices of the viscous component B. contains a large number of oil constituents of the spices C. contains lots of valuable spices the fine material D. containing animal hides, meat, and spices E. contains a large number of components of the spice powder 9. the following description of the characteristics of the micropowder is incorrect A. powder is a collection of tiny particl