Los Angeles Abrasion Test on Aggregate

What is size of sieve used in the experiment to obtain the final weight of retained sample?
What is the maximum permissible abrasion value for water bound macadam sub base course?
What is the internal diameter and length of circular drum of Los - Angeles abrasion machine?
Number of spheres used in grade B aggregate?
Aggregates with poor resistance to abrasion can produce excessive dust. (say True or False)