Crist CDL free online BVM practice tests
MS Air Brakes Fact Sheet
Questions on Test:
25
Correct answers needed to pass:
20
Passing Score:
80%
Age to apply:
18
Advertisement
Advertisement
Advertisement

Oil and water usually collect in compressed air tanks. If you do not have an automatic tank drain, when should you drain the air tanks?

Rate This Test:
** Please remember the ads keep our CDL practice tests free when voting.
Advertisement