What specific factor does 49 CFR 383.119(e) require tank endorsement applicants to know about regarding cargo surge?
Tanker (N) Endorsement • Free CDL Practice Question
Regulation
49 CFR 383.119(e)
Why This Matters
Different cargos, water, milk, fuel, acid, weigh and move differently in the same size tank. The federal knowledge-test topic list specifically calls out product density as a factor in surge behavior, which is why the tanker endorsement exam can test this distinction even though the AAMVA manual itself doesn't spell out the density-surge mechanism in detail.