What is a vapor recovery system on a tanker?
a.A system that cools the liquid to prevent evaporation
b.A system that captures fuel vapors during loading and unloading to prevent air pollution
c.A system that pressurizes the tank
d.A system that monitors tire pressure
Explanation
A vapor recovery system captures fuel vapors that would otherwise escape into the atmosphere during loading and unloading operations. These systems are required at many facilities to reduce air pollution and prevent the release of volatile organic compounds.