A pre-trip inspection reveals that a cargo tank is leaking. What should the driver do?
Correct answer: C – Do not transport liquid or gas in the tank
The Vermont Commercial Driver’s License Manual identifies leaks as the most important tank-vehicle inspection item. A driver must not carry liquids or gases in a leaking tank; the manual warns that the driver may be cited and prevented from continuing. Before moving the vehicle, check the tank shell, valves, pipes, connections, and hoses for leaks.
Source: Vermont Commercial Driver’s License Manual — § 8.1.1, “Leaks”

