427/470.
7.
When refueling a vehicle transporting hazardous materials:
The engine should be left on.
The engine should be turned off.
The gas nozzle may be left unattended.
Someone other than the driver should do it.
15 18109 CDL 426 B "" 0

Answer correctly : 0   |   Wrong : 0

Answer Sheet :

Refresh

Refresh this page and redo the question

Restart

Restart this set of tests