Which of the following is true when loading or unloading hazmat?

Do all you can to protect containers of hazardous materials. Do not use any tools that might damage containers or other packaging during loading. Do not use hooks.
Before loading or unloading, set the parking brake. Make sure the vehicle will not move.
Many products become more hazardous when exposed to heat. Load hazardous materials away from heat sources.
Watch for signs of leaking or damaged containers: LEAKS SPELL TROUBLE! Do not transport leaking packages.
Depending on the material, you, your truck and others could be in danger.