Florida CDL Permit Test - Tank

A trailer tends to swing around, potentially resulting in a trailer jackknife, if its wheels lock up.

Before a trip, be sure to inspect all couplings. There should be no space between the upper and lower fifth wheel.

Always turn off your vehicle's engine before loading or unloading explosive materials. Never drop, throw, or roll packages containing explosives.

Be cautious when driving near people who are working on disabled vehicles. The task will likely consume their attention, so they may not be aware of traffic or other hazards on the road.

If your vehicle "pulls" to one side when braking, you may have brake trouble. If there is an issue with your brakes, you should fix the issue before driving. Operating an unsafe vehicle is against federal and state laws.

While shippers of hazardous materials are responsible for providing necessary placards, it is the driver's responsibility to actually place them on the vehicle.

The added weight of a heavy load will make a vehicle sit lower than usual. A vehicle will often be taller when carrying a light load than when carrying a heavy load. If your vehicle fits under an overpass while carrying a full load, it is not guaranteed that it will fit under the same overpass if it is empty.