Why do some tank vehicles include insulation or heating elements as part of their design?

Pick an answer

1. Insulation is added purely to reduce the vehicle's exterior noise
2. Heating elements are used only to prevent the tank's exterior paint from fading in extreme cold or direct sunlight
3. All tank vehicles include heating elements regardless of cargo type
4. Certain cargoes need to be kept within a specific temperature range to remain safe or usable during transport

Correct!

Not quite. The correct answer is highlighted.