What three factors influence how much liquid can be loaded onto a tank vehicle?

The correct choice highlights three critical factors that impact how much liquid can be loaded onto a tank vehicle: expansion in transit, weight of liquid, and legal weight limits.

Expansion in transit refers to the phenomenon where liquids can expand due to temperature changes during transport. This expansion must be factored in when loading, as it can affect the vehicle’s capacity and stability, potentially leading to overfilling and creating hazardous conditions.

The weight of the liquid is another vital consideration, as it directly affects the overall weight of the vehicle. Every vehicle has a maximum weight limit it can safely carry, which is determined by regulations and the vehicle's design. If the weight of the liquid exceeds this limit, it can result in unsafe driving conditions and violation of legal standards.

Legal weight limits are imposed by authorities to ensure safety on the roads. These limits are established based on the type of vehicle and its purpose, and exceeding them can not only lead to fines but also pose significant safety risks due to compromised vehicle control.

Understanding these factors is crucial for safely loading tank vehicles and adhering to regulations, which is why this choice accurately emphasizes the important aspects of loading liquids into tank vehicles.