What is the required clearance for tanks mounted between the front and rear axles of a vehicle?

The requirement that tanks must be installed not lower than the front axle height is crucial for safety and proper vehicle operation. This guideline ensures that the tanks are positioned in a manner that minimizes the risk of damage when the vehicle is in motion, especially when traversing uneven terrain or encountering obstacles.

Mounting the tanks lower than the front axle height could lead to increased vulnerability to impacts and potential compromises to the tank's integrity, which poses safety risks, including leaks or ruptures that could result in hazardous situations. By keeping the tanks at or above the front axle height, regulatory standards aim to enhance safety for both the vehicle occupants and the surrounding environment.

The other options would not meet safety standards and could lead to potential hazards, such as exposing the tanks to unnecessary risks or interfering with the vehicle's operational characteristics. Thus, the requirement emphasizes the importance of strategic placement of tanks for optimal safety on the road.