Which of the following correctly describes a house trailer?

A house trailer, also referred to as a manufactured home, is characterized primarily by its purpose and design for use as a dwelling. The correct choice describes a trailer that is specifically designed to be less than 40 feet in length, highlighting its capacity to serve as a living space, which aligns with the definition of a house trailer under transportation codes.

This definition is important as it demarcates residential use from other types of trailers or vehicles. A house trailer is distinct in its construction and intended application, ensuring that it is recognized within legal and regulatory frameworks as a viable residential option. This also relates to zoning and building codes that might apply in various jurisdictions concerning manufactured homes.

The other choices do not adequately capture the essence of what constitutes a house trailer. For example, a vehicle that cannot be transported on highways does not fit the definition, as house trailers are specifically designed for transport. Similarly, a recreational vehicle with no permanent chassis does not serve the same residential purpose, and a vehicle designed exclusively for commercial transport would not qualify as a house trailer. Understanding these distinctions is crucial for those studying the traffic and transportation code.