Final answer:
The question relates to the engineering standards for the minimum hallway length that requires a receptacle outlet. It is not directly answered by the reference information given, which provides lengths from one foot up to eight feet, but typically, proper codes may require a hallway of a certain length, such as 10 feet, to have an outlet.
Step-by-step explanation:
The student's question pertains to the requirements for installing receptacle outlets in residential or commercial buildings, which is a topic generally addressed within electrical codes and guidelines in engineering and construction.
The question asks for the minimum length of a hallway that would require the installation of at least one receptacle outlet. Contemporary building codes often dictate such requirements for the purpose of safety and convenience. For instance, an electrical code might state that hallways of 10 feet (not specifically mentioned in the reference information) in length or more shall have at least one receptacle outlet, considering that the shortest length provided in the reference is a line of one foot and the longest is a line of eight feet.