What part of the job folder contains elevator speed, capacity, and loading class information?

The correct choice is found in the technical specifications section of a job folder. This part explicitly documents essential details about the elevator, including speed, capacity, and loading class information. Technical specifications serve as a comprehensive reference, outlining the operational and design parameters that define how the elevator will perform.

In contrast, the abstract provides a summary and general description of the project but does not delve into detailed specifications. The drawing index lists and organizes the drawings associated with the project, which may include diagrams but lack specific operational data. The project schedule outlines the timeline and milestones of the project's development but does not contain the technical details necessary for understanding elevator performance metrics.