Which components of the T-11 main parachute are touched during JMPI?

During Jumpmaster Personnel Inspection (JMPI), specific components of the T-11 main parachute are inspected to ensure they are properly assembled and safe for deployment. The selection that includes the universal static line modified, riser assembly, and pack tray encompasses several critical elements of the parachute system that the Jumpmaster checks.

The universal static line modified is essential for initiating the deployment of the canopy once the jumper exits the aircraft. The riser assembly connects the canopy to the harness and facilitates the parachute's opening and descent. The pack tray holds the parachute bundle securely until deployment. Inspecting these components ensures that the parachute system functions correctly during jumps, enhancing safety and reliability.

Other options refer to components of the parachute system but do not cover the key operational elements relevant to JMPI. Inspecting the canopy assembly and slider, for example, can be important but is not as immediately connected to the deployment process as the elements in the correct choice. Therefore, the focus on the universal static line, riser assembly, and pack tray in JMPI highlights their critical role in the parachute's functionality during a jump.