Final answer:
A servo or hydraulic system aids in maneuvering the single-point nozzle of a pantograph, assisted by sensors and control systems for precise positioning.
Step-by-step explanation:
The component on a pantograph that aids in maneuvering the single-point nozzle near the skin of the aircraft is typically a servo or hydraulic system. These systems allow for precise control of the pantograph's movements to ensure the nozzle can approach the aircraft's surface at the correct angle and distance for fueling or other maintenance tasks. Advanced pantographs may also incorporate sensors and control systems that provide feedback for accurate positioning.