Final answer:
Without specific aircraft model details, a definitive answer regarding the ADG powering the HYD 3B pump cannot be given as it depends on the design of the aircraft's emergency power system.
Step-by-step explanation:
The question addresses a specific aspect of aircraft systems, particularly the power source for a hydraulic pump. The ADG, which stands for Air-Driven Generator, is a device used in aircraft to provide emergency power and operates hydraulic pumps in case of a main power loss. However, without specific details on the aircraft model and its systems, it is not possible to provide a definitive true or false answer to the statement that the ADG powers the HYD 3B pump directly, regardless of switch position. The operation of the ADG and its connection to the HYD 3B pump can vary depending on the particular design of the aircraft's emergency power system.