Which of the following actions is NOT permitted to be performed with the use of the Norfolk Southern Brake Stick?

Operating a cut lever is not permitted with the use of the Norfolk Southern Brake Stick. The Brake Stick is specifically designed for certain tasks related to train operations, primarily those that allow for safe handling of brake applications and adjustments from a distance. Using the Brake Stick for operating the cut lever is not only against safety protocols but could also compromise the integrity of the braking system and present a danger to personnel on the ground.

In contrast, the other actions—forcing a stubborn wheel, applying brakes on multiple cars, and adjusting handbrakes—fall within the intended uses of the Brake Stick. These tasks generally involve providing safe leverage and control to manipulate equipment without requiring personnel to be in the immediate danger zone of the cars or trains. Thus, the key aspect of the Brake Stick's design is that its use is limited to specific operations that ensure safety and efficiency in train management.