If an oxygen panel does not open automatically, which option is NOT a valid method to open it?

In situations where an oxygen panel fails to open automatically, safety protocols dictate the methods for attempting to open it. The correct choice identifies a method that is generally not recognized as a valid or safe practice.

Using a screwdriver to turn a mechanism in an attempt to open the oxygen panel is typically not advisable. This method can potentially damage the panel or the locking mechanism, leading to further complications or hazards. It may also be against safety protocols which emphasize the use of non-destructive methods to access emergency equipment.

In contrast, other methods might be considered, depending on the context and specific emergency procedures established by aviation authorities. Actions like gently prying the panel or utilizing an appropriate tool designed for that purpose (in some contexts) could be acceptable, whereas hitting the panel is generally discouraged due to the risk of damaging the equipment. Each of these other methods, while they may carry their own risks, are approaches that could be employed under specific circumstances, unlike using a screwdriver.