What can occur if there is more oxygen flowing than can pass through the tip of the torch?

When there is a higher flow of oxygen than what can be expelled through the nozzle of the torch, this creates increased pressure in the supply lines. This situation can lead to reverse flow, where the gases move in the wrong direction into the oxygen supply which can be hazardous.

Reverse flow can introduce oxygen back into the fuel line or a part of the system that is not designed to handle it. This can result in dangerous conditions, such as an increased risk of fire or explosion due to the improper mixture of gases or unregulated flow. Therefore, maintaining a balanced flow of oxygen and fuel is crucial to ensure safety and proper functioning of the torch. This is why the condition described aligns with the implications of having excessive oxygen flow in relation to the torch operation.