Question

what is released from the torch tip that makes oxy-fuel cutting possible?
a an electric arc
b shielding gas
c unburned fuel gas
d a high-pressure jet of oxygen

Explanation:

In oxy - fuel cutting, the torch tip releases a high - pressure jet of oxygen. An electric arc is used in arc - based cutting processes (like arc welding - cutting), not oxy - fuel cutting. Shielding gas is used in processes like welding to protect the weld pool, not in oxy - fuel cutting for the cutting mechanism. Unburned fuel gas is not the key component that enables the cutting; it's the high - pressure oxygen that reacts with the metal to cause cutting.

Answer:

D. a high - pressure jet of oxygen