What should operators of oxy-fuel gas equipment inspect after assembly?

The correct answer is the comprehensive inspection of cylinders, hoses, fittings, regulators, and torch. This thorough inspection is crucial because each component plays a vital role in ensuring safe and efficient operation of oxy-fuel gas equipment.

Cylinders must be inspected for any signs of damage or corrosion, as they hold the gases under high pressure and any leaks could pose a significant safety hazard. Hoses are examined for wear, cracks, or leaks that could lead to dangerous situations, such as fires or explosions. Fittings are assessed to ensure proper connections and prevent gas leaks. Regulators need to be checked for functionality, ensuring they can effectively control the gas flow. Finally, the torch itself is inspected to confirm it is free of defects and can operate correctly.

A focused approach on just hoses and fittings, regulators and torch, or cylinders and hoses would leave out critical checks on other essential components that could jeopardize safety. Therefore, inspecting all parts of the equipment ensures that operators can work confidently and without risk during oxy-fuel gas applications.