Question 1056 Deck General

The correct answer is D) All of the above. For combustion to occur inside a piping system, such as a vapor collection header in a marine emission control system, the three essential elements of the fire triangle must be present: ignition, oxygen, and fuel. All three of these components are required for combustion to take place. If any one of these elements is missing, combustion cannot occur. The other answer options, A) ignition, B) oxygen, and C) fuel, are all correct on their own, but they do not fully capture the complete set of requirements for combustion to happen within a confined piping system. The correct answer is the one that acknowledges all three essential elements must be present for combustion to take place.