New York Low Pressure Boiler Certificate of Fitness (COF) Practice Test

What helps ensure prompt ignition and rapid combustion when oil is atomized?

1. The use of steam

2. The presence of air

3. High temperatures

4. Oxygen enrichment

The correct answer is: The presence of air

The presence of air is crucial in the process of ensuring prompt ignition and rapid combustion when oil is atomized. When oil is atomized, it is broken down into fine droplets, which increases its surface area. For complete combustion to occur, these tiny oil droplets need to mix thoroughly with air. Air contains oxygen, which is a fundamental component needed for combustion. When oil droplets are efficiently atomized and mixed with a sufficient amount of air, the conditions are ideal for ignition to occur quickly. This rapid mixing allows for the fuel to ignite at lower temperatures and enhances the overall efficiency of the combustion process. While other factors, like steam, high temperatures, and oxygen enrichment, can play roles in combustion, air is the primary element that facilitates the necessary chemical reaction between oxygen and the fuel. Without a proper supply of air, the combustion process would be slower and less efficient, leading to incomplete combustion and potentially harmful emissions.