What is the impact of incorrect injector nozzle angles?

Incorrect injector nozzle angles significantly affect engine performance and efficiency. The primary role of an injector nozzle is to atomize the fuel properly, ensuring it mixes well with air for efficient combustion. When the angle is not set correctly, it can lead to a poor spray pattern, which may result in the fuel not being atomized properly and not reaching all areas of the combustion chamber.

This improper fuel spray can lead to incomplete combustion, as the fuel fails to burn fully. Incomplete combustion is not only less efficient, resulting in a waste of fuel, but it also produces more emissions, including unburned hydrocarbons and soot particles, which contribute to pollution. Additionally, the engine may experience reduced power output, higher exhaust temperatures, and potential long-term damage due to carbon build-up or misfiring.

Thus, the impact of incorrect injector nozzle angles is detrimental, causing poorer combustion process efficiency and increased emissions, confirming that choice B is the correct answer.