Which of the following best describes the outcome of poor fuel atomization?

The outcome of poor fuel atomization primarily leads to reduced fuel efficiency. When fuel is not atomized properly, it means that the fuel droplets are either too large or not evenly distributed in the combustion chamber. This uneven distribution results in incomplete combustion, where not all the fuel is burned effectively. As a consequence, more fuel is required to produce the same amount of power, ultimately leading to decreased efficiency.

In contrast, good atomization allows for a finer mist of fuel, promoting better mixing with air and facilitating more complete combustion. Thus, while options relating to combustion temperature, combustion improvement, or emissions may be indirectly affected by poor atomization, the most direct and significant impact is indeed on fuel efficiency.