Which of the following conditions can lead to poor paint flow?

Poor paint flow can result from low air pressure and incorrect gun distance because these factors directly influence how the paint is atomized and how evenly it is applied onto the surface. When the air pressure is too low, the paint may not spray out in a fine mist but rather in larger droplets or may not atomize properly, leading to uneven application and poor coverage. Similarly, if the gun is too far from the surface, the paint can begin to dry or lose its proper consistency before it reaches the substrate, causing issues with adherence and flow.

These combined conditions can greatly affect the quality of the finish and the overall appearance of the paint job, resulting in a rough surface or inadequate coverage. Proper adjustment of both air pressure and gun distance is crucial for achieving an optimal spray pattern, ensuring that the paint flows smoothly and adheres properly to the intended surface.