Which of the following is a sign of potential brake problems?

The correct choice indicates that all options listed—cracked drums, squeaking noise, and inconsistent brake pressure—are indeed signs of potential brake problems. Each one signifies issues that could affect braking performance.

Cracked drums can lead to brake failure as they compromise the structural integrity of the braking system, risking severe safety implications. Squeaking noise is often a warning signal that either the brake pads are worn down or there could be debris affecting the brakes, both of which should prompt immediate inspection. Inconsistent brake pressure can indicate air in the brake lines or issues with the hydraulic system, making it difficult for the driver to have reliable control over braking.

Recognizing these signs is vital for maintaining vehicle safety and ensuring proper brake function, enabling prompt repairs and replacements before more serious issues arise.