Which of the following is a critical requirement for brake linings?

Brake linings are crucial components of a vehicle's braking system, responsible for creating the friction necessary to stop the vehicle effectively. One of the critical requirements for brake linings is that they must be dry and free of oil or grease. If the brake linings become contaminated with oil or grease, it can significantly diminish their effectiveness, leading to reduced braking performance and increased stopping distances. This can pose serious safety risks not only to the vehicle occupants but also to other road users.

Ensuring that brake linings are free from contaminants ensures optimal contact with the brake drums or discs, allowing for efficient conversion of brake pedal pressure into stopping power. Regular inspections should include checking for any signs of contamination on the brake linings, as maintaining their integrity is vital for safe vehicle operation.