What are the two required methods of applying brakes in all automobiles?

The correct answer identifies the two essential methods of braking in all automobiles as regular brakes, which typically refer to the foot-operated brakes, and a hand brake, often used as a secondary, manual braking system. This setup is crucial for vehicle safety and control.

Regular brakes, primarily engaged by the foot, are designed to provide the vehicle's primary stopping mechanism. They usually involve hydraulic systems that effectively manage braking force. The hand brake, also known as the emergency brake or parking brake, serves as an additional layer of safety. It allows the driver to secure the vehicle when parked, preventing it from rolling, and can serve as a backup in case the regular brakes fail.

In understanding vehicle safety and operation, knowing both methods is vital, as each serves a distinct purpose. Regular brakes facilitate normal driving situations while the hand brake provides assurance in the event of an emergency or when parked.