AE Unit 7- Automotive Brakes, Tyres & Wheel: Classification of brakes; Principle and constructional details of Drum brakes, Disc brakes; Brake actuating systems; Mechanical, Hydraulic, Pneumatic Brakes; Factors affecting Brake Performance, Power & Power Assisted Brakes; Types of Wheels; Types of Tyres & their constructional details, Wheel balancing, Tyre Rotation; Types of Tyre Wear & their causes.