Red Seal Automotive Service Technician Practice Exam

What is the primary function of a vehicle's suspension system?

1. To enhance fuel efficiency

2. To support vehicle weight and absorb road shocks

3. To improve engine cooling

4. To implement braking force

The correct answer is: To support vehicle weight and absorb road shocks

The primary function of a vehicle's suspension system is to support the vehicle's weight and absorb road shocks. This system is crucial for maintaining contact between the tires and the road, which is essential for stability, handling, and safety. By using components like springs, shock absorbers, and control arms, the suspension system mitigates the impact of bumps and irregularities in the road surface. This function not only increases comfort for passengers by smoothing out the ride but also helps to maintain control and traction, allowing the driver to navigate safely. While fuel efficiency, engine cooling, and braking force are important aspects of vehicle performance, they are not the primary functions of the suspension system. Fuel efficiency is largely affected by engine and driveline components, engine cooling is managed by the cooling system, and braking force is managed by the braking system. Hence, the suspension's main role remains focused on support and shock absorption.