Suspension Systems Quiz

What does it mean when suspension systems are described as 'independent' on cars today?

• All wheels are connected by a single suspension unit.

• Each wheel has its own suspension unit.

• The suspension system is controlled manually.

• The suspension system is not used in modern cars.

Answer explanation

When suspension systems are described as 'independent', it means each wheel has its own suspension unit, allowing for better handling and comfort as each wheel can move independently of the others.

Which component is NOT part of the un-sprung weight?

• Brakes

• Hubs

• gearbox

• Wheels

Answer explanation

The gearbox is part of the vehicle's drive system and is mounted on the chassis, making it part of the sprung weight. In contrast, brakes, hubs, and wheels are unsprung components that directly affect ride quality and handling.

What does the term 'independently' imply in the context of suspension systems?

• The system requires manual operation.

• Each wheel operates without affecting the others.

• The system is not used in modern vehicles.

• All wheels are connected by a single unit.

Answer explanation

In suspension systems, 'independently' means that each wheel can move and respond to road conditions without influencing the others, providing better handling and comfort. This is crucial for vehicle stability and performance.

What is an example of active or adaptive suspension?

• Leaf spring suspension

• Air bag suspension

• Coil spring suspension

• Torsion bar suspension

Answer explanation

Air bag suspension is an example of active or adaptive suspension as it uses air-filled bags to adjust the vehicle's ride height and comfort, unlike the other options which are passive systems.

In the UK, what is the component in the image commonly called?

• Shock absorber

• Damper

• Strut

• Coil

Answer explanation

In the UK, the term 'damper' is commonly used to refer to the component that absorbs and dampens shock in vehicles, making it the correct choice over 'shock absorber', 'strut', or 'coil'.

Why is it important for a damper to slow the oscillations of the spring?

• To make the vehicle faster

• To prevent the vehicle from becoming out of control

• To increase the vehicle's weight

• To improve the vehicle's fuel efficiency

Answer explanation

A damper slows the oscillations of the spring, which helps maintain vehicle stability and control. Without proper damping, the vehicle could bounce excessively, leading to loss of control, especially during turns or on uneven surfaces.

Why are suspension bushes generally made from?

• Plastic

• Metal

• Rubber

• Wood

Answer explanation

Suspension bushes are generally made from rubber because it provides excellent flexibility and shock absorption, which are essential for vehicle suspension systems. Rubber helps reduce vibrations and noise, enhancing ride comfort.

What should you ensure before attempting to remove a suspension spring?

• You have the right tools

• You are fully trained

• You have a partner

• You have a manual

Answer explanation

Before removing a suspension spring, it's crucial to be fully trained to ensure safety and proper technique. This task involves risks, and training equips you with the necessary skills to handle it correctly.

What function do the ball joints in a double wishbone suspension serve?

• They prevent the hub from turning

• They allow the hub to turn

• They connect the suspension to the engine

• They reduce the weight of the vehicle

Answer explanation

The ball joints in a double wishbone suspension allow the hub to turn by providing a pivot point for the suspension arms, enabling smooth steering and wheel movement while maintaining stability.

What should you ensure when using the fluid in a hydro-pneumatic suspension system?

• It is the correct type

• It is mixed with water

• It is heated

• It is frozen

Answer explanation

In a hydro-pneumatic suspension system, using the correct type of fluid is crucial for optimal performance and safety. Mixing with water, heating, or freezing the fluid can compromise the system's functionality.