Question 1

Independent suspension systems have more unsprung weight than rigid axle suspensions.

Accepted Answer

Independent suspension systems typically have less unsprung weight than rigid axle suspensions because each wheel is suspended independently, allowing for lighter components and less mass not supported by the springs.

Question 2

A(n) ____________________ allows motion in two directions, moving with the same up-and-down motion as the bushings on the other end of the control arm.

Accepted Answer

ball joint

Question 3

A(n) ____________________ spring is made of a long, flat strip of spring steel or composite fiber rolled at both ends to accept a pressed-fit rubber insulating bushing.

Accepted Answer

leaf

Question 4

The term MOST-Likely used to describe the event that occurs when hydraulic fluid becomes mixed with air is:

Accepted Answer

When hydraulic fluid becomes mixed with air, it is known as aeration. This can cause issues with the performance of hydraulic systems, as the air bubbles can compress and result in a loss of pressure and responsiveness.

Question 5

Some trucks have one or more ____________________ leaves that do not work until the other leaves have deflected enough under load to allow them to come into contact.

Accepted Answer

The answer of Some trucks have one or more ____________________...

Question 6

Which of the following statements is LEAST-Likely true?

Accepted Answer

An active suspension system does not require conventional shock absorbers or springs, as it uses actuators to control the suspension instead.

Question 7

A rear subframe includes the engine, transaxle, and steering/suspension system.

Accepted Answer

A rear subframe typically includes only the steering/suspension system, not the engine and transaxle which are located at the front of the vehicle.

Question 8

While having a discussion, Technician A says that SLA suspensions maintain precise wheel position under all driving conditions. Technician B says that they can have a large amount of vertical travel without scrub. Who is correct?

Accepted Answer

Both technicians are correct. SLA (short/long arm) suspensions use upper and lower control arms to maintain precise wheel position under all driving conditions. They also have a large amount of vertical travel without causing excessive tire wear or scrubbing.

Question 9

Rather than compressing, a(n) ____ is a straight rod that twists.

Accepted Answer

A torsion bar spring is a type of suspension system that uses a straight rod that twists to provide support and absorb shock, rather than compressing like traditional coil springs. The twisting motion of the rods provides resistance and helps keep the vehicle stable on the road.

Question 10

Some vehicles made since the early 1980s have used composite springs made of reinforced fiberglass or graphite-reinforced plastic.

Accepted Answer

Some vehicles have indeed used composite springs made of reinforced fiberglass or graphite-reinforced plastic since the early 1980s. These materials are lightweight, rust-resistant, and have a longer lifespan compared to traditional steel springs.

Question 11

A(n) ____________________ shock usually has the reserve chamber in the same column as the working piston.

Accepted Answer

The answer of A(n) ____________________ shock usually has the reserve...

Question 12

Springs support the load of the vehicle, absorbing the up-and-down motion of the wheels that would normally be transmitted directly to the frame and body.

Accepted Answer

Springs are designed to support the load of the vehicle and absorb the up-and-down motion of the wheels, preventing it from being transmitted directly to the frame and body.

Question 13

Normal suspension systems are MOST-Likely referred to as:

Accepted Answer

Normal suspension systems are designed to absorb shocks and vibrations without any external assistance. These are passive systems and do not require any active or adaptive mechanism to adjust the ride quality. The other choices such as shackles and load carriers refer to specific components or functions of the suspension system, but not to the system as a whole.

Question 14

Which of the following is LEAST-Likely a component of the suspension system?

Accepted Answer

Bearings are not typically considered a component of the suspension system, as they are not directly involved in controlling the movement or stability of the vehicle's body. Springs, shock absorbers, and control arms are all essential parts of the suspension system, working together to absorb and reduce the impact of bumps and uneven terrain on the vehicle's wheels and body.

Question 15

____________________ is the weight that is supported by the car springs.

Accepted Answer

The answer of ____________________ is the weight that is supported...

Question 16

All of the following statements are true EXCEPT:

Accepted Answer

A MacPherson strut suspension typically does not have an upper control arm and upper ball joint; it uses a single, large strut that integrates the shock absorber into the suspension design, simplifying the front suspension layout by providing both springing and damping in a single component.

Question 17

While having a discussion, Technician A says that shock absorbers are responsible for absorbing a good deal of road shock. Technician B says that the tires are a vehicle's primary shock absorbers. Who is correct?

Accepted Answer

Both technicians are correct. Technician A is correct in stating that shock absorbers are designed to absorb and dampen road shock, making the ride smoother for passengers. Technician B is also correct because tires act as the first point of contact with the road and absorb a significant amount of road shock before it reaches the suspension system.

Question 18

The ____ is the most common spring type used in passenger cars.

Accepted Answer

Coil springs are the most commonly used spring type in passenger cars due to their compact size, versatility in design, and ability to provide a smooth ride.

Question 19

Torsion bars are made of heat-treated alloy steel with a hex head or splines at each end.

Accepted Answer

Torsion bars are indeed made of heat-treated alloy steel with a hex head or splines at each end.

Question 20

All of the following statements are true EXCEPT:

Accepted Answer

The answer of All of the following statements are true...

Quiz 63: Suspension Fundamentals

Independent suspension systems have more unsprung weight than rigid axle suspensions.

A(n) ____________________ allows motion in two directions, moving with the same up-and-down motion as the bushings on the other end of the control arm.

A(n) ____________________ spring is made of a long, flat strip of spring steel or composite fiber rolled at both ends to accept a pressed-fit rubber insulating bushing.

The term MOST-Likely used to describe the event that occurs when hydraulic fluid becomes mixed with air is:

Some trucks have one or more ____________________ leaves that do not work until the other leaves have deflected enough under load to allow them to come into contact.

Which of the following statements is LEAST-Likely true?

A rear subframe includes the engine, transaxle, and steering/suspension system.

While having a discussion, Technician A says that SLA suspensions maintain precise wheel position under all driving conditions. Technician B says that they can have a large amount of vertical travel without scrub. Who is correct?

Rather than compressing, a(n) ____ is a straight rod that twists.

Some vehicles made since the early 1980s have used composite springs made of reinforced fiberglass or graphite-reinforced plastic.

A(n) ____________________ shock usually has the reserve chamber in the same column as the working piston.

Springs support the load of the vehicle, absorbing the up-and-down motion of the wheels that would normally be transmitted directly to the frame and body.

Normal suspension systems are MOST-Likely referred to as:

Which of the following is LEAST-Likely a component of the suspension system?

____________________ is the weight that is supported by the car springs.

All of the following statements are true EXCEPT:

While having a discussion, Technician A says that shock absorbers are responsible for absorbing a good deal of road shock. Technician B says that the tires are a vehicle's primary shock absorbers. Who is correct?

The ____ is the most common spring type used in passenger cars.

Torsion bars are made of heat-treated alloy steel with a hex head or splines at each end.

All of the following statements are true EXCEPT: