Question 1

____ is the angle represented by the tilt of a wheel inward or outward from the vertical as viewed from the front of the car.

Accepted Answer

Camber is the angle represented by the tilt of a wheel inward or outward from the vertical as viewed from the front of the car. Caster refers to the angle of the steering axis, Toe refers to the angle between the longitudinal axis of the wheel and the axis of the vehicle, and Steering Axis Inclination refers to the angle between the steering axis and the vertical axis of the vehicle when viewed from the side.

Question 2

Technician A says tilting the top of the wheel forward will result in a negative caster. Technician B says tilting the top of a wheel outward will result in negative camber. Who is correct?

Accepted Answer

Tilting the top of the wheel forward will result in a negative caster, which is correct according to Technician A. However, tilting the top of the wheel outward will result in a positive camber, not a negative camber as stated by Technician B. Therefore, option B is incorrect.

Question 3

All the following statements are correct EXCEPT:

Accepted Answer

The answer of All the following statements are correct EXCEPT:
...

Question 4

After a two wheel alignment, the steering wheel on the vehicle is not centered. Technician A recommends a four wheel alignment to determine whether the rear wheels are parallel to one another and perpendicular to a common centerline. Technician B says if the steering wheel is not centered after an alignment, it should be pulled off the column and correctly positioned. Who is correct?

Accepted Answer

Technician A is correct because a four-wheel alignment can help determine if the rear wheels are causing the steering wheel to be off-center by checking their alignment relative to the vehicle's centerline. Technician B's approach of simply repositioning the steering wheel on the column does not address the underlying alignment issues that may be causing the steering wheel to be off-center.

Question 5

An incorrect turning radius angle is being discussed. Technician A says replacement shims can be used in many vehicles to correct the condition. Technician B says steering or suspension parts are damaged. Who is correct?

Accepted Answer

The answer of An incorrect turning radius angle is being...

Question 6

All the following angles are adjustable during wheel alignment EXCEPT:

Accepted Answer

Turning radius is not an angle that is adjustable during wheel alignment. It is dependent on the design and size of the vehicle. Camber, toe, and caster are all adjustable angles during wheel alignment.

Question 7

Which of the following statements is NOT correct?

Accepted Answer

Bent suspension parts should not be straightened as a method to correct camber angles because it can compromise the structural integrity and safety of the vehicle. Instead, damaged parts should be replaced.

Question 8

Technician A says a vehicle may wander as a result of excessive negative caster. Technician B says positive caster will result from excessive toe-in. Who is correct?

Accepted Answer

Excessive negative caster can cause a vehicle to wander. Positive caster is not related to toe-in; toe-in affects tire wear and straight-line stability, not caster.

Question 9

Technician A says if the distance between the leading edges of the front tires is less than the distance between the trailing edges, then there is toe-in. Technician B says front toe-in is adjusted by adding or removing shims between the upper control arms and the body/frame. Who is correct?

Accepted Answer

Technician A is correct because toe-in is defined by the distance between the leading edges of the front tires being less than the distance between the trailing edges. Technician B's statement about adjusting front toe-in with shims between the upper control arms and the body/frame is incorrect; toe adjustments are typically made by adjusting the tie rods, not by adding or removing shims in that location.

Question 10

A cam bolt at the junction between the base of the strut assembly and the steering knuckle is used to adjust the ______.

Accepted Answer

A cam bolt at the junction between the base of the strut assembly and the steering knuckle is primarily used to adjust the camber. Camber is the angle of the wheel relative to vertical, as viewed from the front or rear of the vehicle. Adjusting the camber can affect the tire contact patch with the road, influencing tire wear and handling characteristics.

Question 11

Technician A says if caster at both wheels is not equal, the vehicle will tend to drift toward the side with the most positive caster. Technician B says if camber is not the same on both wheels, the vehicle will pull toward the side with the most positive camber. Who is correct?

Accepted Answer

The answer of Technician A says if caster at both...

Question 12

Road crown is being discussed. Technician A adds slightly more negative caster on the left side to compensate. Technician B adds slightly more positive camber on the right side. Who is correct?

Accepted Answer

Technician A is correct because adding slightly more negative caster on the left side will help compensate for the road crown and keep the vehicle driving straight. Technician B is not correct because adding more positive camber on the right side will not necessarily compensate for the road crown and could potentially cause handling issues.

Question 13

All of the following statements about front wheel toe adjustment are true EXCEPT:

Accepted Answer

Toe should be adjusted after the caster and camber adjustments, not before.

Question 14

In what direction must the top of a tire and wheel assembly be moved to add more positive camber?

Accepted Answer

To add more positive camber, the top of the tire and wheel assembly must be moved outward, away from the vehicle.

Question 15

Unequal SAI angles may cause ______.

Accepted Answer

Unequal SAI (Steering Axis Inclination) angles can lead to various steering and handling issues, including brake pull, bump steer, and torque steer, making all the options correct.

Question 16

____ is the angle of the steering axis of a wheel from the vertical, as viewed from the side of the vehicle.

Accepted Answer

Caster refers to the angle of the steering axis of a wheel from the vertical, as viewed from the side of the vehicle. Camber refers to the angle of the wheels themselves, while toe refers to the alignment of the wheels in relation to each other when viewed from above. Steering axis inclination is another term for caster.

Question 17

Technician A says caster is the first angle checked during a two wheel alignment. Technician B says all vehicles with strut suspension have caster adjustments. Who is correct?

Accepted Answer

Caster is the first angle checked during a two wheel alignment.

Question 18

Technician A says the presence of an excessive thrust angle can cause poor directional stability on ice, snow, or wet pavement. Technician B says an excessive thrust angle can increase tire wear. Who is correct?

Accepted Answer

Technician A is correct because an excessive thrust angle can cause the vehicle to constantly pull to one side on slick road surfaces, reducing directional stability. Technician B is also correct because an excessive thrust angle can cause uneven tire wear as the tires constantly pull to one side.

Question 19

Four-wheel alignment concepts are being discussed. Technician A says the wheels are adjusted to be parallel to one another. Technician B says the wheels are adjusted to be perpendicular to a common centerline. Who is correct?

Accepted Answer

Both technicians are correct. The wheels are adjusted to be parallel to one another and perpendicular to a common centerline. This ensures that the vehicle travels in a straight line and doesn't pull to one side while driving.

Question 20

Which of the following statements is NOT correct?

Accepted Answer

Unequal side-to-side SAI can cause a pull while driving, as it affects the vehicle's alignment and balance.

Quiz 49: Wheel Alignment

____ is the angle represented by the tilt of a wheel inward or outward from the vertical as viewed from the front of the car.

Technician A says tilting the top of the wheel forward will result in a negative caster. Technician B says tilting the top of a wheel outward will result in negative camber. Who is correct?

All the following statements are correct EXCEPT:

An incorrect turning radius angle is being discussed. Technician A says replacement shims can be used in many vehicles to correct the condition. Technician B says steering or suspension parts are damaged. Who is correct?

All the following angles are adjustable during wheel alignment EXCEPT:

Which of the following statements is NOT correct?

Technician A says a vehicle may wander as a result of excessive negative caster. Technician B says positive caster will result from excessive toe-in. Who is correct?

Technician A says if the distance between the leading edges of the front tires is less than the distance between the trailing edges, then there is toe-in. Technician B says front toe-in is adjusted by adding or removing shims between the upper control arms and the body/frame. Who is correct?

A cam bolt at the junction between the base of the strut assembly and the steering knuckle is used to adjust the ______.

Technician A says if caster at both wheels is not equal, the vehicle will tend to drift toward the side with the most positive caster. Technician B says if camber is not the same on both wheels, the vehicle will pull toward the side with the most positive camber. Who is correct?

Road crown is being discussed. Technician A adds slightly more negative caster on the left side to compensate. Technician B adds slightly more positive camber on the right side. Who is correct?

All of the following statements about front wheel toe adjustment are true EXCEPT:

In what direction must the top of a tire and wheel assembly be moved to add more positive camber?

Unequal SAI angles may cause ______.

____ is the angle of the steering axis of a wheel from the vertical, as viewed from the side of the vehicle.

Technician A says caster is the first angle checked during a two wheel alignment. Technician B says all vehicles with strut suspension have caster adjustments. Who is correct?

Technician A says the presence of an excessive thrust angle can cause poor directional stability on ice, snow, or wet pavement. Technician B says an excessive thrust angle can increase tire wear. Who is correct?

Four-wheel alignment concepts are being discussed. Technician A says the wheels are adjusted to be parallel to one another. Technician B says the wheels are adjusted to be perpendicular to a common centerline. Who is correct?

Which of the following statements is NOT correct?