Question 1

Correct ____________________ is the result of having all suspension parts in their correct locations, in good condition, and aligned so that the rear wheels follow directly behind the front wheels while moving in a straight line .

Accepted Answer

The answer of Correct ____________________ is the result of having...

Question 2

Technician A says thrust line deviations are usually caused by the shifting of the rear axle on its spring supports. Technician B says rear wheel misalignment or damage from an accident can cause thrust line deviations. Who is correct?

Accepted Answer

Both technicians are correct. Thrust line deviations can be caused by the shifting of the rear axle on its spring supports, as mentioned by Technician A, and also by rear wheel misalignment or damage from an accident, as mentioned by Technician B.

Question 3

A four-wheel alignment is sometimes called a(n)____________________-wheel alignment.

Accepted Answer

The answer of A four-wheel alignment is sometimes called a(n)____________________-wheel...

Question 4

Before adjusting toe on a rack-and-pinion system, Technician A loosens the small outer bellows clamp. Technician B installs a steering wheel holder between the steering wheel and the driver's seat. Who is correct?

Accepted Answer

Both technicians are correct in their approach to adjusting toe on a rack-and-pinion steering system. Technician A loosens the small outer bellows clamp to allow for adjustment without damaging the bellows or affecting its position. Technician B uses a steering wheel holder to keep the steering wheel centered and stable during the adjustment process, ensuring that the wheels are aligned correctly relative to the steering wheel's position.

Question 5

When the right front wheel is turned 20 degrees to the left the left front wheel moves only 18 degrees. What could be the problem?

Accepted Answer

The steering arm could be causing the discrepancy in the wheel angles, as it is responsible for transferring the steering input to the wheels.

Question 6

Technician A says comparing the SAI, included, and camber angles can help identify damaged or worn components. Technician B says if the toe-out-on-turns (turning angle)is incorrect, the tie-rods, steering arm, or steering knuckle will be damaged and need to be replaced. Who is correc t?

Accepted Answer

Both technicians are correct. Technician A is right because comparing Steering Axis Inclination (SAI), included angle, and camber angles can indeed help identify issues with the vehicle's suspension and steering components. Technician B is also correct because if the toe-out-on-turns (also known as the turning radius) is incorrect, it can indicate damage or issues with the tie rods, steering arm, or steering knuckle, necessitating their replacement.

Question 7

A vehicle that has excessive setback on the right front is being diagnosed. Technician A says the problem could be caused by a bent lower control arm. Technician B says the problem could be caused by a misaligned front cradle. Who is correct?

Accepted Answer

Both Technician A and Technician B are correct. A bent lower control arm or a misaligned front cradle can cause excessive setback on the right front of a vehicle. These components are integral to the vehicle's suspension and alignment, and damage or misalignment to either can affect the vehicle's stance and wheel positioning.

Question 8

SAI + camber = ______

Accepted Answer

The included angle is the sum of the Steering Axis Inclination (SAI) and the camber angle.

Question 9

____________________ is the distance comparison between the leading edge and trailing edge of the front tires.

Accepted Answer

The answer of ____________________ is the distance comparison between the...

Question 10

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 11

The difference of rear toe from the geometric centerline is called the _____ angle.

Accepted Answer

The difference of rear toe from the geometric centerline is referred to as the thrust angle, which is crucial for proper vehicle alignment.

Question 12

The ____________________ bolt and cam assembly is often used to adjust camber and caster settings.

Accepted Answer

The answer of The ____________________ bolt and cam assembly is...

Question 13

Excessive toe-in will cause ______.

Accepted Answer

Excessive toe-in causes the tires to scrub against the road surface, leading to a sawtooth pattern on the tread and excessive wear on the outer edge of the tire.

Question 14

Which problem is not caused by excessive positive caster ?

Accepted Answer

Poor steering return is typically caused by insufficient positive caster, not excessive positive caster.

Question 15

The difference of the sum of the rear toe from the geometric centerline of the vehicle is called the ____________________ angle.

Accepted Answer

The answer of The difference of the sum of the...

Question 16

Which of the following is NOT a method for adjusting caster or camber?

Accepted Answer

Adjusting sleeves are typically used for adjusting toe, not caster or camber.

Question 17

Which angle has the greatest effect on tire wear?

Accepted Answer

Toe angle has the greatest effect on tire wear because incorrect toe alignment causes the edges of the tire to wear prematurely due to the tire scrubbing sideways as it rolls down the road.

Question 18

The outside edge of the right front tire is worn, but the center and inside edges are almost new. The wear on the outside surface is smooth and not scalloped, feathered, or sawtoothed. The left-side tire shows no sign of wear. What could be the problem?

Accepted Answer

Incorrect camber is the likely cause of wear on the outside edge of a tire. When the camber setting is too positive, it causes the top of the tire to tilt outward, leading to excessive wear on the outer edge.

Question 19

A vehicle is being aligned that has too much positive camber and too little positive caster on the left front wheel. The vehicle has an adjustable strut mount that allows for both caster and camber adjustment. In what direction should the mount be moved?

Accepted Answer

To reduce positive camber, the mount should be moved inward. To increase positive caster, the mount should be moved rearward.

Question 20

Technician A says cross caster is the difference between the left-side and right-side caster. Technician B says excessive negative caster can be corrected by moving the upper ball joint, or strut mount, forward. Who is correct?

Accepted Answer

The answer of Technician A says cross caster is the...

Quiz 49: Wheel Alignment