Question 1

On a MacPherson strut front suspension with an adjustable upper control arm mount, explain the necessary mount movement to decrease positive caster.

Accepted Answer

Move the upper strut mount toward the front of the vehicle to decrease positive caster.

Question 2

What type of tire wear occurs if the toe setting is excessively positive?

Accepted Answer

Outside tire edge wear.

Question 3

Proper ride height adjustment is very important to maintain vehicle directional control and  safety.

Accepted Answer

A) True 
 B)False  False

Question 4

Why is a four-wheel alignment essential on vehicles with independent or semi-independent rear suspension systems?

Accepted Answer

Cars with independent or semi-independen

Question 5

Improper caster adjustment results in feathered tire wear.

Accepted Answer

A) True 
 B)False

Question 6

What effect does negative camber have on tire tread wear?

Accepted Answer

The inside

Question 7

What effect does negative front wheel caster have on the vehicle?

Accepted Answer

It decreases directi

Question 8

The imaginary line extending forward at a 90 degree angle from the center of the rear axle is called what?

Accepted Answer

The answer of The imaginary line extending forward at a...

Question 9

During a road test on a front-wheel drive vehicle, it is determined that the vehicle pulls right after a right turn, and pulls left after a left turn. The most likely cause of this condition is:

Accepted Answer

A)  A binding upper strut bearing 
B)  Excessive lower ball joint play 
C)  Excessive positive caster 
D)  A misaligned subframe/cradle assembly 
A)  A binding upper strut bearing 
B)  Excessive lower ball joint play 
C)  Excessive positive caster 
D)  A misaligned subframe/cradle assembly

Question 10

Diagonal wear lines on the rear tires could be caused by what?

Accepted Answer

A)  Toe angle error 
B)  Camber angle error 
C)  Wheel offset 
D)  Ride height error 
A)  Toe angle error 
B)  Camber angle error 
C)  Wheel offset 
D)  Ride height error

Question 11

Steering pull to the right occurs only when braking. The most likely cause of this problem is:

Accepted Answer

A)  Excessive positive camber on the left-front wheel 
B)  Excessive positive caster on the right-front wheel 
C)  Excessive toe-out on the right-front wheel 
D)  A loose strut rod bushing on the right-front suspension 
A)  Excessive positive camber on the left-front wheel 
B)  Excessive positive caster on the right-front wheel 
C)  Excessive toe-out on the right-front wheel 
D)  A loose strut rod bushing on the right-front suspension

Question 12

What type of front-wheel toe setting are many rear-wheel drive vehicles set to?

Accepted Answer

Slight toe

Question 13

How does positive caster provide for increased steering wheel return force?

Accepted Answer

With positive caster, the front spindles

Question 14

Front wheel camber is measured with the front wheels turned to the right.

Accepted Answer

A) True 
 B)False

Question 15

If the thrust line is positioned to the right of the geometric centerline of the vehicle, the steering wheel will be pulled toward what direction?

Accepted Answer

The answer of If the thrust line is positioned to...

Question 16

What is the camber angle if the centerline of the tire and wheel is tilted inward in relation to the true vertical centerline of the tire and wheel?

Accepted Answer

The front

Question 17

Technician A says excessive toe-out (negative) on a front wheel causes rapid wear on the inside edge of the tire tread. Technician B says excessive positive camber on a front wheel causes premature wear on the outside edge of the tire tread. Who is correct?

Accepted Answer

A)  A only 
B)  B only 
C)  Both A and B 
D)  Neither A nor B 
A)  A only 
B)  B only 
C)  Both A and B 
D)  Neither A nor B

Question 18

What effect will an incorrect rear wheel thrust angle have on the front suspension?

Accepted Answer

A)  It will affect steering wheel position 
B)  Steering shimmy 
C)  Cause camber tire wear 
D)  Affect front steering axis inclination 
A)  It will affect steering wheel position 
B)  Steering shimmy 
C)  Cause camber tire wear 
D)  Affect front steering axis inclination

Question 19

Explain the geometric centerline and the proper position of the front and rear wheels in relation to this centerline.

Accepted Answer

The geometric centerline is an imaginary

Question 20

When the steering linkage is positioned in front of the steering axle of the front wheels, driving force tends to do what to the steering linkage?

Accepted Answer

Stretch the linkage

On a MacPherson strut front suspension with an adjustable upper control arm mount, explain the necessary mount movement to decrease positive caster.

What type of tire wear occurs if the toe setting is excessively positive?

Proper ride height adjustment is very important to maintain vehicle directional control and safety.

Why is a four-wheel alignment essential on vehicles with independent or semi-independent rear suspension systems?

Improper caster adjustment results in feathered tire wear.

What effect does negative camber have on tire tread wear?

What effect does negative front wheel caster have on the vehicle?

The imaginary line extending forward at a 90 degree angle from the center of the rear axle is called what?

During a road test on a front-wheel drive vehicle, it is determined that the vehicle pulls right after a right turn, and pulls left after a left turn. The most likely cause of this condition is:

Diagonal wear lines on the rear tires could be caused by what?

Steering pull to the right occurs only when braking. The most likely cause of this problem is:

What type of front-wheel toe setting are many rear-wheel drive vehicles set to?

How does positive caster provide for increased steering wheel return force?

Front wheel camber is measured with the front wheels turned to the right.

If the thrust line is positioned to the right of the geometric centerline of the vehicle, the steering wheel will be pulled toward what direction?

What is the camber angle if the centerline of the tire and wheel is tilted inward in relation to the true vertical centerline of the tire and wheel?

Technician A says excessive toe-out (negative) on a front wheel causes rapid wear on the inside edge of the tire tread. Technician B says excessive positive camber on a front wheel causes premature wear on the outside edge of the tire tread. Who is correct?

What effect will an incorrect rear wheel thrust angle have on the front suspension?

Explain the geometric centerline and the proper position of the front and rear wheels in relation to this centerline.

When the steering linkage is positioned in front of the steering axle of the front wheels, driving force tends to do what to the steering linkage?

Suspension and Steering Systems

Basic Theories

Tires and Wheels

Wheel Bearings

Shock Absorbers and Struts

Front Suspension Systems

Rear Suspension Systems

Steering Columns and Steering Linkage Mechanisms

Four Wheel Alignment Part 2 Diagnostic Angles and Frame Damage

Computer Controlled Suspension Systems

Power Steering Pumps

Rack and Pinion Steering Gears and Four Wheel Steering

Recirculating Ball Steering Gears

Filters

Exam 9: Four Wheel Alignment Part 1 Primary Angles

On a MacPherson strut front suspension with an adjustable upper control arm mount, explain the necessary mount movement to decrease positive caster.

What type of tire wear occurs if the toe setting is excessively positive?

Proper ride height adjustment is very important to maintain vehicle directional control and safety.

Why is a four-wheel alignment essential on vehicles with independent or semi-independent rear suspension systems?

Improper caster adjustment results in feathered tire wear.

What effect does negative camber have on tire tread wear?

What effect does negative front wheel caster have on the vehicle?

The imaginary line extending forward at a 90 degree angle from the center of the rear axle is called what?

During a road test on a front-wheel drive vehicle, it is determined that the vehicle pulls right after a right turn, and pulls left after a left turn. The most likely cause of this condition is:

Diagonal wear lines on the rear tires could be caused by what?

Steering pull to the right occurs only when braking. The most likely cause of this problem is:

What type of front-wheel toe setting are many rear-wheel drive vehicles set to?

How does positive caster provide for increased steering wheel return force?

Front wheel camber is measured with the front wheels turned to the right.

If the thrust line is positioned to the right of the geometric centerline of the vehicle, the steering wheel will be pulled toward what direction?

What is the camber angle if the centerline of the tire and wheel is tilted inward in relation to the true vertical centerline of the tire and wheel?

Technician A says excessive toe-out (negative) on a front wheel causes rapid wear on the inside edge of the tire tread. Technician B says excessive positive camber on a front wheel causes premature wear on the outside edge of the tire tread. Who is correct?

What effect will an incorrect rear wheel thrust angle have on the front suspension?

Explain the geometric centerline and the proper position of the front and rear wheels in relation to this centerline.

When the steering linkage is positioned in front of the steering axle of the front wheels, driving force tends to do what to the steering linkage?

Suspension and Steering Systems

Basic Theories

Tires and Wheels

Wheel Bearings

Shock Absorbers and Struts

Front Suspension Systems

Rear Suspension Systems

Steering Columns and Steering Linkage Mechanisms

Four Wheel Alignment Part 2 Diagnostic Angles and Frame Damage

Computer Controlled Suspension Systems

Power Steering Pumps

Rack and Pinion Steering Gears and Four Wheel Steering

Recirculating Ball Steering Gears

Filters