Steering Angles

Question 1

When the upper strut mounts on a MacPherson strut vehicle are tilted forward of the lower ball joints, the vehicle has:

a) positive camber
b) negative camber
c) positive caster
d) negative caster

Answer 1

d) negative caster

Question 2

What type of angle is caster?

a) load bearing
b) directional control
c) tire wearing
d) guide or folowing

Answer 2

b) directional control

Question 3

The imaginary line drawn through the centre of the upper and lower ball joints on a conventional steering vehicle is known as the:

a) steering axis
b) datum line
c) reference line
d) line of caster

Answer 3

a) steering axis

Question 4

Caster tends to lean the car into a turn if it is set:

a) with shims
b) toward the front
c) positive
d) negative

Answer 4

d) negative

Question 5

Camber is measured by comparing the wheel angle to:

a) true vertical
b) caster
c) geometric centre line
d) thrust line

Answer 5

a) true vertical

Question 6

If the wheel on a vehicle leans inward at the top, the angle produced is called:

a) positive camber
b) negative camber
c) positive caster
d) negative caster

Answer 6

b) negative camber

Question 7

Excessive camber may cause:

a) tire wear
b) wheel tramp
c) both a and b
d) neither a or b

Answer 7

a) tire wear

Question 8

Uneven side to side camber may cause:

a) tire wear
b) excessive body roll
c) hard steering
d) the car to pull

Answer 8

d) the car to pull

Question 9

The inward tilt of the steering axis (viewed from the front) is called:

a) negative camber
b) positive camber
c) negative SAI
d) steering axis inclination

Answer 9

d) steering axis inclination

Question 10

Included angle in defined as:

a) including caster and camber together
b) steering axis inclination, camber and caster together
c) steering axis inclination and camber
d) point of intersection, true vertical and camber

Answer 10

c) steering axis inclination and camber

Question 11

When camber is zero (0 degrees), SAI:

a) and included angle will be zero (0 degrees) also
b) and included angle will be the same
c) will be positive
d) will be negative

Answer 11

b) and included angle will be the same

Question 12

Turning radius is determined by:

a) the amount of toe-out on turns
b) the steering axis
c) how sharp a turn the car can make
d) the angle of the steering arms

Answer 12

d) the angle of the steering arms

Question 13

Incorrect turning radius may cause:

a) tire squeal
b) tire wear
c) both a and b
d) neither a or b

Answer 13

c) both a and b

Question 14

When measuring turning radius, if the inside wheel is turned in 20 degrees, the outside wheel should turn:

a) the same to avoid tire wear
b) more
c) less
d) out 18 1/2 degrees

Answer 14

c) less

Question 15

If turning radius specs are not published:

a) it is not necessary to measure it
b) measurements should be compared side to side
c) the vehicle may not have turning radius
d) use specs from a similar vehicle

Answer 15

b) measurements should be compared side to side

Question 16

The purpose of the toe angle is to:

a) maximize tire life
b) compensate for any deflection in the steering linkage
c) both a and b
d) neither a or b

Answer 16

c) both a and b

Question 17

When the vehicle is in motion, ideally the toe setting should be:

a) the same front to rear
b) zero degrees
c) slightly in
d) slightly out

Answer 17

b) zero degrees

Question 18

Incorrect toe setting may cause:

a) a pull to the side that is most positive
b) instability at high speeds
c) rapid tire wear
d) a pull to the side that is most negative

Answer 18

c) rapid tire wear

Question 19

Excessive toe-out causes:

a) a pull to the right
b) a pull to the left
c) scuffing wear from outside to inside
d) scuffing wear from inside to outside

Answer 19

d) scuffing wear from inside to outside

Question 20

The vehicle thrust line is determined by the:

a) rear toe
b) tracking
c) turning radius
d) front toe

Answer 20

a) rear toe

Question 21

If the thrust line is off to the right the vehicle will:

a) pull to the left
b) pull to the side with the shortest wheelbase
c) dog track
d) all of the above

Answer 21

d) all of the above

Question 22

The direction the vehicle will travel in is determined by the:

a) thrust line
b) vehicle centre line
c) geometric centre line
d) all of the above

Answer 22

a) thrust line

Question 23

Moving the top of the MacPherson strut rearward will cause the:

a) caster to move more positive
b) camber to move more negative
c) caster to move more negative
d) camber to move more positive

Answer 23

a) caster to move more positive

Question 24

Adding a shim with the thickest portion at the top between the rear spindle and axle will cause the:

a) camber to move more positive
b) camber to move more negative
c) toe to move more negative
d) toe to move more positive

Answer 24

a) camber to move more positive

Question 25

Lengthening a front-mounted strut rod will increase:

a) positive camber
b) positive caster
c) negative camber
d) negative caster

Answer 25

d) negative caster