Deck 6: Front Suspension Systems

Question 1

Technician A says that a problem with the vehicle ride (curb) height does not affect a vehicle's alignment. Technician B says that incorrect rear (curb) ride height could be corrected by installing new springs. Who is correct?

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

Answer 1

B

Question 2

Improper curb riding height affects other suspension alignment angles.

Answer 2

True

Question 3

While a vehicle is taken for a test drive, a loud clunking noise is heard from the right front of the vehicle only during hard brake maneuvers. What is the most likely cause?

A) A worn strut rod bushing
B) A worn rack and pinion mounting bushing
C) A loose sway bar link
D) A loose right front shock absorber

Answer 3

A

Question 4

A 300-pound load deflects a linear-rate coil spring 1 inch. A 600-pound load will deflect the same spring how much in total?

A) 1 inch
B) 2 inches
C) 3 inches
D) 4 inches

Question 5

Monoleaf springs may be manufactured from fiberglass.

Question 6

Technician A says that in some short-and-long arm front suspension systems, the coil springs are mounted between the lower control arm and the chassis. Technician B says that in this type of suspension system, the upper ball joints are the load-carrying ball joints. Who is correct?

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

Question 7

In a short-and-long arm front suspension with a tension bar-loaded lower ball joint, the ball joint is mounted so the ball joint stud extends upward through the steering knuckle.

Question 8

The ball joint nut should not be backed off to install the cotter pin though the castle nut.

Question 9

When measuring ball joint wear on a short-and-long arm front suspension system with the coil springs between the lower control arms and the chassis, a floor jack should be placed under the frame to lift the suspension.

Question 10

Worn or damaged jounce or rebound bumpers may be caused by reduced curb riding height.

Question 11

When the center of a front wheel viewed from the side is tilted rearward from the true vertical center of the wheel, this alignment angle referred to as:

A) Positive camber
B) Negative camber
C) Positive scrub radius
D) Positive caster

Question 12

Some current vehicles have aluminum steering knuckles to reduce unsprung weight.

Question 13

Technician A says that vehicle ride height could be affected by worn shock absorbers. Technician B says that vehicle ride height could be affected by tire pressure or incorrect tire size. Who is correct?

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

Question 14

Technician A says when a vehicle is carrying a continually heavy load, the vehicle should be equipped with heavy-duty coil springs. Technician B says automatic load leveling is a function of variable rate springs. Who is correct?

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

Question 15

A MacPherson strut front suspension requires more mounting space than a short-and-long arm front suspension.

Question 16

Technician A says front curb riding height is reduced by worn control arm bushings. Technician B says front curb riding height is reduced by weak coil springs. Who is correct?

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

Question 17

Technician A says heavy-duty and regular coil springs have the same wire diameter. Technician B says a heavy-duty coil spring has a shorter free height than a regular-duty coil spring. Who is correct?

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

Question 18

Excessive positive camber results in rapid wear on the inside edge of the tire tread.

Question 19

In some front suspension systems, torsion bars perform the same functions as coil springs.

Question 20

Technician A says that some vehicles are equipped with aluminum stabilizer bars to reduce unsprung weight. Technician B says that some vehicles are equipped with hollow stabilizer bars to reduce unsprung weight. Who is correct?

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

Question 21

The most likely cause of excessive body lean and sway while cornering is:

A) A broken stabilizer link
B) Sagged coil springs
C) Worn strut rod bushings
D) Worn upper control arm bushings

Question 22

A vehicle has sagged rear springs and reduced rear curb riding height. This problem results in:

A) Excessive positive camber on the front wheels
B) Excessive toe-out on the front wheels
C) Excessive positive caster on the front wheels
D) Excessive toe-in on the front wheels

Question 23

All of these statements about heavy-duty coil springs are true EXCEPT:

A) Larger wire diameter than regular duty coil springs
B) 3 to 5 percent more load-carrying capacity than regular duty coil springs
C) Shorter free length than regular duty coil springs
D) A high aluminum content in the spring material

Question 24

What is the most accurate ball joint measuring tool that should be used?

Question 25

Technician A says when measuring vertical ball joint wear, pry upward with a steel bar under the front tire and observe the dial indicator reading. Technician B says when measuring lateral ball joint wear, grasp the tire at the top and bottom and try to force the tire inward and outward and observe the dial indicator reading. Who is correct?

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

Question 26

On a vehicle equipped with rear parallel leaf springs and a solid rear axle, the customer is complaining that the vehicle reacts erratically (it darts) during turns. What is the most likely cause of this complaint?

A) Incorrect ride height
B) Incorrect drive line angle
C) Loose rear axle U-bolts
D) Missing jounce/rebound bumpers

Question 27

What does the strut rod prevent the lower control arm from doing?

Question 28

Technician A says damaged jounce or rebound bumpers may be caused by worn-out shock absorbers. Technician B says damaged jounce or rebound bumpers may be caused by sagged coil springs. Who is correct?

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

Question 29

What do variable rate springs provide that linear rate springs do not?

Question 30

Technician A says a ball joint stud could become broken if there is an out-of-round taper in the steering knuckle mounting hole. Technician B says a ball joint stud could become broken if the ball joint nut was incorrectly torqued. Who is correct?

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

Question 31

When one front wheel strikes a road irregularity, what component helps to reduce body roll?

Question 32

Explain the effects of a sagged front spring.

Question 33

Technician A says in a torsion bar front suspension, the front end of the torsion bar is always attached to the upper control arm. Technician B says in a torsion bar front suspension, a torsion bar adjustment mechanism is mounted where the rear end of the torsion bar is attached to the chassis. Who is correct?

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

Question 34

If a front spring is sagged, front wheel camber will move toward what direction?

Question 35

Types of ball joint mounting in the lower control arm include all of these EXCEPT:

A) Welded
B) Threaded
C) Riveted
D) Press-fit

Question 36

How can you determine if a ball joint is a load-carrying joint?

Question 37

The most likely cause of repeated front coil spring breakage is:

A) A weak stabilizer bar
B) Worn control arm bushings
C) Constant overloading
D) Worn shock absorber bushings

Question 38

In a variable rate spring, what coils operate during the complete range of spring load?

Question 39

If both front springs are sagged, front wheel caster will move toward what direction?

Question 40

What can occur if the control arm bushing bolts are tightened while the vehicle is on a lift and not at vehicle ride height?

Question 41

Identify the  components  1 through 10 in the image below:

Question 42

Explain torsion bar action during wheel jounce and rebound.

Question 43

Define camber angle.

Question 44

Explain caster angle.

Question 45

Explain the design and purpose of a monoleaf spring.

Question 46

Describe the type of vehicle load condition that requires variable-rate springs.

Question 47

Identify the  components  1 through  7 in the image below:
  

Question 48

Describe the differences between heavy-duty and regular-duty coil springs.