Servicing The Suspension System
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Chapter 29
- 1.The _______________ connect(s) the wheels to the suspension and steering system.
- A.
Pitman arm
- B.
Inner tie rods
- C.
Steering knuckle
- D.
Idler arm
- 2.Tech A says MacPherson strut assemblies are often changed because the vehicle bounces too much on irregular roads. Tech B says on some models, the alignment must be checked after new MacPherson struts are installed. Who is right?
- A.
A. Tech A
- B.
B. Tech B
- C.
C. Both techs
- D.
D. Neither tech
- 3.The thrust angle on a front-wheel drive vehicle is more than specified, and the thrust line is positioned to the left of the geometric centerline. This problem could be caused by:
- A.
A. Excessive toe-out on the left rear wheel
- B.
B. Excessive toe-out on the right rear wheel
- C.
C. Excessive positive camber on the left rear wheel
- D.
D. Excessive wear in the left rear lower ball joint
- 4.A four wheel drive vehicle suffers from excessive road shock at the steering wheel while driving on irregular road surfaces. Tech a says the power steering gear spool valve may be damaged. Tech B says the steering damper may be worn out. Who is right?
- A.
A. Tech A
- B.
B. Tech B
- C.
C. Both techs
- D.
D. Neither tech
- 5.A vehicle has excessive body swat while cornering. All of the following defects could be the cause of the problem EXCEPT:
- A.
A. A worn strut rod bushing
- B.
B. A weak stabilizer bar
- C.
C. A worn stabilizer bar bushing
- D.
D. A broken stabilizer link
- 6.When unloading the ball joints on a front suspension with the coil spring located between the lower control arm and the frame:
- A.
A. A safety stand must be placed under the chassis
- B.
B. The shock absorber must be disconnected
- C.
C. The sway bar link bushings must be disconnected
- D.
D. A safety stand must be placed under the lower control arm
- 7.A vehicle has excessive inside tire wear on the right rear tire. The cause of this problem could be:
- A.
A. A bent rear spindle
- B.
B. Excessive negative caster
- C.
C. Excessive positive camber
- D.
D. Worn out front struts
- 8.All of the following statements about caster adjustment are true EXCEPT:
- A.
A. The caster angle is measured with the front wheels straight ahead
- B.
B. The front wheels are turned a specified number of degrees left and right to read the caster angle
- C.
C. The brakes must be applied with a brake pedal depressor before reading the caster angle
- D.
D. The front suspension should be jounced several times before reading the caster angle
- 9.While performing an alignment on a front wheel drive vehicle, the technician notices that caster is out of specification and that caster is not adjustable on the vehicle. Which of the following should the tech do first?
- A.
A. Replace both front strut assemblies
- B.
B. Heat and bend the lower control arms
- C.
C. Check the cradle(subframe) alignment
- D.
D. Measure thrust angle
- 10.A vehicle pulls to the left while driving straight ahead. The cause of the problem could be:
- A.
A. Inadequate caster on the left front wheel
- B.
B. Excessive positive caster on the left front wheel
- C.
C. Excessive toe in
- D.
D. Improper toe out on turns on the right front wheel
- 11.
- A.
Technician A only
- B.
Technician B only
- C.
Both Technician A & Technician B
- D.
Neither Technician A or Technician B
- 12.Two technicians are discussing suspension springs. Technician A says that vehicles with leaf springs need control arms or struts to prevent lateral movement of the axle. Technician B says that vehicles with coil springs need control rods or struts to prevent lateral movement. Who is correct?
- A.
Technician A only
- B.
Technician B only
- C.
Both Technician A & Technician B
- D.
Neither Technician A or Technician B
- 13.Tech A says that the steering column transfers the linear movement of the steering wheel to the steering knuckle. Tech B says that the steering wheel transmits the driver's steering effort from the steering wheel to the steering box. Who is correct?
- A.
Tech A
- B.
Tech B
- C.
Both Techs A and B
- D.
Neither Tech A nor B
- 14.The _______________ connect(s) the wheels to the suspension and steering system.
- A.
Pitman arm
- B.
Inner tie rods
- C.
Steering knuckle
- D.
Idler arm
- 15.The __________ connects the pitman arm to the idler arm.
- A.
Center link
- B.
Drag link
- C.
Both A and B
- D.
None of the above
- 16.Tech A says that the main problems in the power steering system are play and leaks. Tech B says that the main problems in the power steering system are play and hard steering. Who is correct?
- A.
Tech A
- B.
Tech B
- C.
Both Techs A and B
- D.
Neither Tech A nor B
- 17.The power steering pump reservoir is:
- A.
Mounted to the pump
- B.
Remotely mounted
- C.
Both A and B
- D.
None of the above
- 18.A tie rod on each side of the vehicle connects each ______________ to the center link.
- A.
Control arm
- B.
Wheel assembly
- C.
Idler arm
- D.
Pitman arm
- 19.What could cause air bubbles in the power steering fluid?
- A.
A. Checking the fluid before it reached operating temperature
- B.
B. Overheated fluid
- C.
C. Engine idling too fast
- D.
D. Low fluid level
- 20.True or False. When a radial tire bulges on the sidewall, this means that the tire is underinflated all the time.
- A.
True
- B.
False
- 21.All of the following are functions of the automotive suspension system EXCEPT:
- A.
Helps provide a smooth ride for passengers
- B.
Keeps tires in firm contact with the road
- C.
Allows the front wheels to turn from side to side for steering
- D.
Allows the body to tilt when heavily loaded
- 22.Tech A says an automotive suspension system works with the steering system to help keep the wheels in correct alignment. Tech B says an automotive suspension system works independently of the steering system and has no effect on the wheel alignment. Who is right?
- A.
Tech A
- B.
Tech B
- C.
Both techs
- D.
Neither tech
- 23.Tech A says a torsion bar fastens to the vehicle's frame. Tech B says a torsion bar fastens to the suspension system control arm. Who is right?
- A.
Tech A
- B.
Tech B
- C.
Both techs
- D.
Neither tech
- 24.Tech A says to inspect the upper control arm ball joint on a MacPherson strut suspension system, the system must be unloaded. Tech B says to inspect the lower ball joint on a MacPherson strut suspension system, the lower ball joint must be unloaded. Who is right?
- A.
Tech A
- B.
Tech B
- C.
Both techs
- D.
Neither tech
- 25.The unsprung mass of a vehicle refers to the:
- A.
Mass supported by the springs.
- B.
Mass of the springs.
- C.
Mass of the wheel and brake assemblies.
- D.
Mass of the top part of the suspension.
- 26.A ______________ fastens the rear of a leaf spring to the car frame.
- A.
Mount
- B.
Bushing
- C.
Shackle
- D.
Nut and bolt
- 27.In a short/long arm type front suspension system how is suspension movement accommodated while still maintaining steering geometry?
- A.
The lower control arm is longer than the upper control arm.
- B.
It moves up and down independently to accommodate movement in the suspension.
- C.
The lower control arm is shorter than the upper control arm.
- D.
It moves up and down in parallel to accommodate movement in the suspension.
- 28.A rear suspension U-bolt:
- A.
Adjusts the spring tension.
- B.
Clamps the leaf spring to the chassis.
- C.
Clamps the leaf spring to the axle housing.
- D.
Separates each leaf of the spring.
- 29.Two technicians are discussing live independent rear axles. Technician A says they use a solid axle tube to support each axle shaft. Technician B says they have a greater amount of unsprung weight than live rigid rear axles. Who is correct?
- A.
Technician A only.
- B.
Technician B only.
- C.
Both Technician A & Technician B.
- D.
Neither Technician A or Technician B.
- 30.________________ are used with coil spring suspensions. They prevent the rear axle moving from side to side without restricting its vertical movement.
- A.
Panhard or track rods
- B.
Sway bars
- C.
Strut supports
- D.
Cross members
- 31.Unsprung mass is all these EXCEPT:
- A.
Wheels.
- B.
Axles.
- C.
Frame.
- D.
Outboard brake assemblies.
- 32.Tech A says a shock absorber dampens spring oscillation. Tech B says there is oil in the shock that heats up as it absorbs the energy of the motion. Who is correct?
- A.
Tech A
- B.
Tech B
- C.
Both Techs A and B
- D.
Neither Tech A nor B
- 33.What type of shock is the most common?
- A.
Gas pressurized
- B.
Twin-tube type
- C.
Air shock
- D.
None of the above
- 34.Tech A says some steering knuckles are made of cast aluminum. Tech B says cast iron is also used for steering knuckles. Who is correct?
- A.
Tech A
- B.
Tech B
- C.
Both Techs A and B
- D.
Neither Tech A nor B
- 35.
- A.
Tech A
- B.
Tech B
- C.
Both Techs A and B
- D.
Neither Tech A nor B
- 36.What type of spring is mounted on a strut suspension system?
- A.
Leaf spring
- B.
Coil spring
- C.
Torsion bar
- D.
None of the above
- 37.What is the drawback of a coil spring suspension on a straight axle?
- A.
Compact design
- B.
Light weight
- C.
No side-to-side or front-to-back stability
- D.
None of the above
- 38.Camber is the:
- A.
Axes between the upper and lower pivots on the control arm.
- B.
Side-to-side vertical tilt of the wheel.
- C.
Axis around which the wheel assembly swivels as it turns.
- D.
angle the steering arms make with the steering axis projected toward the center of the rear axle.
- 39.Positive caster is:
- A.
Forward tilt of the steering axes.
- B.
Backward tilt of the steering axes.
- C.
Outward tilt of the wheel.
- D.
Inward tilt of the wheel.
- 40.Toe is the:
- A.
Wheel tilted out at the top.
- B.
Wheel tilted in at the top.
- C.
The angle of the tires relative to the center of the vehicle when viewed from above.
- D.
Line through the center of the car.
- 41.The scrub radius is:
- A.
What the tire does when turning in a circle.
- B.
The distance between two imaginary points on the road surface between the camber line and the steering axis inclination (SAI) centerline.
- C.
The scuff marks made by car tires.
- D.
None of the above
- 42.The Ackermann principle is:
- A.
When the steering wheel automatically returns to center.
- B.
Where the inside wheels are able to turn at a different radius than the outside wheels.
- C.
The offset of the front wheels.
- D.
The difference in the ride height from front to rear.
- 43.Tech A says setback is not adjustable. Tech B says setback can cause a pull on a front-wheel-drive car. Who is correct?
- A.
Tech A
- B.
Tech B
- C.
Both Techs A and B
- D.
Neither Tech A nor B
- 44.Tech A says a turning radius is how large a circle the vehicle can turn. Tech B says a thrust angle is the average angle of the rear wheels and its relationship to the vehicle's center line. Who is correct?
- A.
Tech A
- B.
Tech B
- C.
Both Techs A and B
- D.
Neither Tech A nor B
- 45.Tech A says excessive tie rod end play is ok when aligning a car. Tech B says the setback typically not adjustable. Who is correct?
- A.
Tech A
- B.
Tech B
- C.
Both Techs A and B
- D.
Neither Tech A nor B
- 46.Tech A says you can adjust camber with shims. Tech B says you can adjust caster with shims. Who is correct?
- A.
Tech A
- B.
Tech B
- C.
Both Techs A and B
- D.
Neither Tech A nor B
- 47.Vehicle wander may be caused by what?
- A.
Worn joints and bushings
- B.
Looseness in steering and suspension components
- C.
Caster angle is off
- D.
All the above
- 48.Ride height may only be checked if the vehicle has:
- A.
Matching tires.
- B.
Properly inflated tires.
- C.
No additional weight in the vehicle.
- D.
All the above
- 49.True or False. When checking shocks, you should bounce the car.
- A.
True
- B.
False
- 50.Tech A says stabilizer bars rarely give problems. Tech B says a broken stabilizer bar will cause a vibration. Who is correct?
- A.
Tech A
- B.
Tech B
- C.
Both Techs A and B
- D.
Neither Tech A nor B
- 51.When checking for a bad shock absorber, you should look for:
- A.
A slight oil film on the shock.
- B.
Excessive oil.
- C.
Worn-out bushings.
- D.
Both B and C
- 52.Tech A says you should replace shocks or struts in pairs. Tech B says it's ok to replace only one shock or strut. Who is correct?
- A.
Tech A
- B.
Tech B
- C.
Both Techs A and B
- D.
Neither Tech A nor B
- 53.If the thrust angle is off bad enough, what animal will your car look like?
- A.
A cat
- B.
A dog
- C.
A racoon
- D.
A snake
- 54.Damage to the cradle of a vehicle can force the wheels out of alignment, possibly changing:
- A.
Caster
- B.
Camber
- C.
Toe
- D.
All of the above
- 55.When doing an alignment, the adjustments need to be made in which specific order?
- A.
Rear caster, rear camber, rear toe, front caster, front camber, front toe
- B.
Front toe, rear toe, front camber, rear camber, front caster, rear caster
- C.
Rear camber, rear toe, front caster, front toe, front camber, rear caster
- D.
Front caster, rear caster, front toe, rear toe, rear camber, front camber
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