ASE A4 Steering and Suspension Practice Test

46. Which of the following is true about lower control arms?

  • A. They are located between the frame and the steering knuckle.
  • B. Worn control arm bushings result in wheel shimmy.
  • C. Torque the control arms to the frame with the vehicle raised and the air.
  • D. Both A or B

46.

Answer A is wrong. Control arms connect the vehicle's framework to the steering knuckle and wheel assembly. Answers A and B are both correct.

Answer B is wrong. A worn, cracked, or compressed rubber bushing can cause looseness and change alignment angles, resulting in wheel shimmy, tire wear, and vibration in the steering wheel.

Answer C is wrong. Most manufacturers require the control arm's final torque completed with the vehicle at rest on the ground. Failing to do so will twist the rubber bushing while the vehicle rests, resulting in premature failure.

Answer D is correct. Both A and B are correct.

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47. The rear suspension of a light truck with rear leaf springs is noisy, and the left rear is sagging. Technician A says a broken leaf spring center bolt will result in this condition. Technician B says the sagging leaf spring will alter the truck's wheel alignment angles. Who is correct?

  • A. Technician A
  • B. Technician B
  • C. Both A and B
  • D. Neither A or B

47.

Technician A is wrong. Loose and damaged U-bolts result in a broken center bolt and loose and damaged leaf springs. A broken center bolt or pin results in axle offset and wheel setback, affecting the vehicle's alignment angles.

Technician B is wrong. Steering and suspension are interrelated. Sagging leaf springs change wheel alignment angles, cause dog tracking, and an off-center steering wheel.

Answer C is correct. Both technicians are correct.

Answer D is wrong. Both technicians are correct.

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48. The LEAST likely to result in memory steer is a binding:

  • A. Ball joint.
  • B. Steering gear.
  • C. Upper strut mount.
  • D. Wheel bearing.

48.

Answer A is wrong. This is a LEAST likely question. A binding ball joint causes memory steer.

Answer B is wrong. A binding steering gear causes memory steer.

Answer C is wrong. A binding upper strut mount causes memory steer.

Answer D is correct. Wheel bearings cause a growling noise that increases with vehicle speed and changes pitch during turns. If a wheel bearing were binding, there would be a grinding sound when rotating the wheel.

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49. The steering column squeaks while turning the steering wheel in either direction. All of the following components will result in a noisy steering column EXCEPT:

  • A. The steering shaft universal joint.
  • B. The clockspring.
  • C. The steering column bearings.
  • D. The horn switch.

49.

Answer A is wrong. The steering shaft universal joint connects the stub of the steering column to the steering gear. They become loose or bind, resulting in excessive noise.

Answer B is wrong. The clockspring connects the steering column, the airbag, and the steering wheel's accessories.

Answer C is wrong. The steering column has a clockspring, universal joints, and a shaft with vibration insulators and bearings at the top and bottom.

Answer D is correct. The horn switch is stationary and does not make a noise when the wheel is turned.

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50. A vehicle’s left front tire has excessive wear on its outside tread. Technician A says excessive positive caster has most likely caused the outside tire wear. Technician B says excessive positive camber results in outside tire wear. Who is correct?

  • A. Technician A
  • B. Technician B
  • C. Both A and B
  • D. Neither A or B
Tire wear caused by the camber angle.

50.

Answer A is wrong. Caster is viewed from the side of the vehicle. It's the forward or rearward tilt of the steering axis. A positive caster provides steering wheel returnability and greater stability. Too much caster affects steering wheel return to center and can result in wheel shimmy.

Answer B is correct. A negative camber angle will result in tire wear on the inside of the tire. Positive camber results in tire wear on the outside tread of the tire. A vehicle will pull to the side with the most positive camber while driving forward.

Answer C is wrong. Technician B is correct.

Answer D is wrong. Technician B is correct.

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