ASE A4 Suspension & Steering Practice
Exam Questions And Correct Answers
(Verified Answers) Plus Rationales 2026
Q&A | Instant Download Pdf
1. Which component is primarily responsible for controlling lateral
movement of the vehicle body?
A. Shock absorber
B. Coil spring
C. Sway bar (stabilizer bar)
D. Control arm
Rationale: The sway bar connects opposite wheels and resists body
roll during cornering, controlling lateral movement.
2. What is the primary function of a MacPherson strut?
A. Steering control
B. Suspension support and damping
C. Brake force distribution
, D. Wheel alignment
Rationale: MacPherson struts combine a shock absorber with a coil
spring, supporting the vehicle and controlling suspension motion.
3. A vehicle pulls to the left while driving straight on a level road. What is
the most likely cause?
A. Low engine oil
B. Bad wheel bearings
C. Incorrect wheel alignment
D. Loose sway bar
Rationale: Misalignment, especially toe or camber issues, can cause
the vehicle to drift to one side.
4. Which type of steering system uses a hydraulic piston to assist turning
effort?
A. Rack-and-pinion
B. Manual recirculating ball
C. Hydraulic power steering
D. Electric assist only
Rationale: Hydraulic power steering uses fluid pressure to reduce
steering effort.
5. What is the purpose of a ball joint in a suspension system?
A. Control spring rate
B. Allow pivoting of control arms for steering and suspension
movement
, C. Reduce brake fade
D. Absorb shocks
Rationale: Ball joints provide a pivot point for control arms while
allowing steering and suspension articulation.
6. A vehicle with independent front suspension exhibits uneven tire wear
on the inside edge. What is the likely cause?
A. Loose tie rod ends
B. Incorrect camber angle
C. Worn shock absorbers
D. Low tire pressure
Rationale: Negative or excessive camber causes tires to wear more
on the inner edge.
7. Which component connects the steering gear to the steering knuckle?
A. Control arm
B. Pitman arm
C. Sway bar link
D. Tie rod
Rationale: Tie rods transmit steering input from the gear to the
wheels.
8. When inspecting a strut assembly, a technician notices oil leakage.
What should be done?
A. Top off with engine oil
B. Replace the strut
, C. Clean the strut and continue
D. Tighten mounting bolts only
Rationale: Oil leakage indicates the strut is no longer damping
properly and must be replaced.
9. What is the main purpose of a shock absorber?
A. Reduce engine vibration
B. Control spring oscillation and vehicle bounce
C. Improve braking efficiency
D. Maintain tire pressure
Rationale: Shock absorbers dampen the up-and-down motion of
springs for ride comfort and control.
10. A vehicle exhibits excessive body roll during turns. Which
component should be inspected?
A. Ball joints
B. Tie rods
C. Sway bar and sway bar links
D. Control arm bushings
Rationale: The sway bar reduces body roll, and worn links or
bushings can increase roll.
11. What is the primary function of a control arm bushing?
A. Connects wheel hub to axle
B. Absorbs suspension vibrations and allows pivoting
C. Maintains tire pressure
Exam Questions And Correct Answers
(Verified Answers) Plus Rationales 2026
Q&A | Instant Download Pdf
1. Which component is primarily responsible for controlling lateral
movement of the vehicle body?
A. Shock absorber
B. Coil spring
C. Sway bar (stabilizer bar)
D. Control arm
Rationale: The sway bar connects opposite wheels and resists body
roll during cornering, controlling lateral movement.
2. What is the primary function of a MacPherson strut?
A. Steering control
B. Suspension support and damping
C. Brake force distribution
, D. Wheel alignment
Rationale: MacPherson struts combine a shock absorber with a coil
spring, supporting the vehicle and controlling suspension motion.
3. A vehicle pulls to the left while driving straight on a level road. What is
the most likely cause?
A. Low engine oil
B. Bad wheel bearings
C. Incorrect wheel alignment
D. Loose sway bar
Rationale: Misalignment, especially toe or camber issues, can cause
the vehicle to drift to one side.
4. Which type of steering system uses a hydraulic piston to assist turning
effort?
A. Rack-and-pinion
B. Manual recirculating ball
C. Hydraulic power steering
D. Electric assist only
Rationale: Hydraulic power steering uses fluid pressure to reduce
steering effort.
5. What is the purpose of a ball joint in a suspension system?
A. Control spring rate
B. Allow pivoting of control arms for steering and suspension
movement
, C. Reduce brake fade
D. Absorb shocks
Rationale: Ball joints provide a pivot point for control arms while
allowing steering and suspension articulation.
6. A vehicle with independent front suspension exhibits uneven tire wear
on the inside edge. What is the likely cause?
A. Loose tie rod ends
B. Incorrect camber angle
C. Worn shock absorbers
D. Low tire pressure
Rationale: Negative or excessive camber causes tires to wear more
on the inner edge.
7. Which component connects the steering gear to the steering knuckle?
A. Control arm
B. Pitman arm
C. Sway bar link
D. Tie rod
Rationale: Tie rods transmit steering input from the gear to the
wheels.
8. When inspecting a strut assembly, a technician notices oil leakage.
What should be done?
A. Top off with engine oil
B. Replace the strut
, C. Clean the strut and continue
D. Tighten mounting bolts only
Rationale: Oil leakage indicates the strut is no longer damping
properly and must be replaced.
9. What is the main purpose of a shock absorber?
A. Reduce engine vibration
B. Control spring oscillation and vehicle bounce
C. Improve braking efficiency
D. Maintain tire pressure
Rationale: Shock absorbers dampen the up-and-down motion of
springs for ride comfort and control.
10. A vehicle exhibits excessive body roll during turns. Which
component should be inspected?
A. Ball joints
B. Tie rods
C. Sway bar and sway bar links
D. Control arm bushings
Rationale: The sway bar reduces body roll, and worn links or
bushings can increase roll.
11. What is the primary function of a control arm bushing?
A. Connects wheel hub to axle
B. Absorbs suspension vibrations and allows pivoting
C. Maintains tire pressure
