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100+ Free ASE S5 Suspension & Steering (School Bus) Practice Questions

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A school bus wheel was retorqued after the first service miles because:

A
B
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D
to track
2026 Statistics

Key Facts: ASE S5 Suspension & Steering (School Bus) Exam

50 scored

Scored Multiple-Choice Questions (60 total)

ASE School Bus test series

75 min

Testing Time

ASE School Bus test series

~$59

ASE Test Fee

ASE registration

36 / 36 / 16 / 12

Content Area Distribution

ASE S5 task list

2 years

Work Experience Requirement

ASE certification requirements

Prometric

Test Administrator

ASE / Prometric

ASE S5 (Suspension & Steering, School Bus) is a criterion-referenced ASE certification test delivered at Prometric. The official exam contains 50 scored multiple-choice questions out of 60 total in 75 minutes, with content weighted 36% Steering System Diagnosis & Repair, 36% Suspension Systems Diagnosis & Repair, 16% Wheel Alignment Diagnosis/Adjustment/Repair, and 12% Wheels & Tires Diagnosis & Repair. Candidates typically need two years of relevant work experience (training can substitute for part of it).

Sample ASE S5 Suspension & Steering (School Bus) Practice Questions

Try these sample questions to test your ASE S5 Suspension & Steering (School Bus) exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1A school bus exhibits hard steering only when the engine is cold, improving as it warms up. Tech A says a worn power steering pump can cause this. Tech B says cold, thick power steering fluid combined with a partially restricted hose can cause temporary hard steering. Who is correct?
A.Tech A only
B.Tech B only
C.Both Tech A and Tech B
D.Neither Tech A nor Tech B
Explanation: A worn pump that cannot build full pressure causes hard steering, often worse when cold. Cold, viscous fluid moving through a restricted hose also reduces assist until the system warms. Both technicians describe valid causes.
2During a kingpin inspection on a school bus front axle, the technician finds excessive vertical (up-and-down) play at the steering knuckle. This wear most directly indicates a worn:
A.Thrust bearing or shims at the kingpin
B.Tie-rod end socket
C.Drag link ball stud
D.Pitman arm spline
Explanation: Vertical play at the knuckle on a kingpin-type axle points to a worn or improperly shimmed thrust bearing that normally carries axle weight and controls end play. Horizontal (radial) play indicates worn kingpin bushings instead.
3A school bus integral power steering gear leaks fluid from the sector shaft seal. The most likely root cause to check before simply replacing the seal is:
A.A loose steering wheel nut
B.A worn sector shaft or bushing letting the shaft move
C.An overfilled reservoir only
D.A bent pitman arm
Explanation: A repeat sector-shaft seal leak is commonly caused by a worn sector shaft or bushing that lets the shaft move and damage the new seal, or by excessive relief pressure. Inspecting these prevents a comeback after reseal.
4What is the primary purpose of the steering damper (stabilizer) sometimes used on school bus front steering linkage?
A.To increase power steering assist
B.To set the steering gear preload
C.To dampen road shock and reduce steering wheel kickback and shimmy
D.To control vehicle ride height
Explanation: A steering damper is essentially a horizontal shock absorber on the linkage. It absorbs road shock and helps control front-wheel shimmy and steering kickback, improving driver comfort and control.
5A school bus wanders and requires constant steering correction. Tech A says worn drag link or tie-rod ends can cause this. Tech B says excessive steering gear lash at center can also cause wander. Who is correct?
A.Tech A only
B.Tech B only
C.Both Tech A and Tech B
D.Neither Tech A nor Tech B
Explanation: Worn linkage joints allow the wheels to move independently of driver input, causing wander. Excessive on-center lash in the steering gear lets the wheels drift before the gear responds. Both conditions produce wander.
6When checking power steering fluid that is dark and smells burnt on a school bus, the technician should:
A.Top off with any available fluid and release the bus
B.Ignore it because color does not matter
C.Add stop-leak additive
D.Flush the system and inspect the pump and gear for internal wear
Explanation: Dark, burnt-smelling power steering fluid indicates overheating and internal component wear or contamination. Flushing the system and inspecting the pump and gear identifies failing parts before they cause a loss of assist.
7A school bus pulls to one side only during braking but tracks straight otherwise. The steering-system component most worth inspecting along with the brakes is the:
A.Worn or loose suspension/steering linkage that shifts under braking load
B.Steering wheel clock spring
C.Power steering reservoir cap
D.Tilt steering column lock
Explanation: A pull only under braking is usually a brake-balance issue, but worn linkage or loose components can shift wheel position under deceleration load and contribute. Inspecting linkage alongside the brakes covers both possibilities.
8The correct method to check tie-rod end wear on a school bus is to:
A.Pry between the frame and axle
B.Grip the tie rod and apply hand force while watching/feeling for play in the stud and socket
C.Measure power steering pressure
D.Check ride height at the rear axle
Explanation: Tie-rod ends are checked by hand-loading the joint and observing or feeling for looseness in the ball stud and socket. Any perceptible free play or roughness indicates a worn joint requiring replacement.
9A school bus has noticeable steering free play before the front wheels respond. Tech A says a worn pitman arm or linkage joint can cause this. Tech B says a loose internal steering gear over-center adjustment can cause this. Who is correct?
A.Tech A only
B.Tech B only
C.Both Tech A and Tech B
D.Neither Tech A nor Tech B
Explanation: Excessive on-center free play can come from worn linkage joints (pitman, drag link, tie-rod ends) or from a loose over-center (sector mesh) adjustment in the gear. Both are valid sources and should be checked systematically.
10After replacing a school bus power steering pump, the technician must bleed air from the system. Failure to fully bleed the air will most likely cause:
A.Higher fuel economy
B.A change in caster angle
C.Foaming fluid, noise, and erratic or reduced steering assist
D.Brake fade
Explanation: Trapped air in the power steering system aerates the fluid, producing foaming, whining noise, and inconsistent or weak assist. Proper bleeding (turning the wheels lock to lock with the reservoir monitored) removes the air.

About the ASE S5 Suspension & Steering (School Bus) Exam

ASE S5 is the School Bus Suspension & Steering certification test in the ASE School Bus (S) series. It verifies that a school bus technician can diagnose and repair steering systems, suspension systems, wheel alignment, and wheels and tires on heavy school bus chassis. The official test has 50 scored multiple-choice questions (60 total including unscored research items) in 75 minutes and is criterion-referenced.

Assessment

50 scored multiple-choice (60 total incl. 10 unscored) (official ASE); this practice bank is 100 selected-response items

Time Limit

75 minutes

Passing Score

Criterion-referenced (set by ASE)

Exam Fee

~$59 (ASE registration) (ASE (National Institute for Automotive Service Excellence))

ASE S5 Suspension & Steering (School Bus) Exam Content Outline

36%

Steering System Diagnosis & Repair

Integral and linkage power steering gears and pumps, drag link, tie rods, pitman and idler arms, kingpins and ball joints, steering column and shaft U-joints, steering dampers, fluid condition, pressure/flow testing, and hard, loose, or wandering steering diagnosis.

36%

Suspension Systems Diagnosis & Repair

Independent front, straight/I-beam axle, and rear suspensions including leaf springs, shackles, hangers, U-bolts, spring and center bolts, bushings, shock absorbers, sway/stabilizer bars, air springs and height control valves, equalizer beams, torque rods, and ride height.

16%

Wheel Alignment Diagnosis, Adjustment & Repair

Total-vehicle alignment with caster, camber, toe, SAI, included angle, thrust angle, toe-out on turns, axle alignment, dog-tracking diagnosis, and pre-alignment inspection of worn or bent steering and suspension components.

12%

Wheels & Tires Diagnosis & Repair

Hub-piloted and stud-piloted wheels, torque sequence and retorque, tire wear pattern analysis, dual-tire matching, wheel/tire runout and balance, wheel bearings, TPMS, and safe tire mounting practices.

How to Pass the ASE S5 Suspension & Steering (School Bus) Exam

What You Need to Know

  • Passing score: Criterion-referenced (set by ASE)
  • Assessment: 50 scored multiple-choice (60 total incl. 10 unscored) (official ASE); this practice bank is 100 selected-response items
  • Time limit: 75 minutes
  • Exam fee: ~$59 (ASE registration)

Keys to Passing

  • Complete 500+ practice questions
  • Score 80%+ consistently before scheduling
  • Focus on highest-weighted sections
  • Use our AI tutor for tough concepts

ASE S5 Suspension & Steering (School Bus) Study Tips from Top Performers

1Weight your study time by the official blueprint: steering and suspension are 36% each, so spend the most time there before alignment and wheels/tires.
2Practice Tech A / Tech B questions by evaluating each technician's statement independently before choosing an answer, since both can be correct.
3Tie symptoms to systems: connect hard steering, wander, kickback, and shimmy to specific power steering, kingpin, and linkage causes.
4For wheel alignment, memorize which tire wear pattern maps to camber, toe, inflation, and damping faults, and use SAI/included angle to spot bent parts.
5Drill safety-critical procedures such as hub-piloted wheel torque sequence, retorque, dual-tire matching, and safety-cage tire mounting until they are automatic.

Frequently Asked Questions

How many questions are on the ASE S5 test?

The official ASE S5 (School Bus Suspension & Steering) test has 50 scored multiple-choice questions plus about 10 unscored research questions, for 60 total. This free practice bank provides 100 selected-response items so you can drill every content area more deeply than the live test.

How much time do I get on ASE S5?

ASE allots 75 minutes for the S5 test. Because only 50 questions are scored, pacing is comfortable, so use the time to read each Tech A / Tech B and scenario item carefully rather than rushing.

What passing score do I need on ASE S5?

ASE uses a criterion-referenced passing standard set by ASE rather than a fixed public percentage. You must answer enough scored questions correctly to meet the established standard, so build broad competence across all four content areas instead of targeting a single number.

What content matters most on ASE S5?

The official content distribution is 36% Steering System Diagnosis & Repair, 36% Suspension Systems Diagnosis & Repair, 16% Wheel Alignment Diagnosis/Adjustment/Repair, and 12% Wheels & Tires Diagnosis & Repair. The two largest areas, steering and suspension, deserve the most study time.

What are the prerequisites for ASE S5?

ASE generally requires two years of relevant hands-on work experience to certify, though qualifying training can substitute for up to one year. You can test before meeting the experience requirement, but the credential is awarded once experience is verified.

Where is the ASE S5 test administered?

ASE certification tests, including S5, are delivered by appointment at Prometric test centers. Register through ASE and then schedule a seat at a Prometric location during an open testing window.