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100+ Free ASE T5 Suspension & Steering (Medium/Heavy Truck) Practice Questions

Pass your ASE T5 — Suspension & Steering (Medium/Heavy Truck) Certification exam on the first try — instant access, no signup required.

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Key Facts: ASE T5 Suspension & Steering (Medium/Heavy Truck) Exam

60

Total Questions (50 scored)

ASE T-series test structure

75 min

Testing Time

ASE T5 test information

~$59

ASE Registration Fee

ASE registration

32%

Largest Area: Suspension/Frame/Fifth Wheel

ASE T5 content areas

2 years

Work Experience Required

ASE certification requirements

Prometric

Test Administrator

ASE testing program

ASE T5 (Suspension & Steering, Medium/Heavy Truck) is a 60-question test with 50 scored multiple-choice items and a 75-minute time limit, delivered through Prometric. Scoring is criterion-referenced and set by ASE, and certification requires two years of relevant work experience (training can substitute for part of it). Official content areas are Steering System Diagnosis & Repair (24%), Suspension, Frame & Fifth Wheel Diagnosis & Repair (32%), Wheel Alignment Diagnosis, Adjustment & Repair (26%), and Wheels, Tires & Hub Diagnosis & Repair (18%).

Sample ASE T5 Suspension & Steering (Medium/Heavy Truck) Practice Questions

Try these sample questions to test your ASE T5 Suspension & Steering (Medium/Heavy Truck) exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1A driver reports excessive steering wheel free play on a Class 8 truck with an integral power steering gear. Which condition is the MOST likely cause?
A.Worn or loose steering gear sector shaft and pitman arm
B.Over-inflated steer tires
C.A restricted power steering cooler
D.Excessive positive caster
Explanation: Free play (lash) felt at the steering wheel before the road wheels respond points to wear in the steering linkage or gear, most commonly a worn sector/pitman connection or worn linkage joints. Tire pressure and caster affect handling but not lash, and a cooler restriction affects assist, not free play.
2Technician A says an integral power steering gear combines the steering gear and the hydraulic assist in one housing. Technician B says a linkage (external) power steering system uses a separate power cylinder mounted to the linkage. Who is correct?
A.Technician A only
B.Technician B only
C.Both A and B
D.Neither A nor B
Explanation: Both statements are correct. An integral gear houses the steering gear and hydraulic assist together, while a linkage-type system places a separate hydraulic power cylinder on the steering linkage with a control valve. Heavy trucks commonly use integral gears, sometimes with an auxiliary slave cylinder on heavy front axles.
3During a power steering pressure test on a heavy truck, the technician closes the load valve momentarily and reads relief pressure. Why must the valve never be held closed for more than a few seconds?
A.It will reverse pump rotation
B.Trapped flow rapidly overheats the fluid and can damage the pump
C.It permanently calibrates the relief valve
D.It bleeds air into the reservoir
Explanation: With the load valve fully closed all pump output is forced over the relief valve, generating heat very quickly. Holding it closed too long overheats the fluid and can damage the pump, so readings are taken in brief intervals. The valve does not reverse rotation, recalibrate the relief, or introduce air.
4A heavy truck steers hard in both directions equally, but the power steering pump produces correct relief pressure. Which is the MOST likely cause?
A.A worn drag link socket
B.A bent pitman arm
C.Low pump flow (volume) even though relief pressure is correct
D.Excessive toe-out
Explanation: A pump can build correct maximum (relief) pressure yet still deliver insufficient flow under steering load, causing hard steering in both directions, especially at low engine RPM. Pressure alone does not confirm adequate volume, so a flow test is required. The other items would cause directional pull, play, or wear, not equal hard steering with good pressure.
5What is the primary function of the steering gear poppet (relief) adjustment in an integral heavy-truck steering gear?
A.To adjust steering wheel return rate on center
B.To set front-axle camber
C.To control power steering pump idle pressure
D.To unload assist just before the gear reaches its mechanical stops to protect components
Explanation: Internal poppet valves in many integral gears reduce hydraulic assist just before full lock so the gear and linkage are not slammed into the mechanical stops, protecting the gear, pump, and frame mounts. Poppets are set relative to axle stops, not camber, idle pressure, or on-center return.
6A truck wanders and the driver must constantly correct steering. Inspection finds a drag link socket that moves when pried. What should the technician do?
A.Add grease to quiet the joint and return the truck
B.Replace the worn drag link socket and recheck steering
C.Increase power steering pump pressure
D.Tighten the steering gear mesh load only
Explanation: A drag link socket that shows free movement under prying is worn beyond service limits and introduces lost motion that causes wander. The correct repair is to replace the worn component, then recheck steering and alignment. Grease, pump pressure, or gear mesh adjustments do not cure mechanical wear in the socket.
7Technician A says kingpin wear can be checked by measuring vertical movement (lift) at the wheel with the axle supported. Technician B says kingpin wear is checked by horizontal movement (rock) at the top and bottom of the tire. Who is correct?
A.Technician A only
B.Technician B only
C.Both A and B
D.Neither A nor B
Explanation: Kingpin and bushing wear is evaluated using both vertical end-play (lift) and horizontal deflection (rock) checks with the steer axle supported. Excessive movement in either direction beyond the manufacturer specification indicates worn kingpins or bushings. Both technicians describe valid checks.
8On a heavy truck steer axle, the recommended way to check tie rod (cross tube) end wear is to:
A.Check brake chamber stroke
B.Measure tire tread depth across the steer tires
C.Read power steering relief pressure
D.Grasp and shake the tie rod end while watching for free movement in the socket
Explanation: Tie rod (cross tube) ends are inspected by manually working the joint and watching for looseness or free play in the socket; any perceptible looseness usually requires replacement. Tread depth, steering pressure, and brake stroke are unrelated to tie rod joint wear evaluation.
9A heavy-truck integral steering gear has been adjusted and now binds at the on-center (straight-ahead) position only. What is the MOST likely cause?
A.Sector mesh (over-center) adjustment is too tight
B.Caster is set too low
C.Tie rod is too long
D.Power steering belt is loose
Explanation: Many integral gears have a tighter mesh at center by design; setting the over-center (sector mesh) adjustment too tight makes the gear bind in the straight-ahead position while feeling free off-center. Caster, tie rod length, and belt condition do not cause a tight spot localized to gear center.
10What is the correct procedure for adjusting steering gear mesh (over-center / sector lash) on an integral gear?
A.Set it to maximum tightness then back off two full turns
B.Center the gear, back the adjuster off, then turn in to a specified turning-torque reading across center
C.Adjust it only at full lock in one direction
D.Adjust it with the engine running at high RPM
Explanation: Over-center lash is set with the gear on its high point (center): the adjuster is backed out and then turned in until the specified turning torque passing through center is obtained, per the manufacturer. It is not set by maximum tightness, at full lock, or with the engine running at high RPM.

About the ASE T5 Suspension & Steering (Medium/Heavy Truck) Exam

ASE T5 is the Suspension & Steering certification in the ASE Medium/Heavy Truck (T-series) program. It validates a truck technician's ability to diagnose and repair heavy-truck steering systems, suspensions, frames and fifth wheels, wheel alignment, and wheel/tire/hub assemblies. The official test is delivered by Prometric and is scored on a criterion-referenced basis 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

Passing Score

Criterion-referenced (set by ASE)

Exam Fee

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

ASE T5 Suspension & Steering (Medium/Heavy Truck) Exam Content Outline

24%

Steering System Diagnosis & Repair

Manual and power steering gears, integral and linkage power steering, kingpins and bushings, tie rods, drag links, steering shafts, dampers, pump pressure and flow testing, bleeding, and steering wheel centering.

32%

Suspension, Frame & Fifth Wheel Diagnosis & Repair

Leaf, air, and walking-beam suspensions, ride height and height control valves, shocks, torque rods and bushings, U-bolts, shackles, frame rails, crossmembers and fasteners, and fifth wheel mounting, lubrication, and lock testing.

26%

Wheel Alignment Diagnosis, Adjustment & Repair

Total-vehicle alignment, caster, camber, toe, setback, thrust angle, SAI, scrub radius, toe-out-on-turns, axle alignment and tracking, and tire-wear pattern diagnosis.

18%

Wheels, Tires & Hub Diagnosis & Repair

Hub-piloted versus stud-piloted wheel systems, fastener torque and retorque, multi-piece rim safety, wheel-end bearing adjustment and preset hubs, seals, TPMS, and dual tire matching.

How to Pass the ASE T5 Suspension & Steering (Medium/Heavy Truck) 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 T5 Suspension & Steering (Medium/Heavy Truck) Study Tips from Top Performers

1Spend the most study time on suspension, frame, and fifth wheel content since it is the largest area at 32% of the test.
2Practice reading Tech A/Tech B items carefully; the correct answer often depends on whether both statements are independently true.
3Connect alignment angles to tire-wear patterns: feathering points to toe, one-edge wear to camber, cupping to worn or weak wheel-end parts.
4Memorize the difference between hub-piloted and stud-piloted wheel systems, including thread direction and torque/retorque practice.
5Learn power steering diagnosis as both pressure and flow: a pump can make rated pressure yet still steer hard from low flow.

Frequently Asked Questions

How many questions are on the ASE T5 test?

The official ASE T5 test contains 60 total questions, of which 50 are scored multiple-choice items and 10 are unscored research questions. This free practice bank provides 100 selected-response questions so you can drill every content area more thoroughly than a single official form.

How much time do I get on ASE T5?

ASE allots 75 minutes for the T5 test. Because only 50 questions are scored, pacing is comfortable for most technicians, but Tech A/Tech B style items reward careful reading rather than rushing.

What passing score do I need on ASE T5?

ASE uses a criterion-referenced passing standard set by ASE rather than a fixed public percentage. The cut score is established through ASE's standard-setting process, so focus on mastering the content areas rather than chasing a specific number.

What does ASE T5 cost and who administers it?

ASE registration is approximately $59 and covers the T5 test. The exam is delivered by Prometric at its test centers. Confirm current fees and scheduling in your ASE account before registering.

What experience do I need to certify with ASE T5?

ASE requires two years of relevant hands-on work experience to earn certification. Up to one year of that requirement can be substituted with qualifying formal training in automotive or heavy-truck technology.

Which ASE T5 content area is weighted most heavily?

Suspension, Frame & Fifth Wheel Diagnosis & Repair is the largest area at 32%, followed by Wheel Alignment at 26%, Steering System at 24%, and Wheels, Tires & Hub at 18%. Weight your study time accordingly.