100+ Free ASE B5 Mechanical & Electrical Components Practice Questions
Pass your ASE B5 — Mechanical & Electrical Components Certification exam on the first try — instant access, no signup required.
After a collision repair, the heater blows cold even at full hot. With adequate coolant, the MOST likely cause is:
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Key Facts: ASE B5 Mechanical & Electrical Components Exam
50
Scored Questions (60 total)
ASE B5 test structure
75 min
Time Limit
ASE
Criterion-referenced
Passing Standard
ASE (set by ASE)
~$59
Registration Fee
ASE
5 years
Certification Valid
ASE
26%
Largest Area (Electrical)
ASE B5 content areas
The ASE B5 Mechanical & Electrical Components test has 50 scored multiple-choice questions (60 total including 10 unscored research items) with a 75-minute time limit and criterion-referenced scoring set by ASE. The official content areas are Suspension & Steering (22%), Electrical (26%), Brakes (8%), Heating & Air Conditioning (10%), Engine Cooling Systems (8%), Drive Train (10%), Fuel/Intake & Exhaust Systems (6%), and Safety & Restraint Systems (10%). ASE certifications are valid for 5 years and require two years of relevant work experience (with a training substitution allowed).
Sample ASE B5 Mechanical & Electrical Components Practice Questions
Try these sample questions to test your ASE B5 Mechanical & Electrical Components exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.
1A vehicle pulls to the right after a left-front collision repair. A new steering knuckle and lower control arm were installed. What should the technician check FIRST?
2Increased positive caster on a front wheel will MOST directly affect which of the following?
3Tech A says excessive positive camber causes wear on the outer edge of the tire. Tech B says excessive toe-in causes a feathered wear pattern. Who is correct?
4Before removing a MacPherson strut assembly damaged in a collision, the technician should mark the strut-to-knuckle relationship in order to:
5A coil spring must be removed from a damaged strut. The SAFEST practice is to:
6After replacing a bent tie rod end, the MOST important follow-up service is to:
7A clunk is heard over bumps after a front-end collision repair. Which component is the MOST likely cause?
8Setback on a front axle is BEST described as:
9A vehicle dog-tracks after a rear-impact repair. Which alignment measurement is MOST relevant?
10When reinstalling a front lower control arm after collision repair, the control arm pivot bolts should be final-torqued:
About the ASE B5 Mechanical & Electrical Components Exam
ASE B5 Mechanical & Electrical Components is the collision-repair certification that verifies a technician can correctly restore mechanical and electrical systems disturbed by a collision. It covers suspension and steering, electrical circuits and wiring, brakes, heating and air conditioning, engine cooling, drive train, fuel/intake/exhaust, and safety/restraint systems. Passing B5 is part of the ASE Master Collision Repair & Refinish credential path.
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 B5 Mechanical & Electrical Components Exam Content Outline
Suspension & Steering
Suspension and steering R&I, knuckle/strut/control arm/tie rod service, ride height, and the alignment effects of collision repair: camber, caster, toe, SAI, thrust angle, and setback.
Electrical
Circuit theory, wiring/connector/ground repair, voltage-drop and meter usage, battery disconnect, parasitic draw, relays, sensors, EPS calibration, and welding electrical precautions.
Brakes
Brake component R&I, hydraulic line repair with proper flares, bleeding sequence, ABS sensor faults, parking brake adjustment, and electronic parking brake service mode.
Heating & Air Conditioning
Refrigerant recovery, system evacuation and recharge, R-1234yf handling, leak diagnosis, receiver/drier replacement, compressor oil specification, and heater/blend-door diagnosis.
Engine Cooling Systems
Cooling system fill and air bleed, coolant leak repair, pressure testing, electric cooling fan circuit diagnosis, and thermostat service after collision repair.
Drive Train
Half-shaft and driveshaft R&I, CV joint and boot service, axle nut torque/bearing preload, differential lubricant service, AWD tire-match concerns, and transmission cooler line repair.
Fuel, Intake & Exhaust Systems
Fuel line and tank replacement, fuel pressure relief, intake duct integrity, EVAP system inspection, and exhaust R&I with correct clearance and leak verification.
Safety & Restraint Systems
SRS battery disconnect and capacitor wait time, airbag handling and disposal, seat belt pretensioner and clockspring replacement, occupant classification, and crash sensor service.
How to Pass the ASE B5 Mechanical & Electrical Components 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 B5 Mechanical & Electrical Components Study Tips from Top Performers
Frequently Asked Questions
What is the ASE B5 Mechanical & Electrical Components exam?
ASE B5 is a collision-repair certification test that verifies a technician can correctly service the mechanical and electrical systems affected by a collision, including suspension/steering, electrical, brakes, A/C, cooling, drive train, fuel/exhaust, and safety restraint systems. It is part of the ASE Master Collision Repair & Refinish credential path.
How many questions are on the ASE B5 exam and how long is it?
The official ASE B5 test has 50 scored multiple-choice questions plus 10 unscored research questions for 60 total, with a 75-minute time limit. This free practice bank contains 100 selected-response items with explanations so you can train well beyond the live question count.
What is the passing score for ASE B5?
ASE uses criterion-referenced scoring and sets the passing standard for B5; it does not publish a fixed public cut percentage for this test. Confirm current scoring details with ASE when you register, and focus your prep on demonstrating consistent competency across all content areas.
What experience do I need to take ASE B5?
ASE recommends about two years of relevant hands-on work experience before certifying. Up to one year of that experience may be substituted with approved formal training. You may sit for the exam first, but the certification is issued only after both the exam pass and the work-experience documentation are satisfied.
How much does the ASE B5 exam cost and how is it delivered?
ASE B5 is roughly a $59 registration covering the test, delivered at Prometric test centers for initial certification. Fees can change, so verify the current amount and any registration policies on the ASE website before scheduling.
What changed for ASE B5 in 2026?
As of May 2026, ASE continues to list B5 as a 60-question (50 scored) collision-repair test covering the same eight content areas. Modern items reflect current service realities such as R-1234yf refrigerant, electronic parking brakes, and SRS occupant-classification calibration. Always confirm the live ASE blueprint before testing.