ASE Transit Bus Drive Train (H3) Test — Information & Free Practice
US · Examination information
100 free questions · Answer explanations · No signup required
ASE Transit Bus Drive Train (H3) Test
- Provider
- Prometric
- Format
- English, computer-based multiple-choice examination at a test center
- Exam questions
- Total questions: 50; Scored questions: 40; Unscored questions: 10; The total includes the scored and unscored questions.
- Time limit
- 60 minutes
Examination outline
Automatic Transmission Diagnosis and Repair (70%)
- Noise, vibration and shifting diagnosis
- Fluid level, dipstick calibration, usage, leaks and condition
- Transmission pressure tests
- Stall tests where applicable
- Lock-up converter system tests where applicable
- Fluid and internal/external filter replacement
- Retarder controls, valves, air lines, sensors and components
- External seals and gaskets
- Transmission cooler, lines, breathers, filters and fittings
- Electrical/electronic transmission components and circuits
- Drivetrain mounts
- Transmission removal/replacement, high voltage identification and flex plate
- Mating surfaces, runout and engine-to-transmission mounting adapters
- High voltage disconnect, reconnect and enabling
- Electronic shift selectors, switches, displays, indicators and harnesses
- Diagnostic tools, software, procedures, service information, codes and DMM readings
- Data communications bus network failures
Drive Shaft and Universal Joint Diagnosis and Repair (10%)
- Driveshaft and universal joint noise, vibration and failure diagnosis
- Driveshaft, slip joints, yokes, flanges, universal joints, dampers and phasing
- Driveline angle measurement and adjustment
Drive Axle Diagnosis and Repair (20%)
- Rear axle drive unit noise, vibration and overheating
- Fluid leaks, cover plates, gaskets, breathers, magnetic plugs and pinion seals
- Rear axle fluid level, condition and lubricant selection
- Differential carrier replacement, ring and pinion backlash and housing surfaces
- Axle shaft inspection and replacement
- Rear wheel hub assembly, ABS tone/exciter ring and wheel speed sensor
- Wheel bearing noise and damage diagnosis
- Wheel bearings, races, locking plates, nuts, seals, wear rings, flange gasket and endplay
- Planetary axle assemblies and components
Examination sources
- ASE H-series examination page
Study Guides, Transit Bus Study Guide link
- Official ASE Transit Bus Study Guide
page 3, task-list adoption paragraph
- Official ASE Transit Bus Study Guide
page 17, Test Specifications and Task List, examination heading
- Official ASE Transit Bus Study Guide
page 17, Content Area column, rows A–C and Total
- Official ASE Transit Bus Study Guide
page 17, Percentage of Test column, rows A–C and Total
- Official ASE Transit Bus Study Guide
page 17, Questions in Test column, rows A–C and Total
- Official ASE Transit Bus Study Guide
page 17, Task List A, tasks 1–17
- Official ASE Transit Bus Study Guide
page 17, Task List B, tasks 1–3
- Official ASE Transit Bus Study Guide
page 18, Task List C, tasks 1–9
- Official ASE Transit Bus Study Guide
page 3, question formats paragraph
- Official ASE Transit Bus Study Guide
page 4, Certification Tests, H3 Drive Train, Number of questions cell
- Official ASE Transit Bus Study Guide
page 4, asterisk footnote below complete certification/recertification table
- Official ASE Transit Bus Study Guide
page 4, Certification Tests, H3 Drive Train, Testing time cell
- ASE Certification: Need to Know
page 3, step 3
- ASE Certification: Need to Know
page 4, Test Centers
- ASE H-series examination page
Testing FAQs — How does registration and scheduling work?
- ASE Certification: Need to Know
page 3, step 2
- ASE test center policies
90 Days to Take Your Test
- ASE Work Experience Requirements
ASE Work Experience Requirements — sitting before experience
- ASE H-series examination page
Registration Dates — Fall Registration
- ASE FAQs
ASE Test Requirements — What is unique about the Advanced Level Tests (L1, L2, L3, and L4)?
- ASE Certification: Need to Know
page 3, step 4, language support
- ASE Certification: Need to Know
page 4, Prometric ProProctor eligibility
- ASE test center policies
Photo ID with Signature Policy, required identification
- ASE test center policies
Photo ID with Signature Policy, account name
- ASE test center policies
30-Day Wait Period
Related license preparation
This examination may be required or accepted as an alternative, depending on the license and application pathway.