ASE, electrician, HVAC, plumber, and trade licensing prep.
Comprehensive ASE A1 prep — practice questions covering the full exam, complete course notes, timed mock exams, and detailed explanations for every answer. 1 year of access on any device with built-in progress tracking.
Comprehensive AWS Welder prep — practice questions covering the full exam, complete course notes, timed mock exams, and detailed explanations for every answer. 1 year of access on any device with built-in progress tracking.
Comprehensive Barber Exam prep — practice questions covering the full exam, complete course notes, timed mock exams, and detailed explanations for every answer. 1 year of access on any device with built-in progress tracking.
Comprehensive Contractor Exam prep — practice questions covering the full exam, complete course notes, timed mock exams, and detailed explanations for every answer. 1 year of access on any device with built-in progress tracking.
Comprehensive Cosmetology Exam prep — practice questions covering the full exam, complete course notes, timed mock exams, and detailed explanations for every answer. 1 year of access on any device with built-in progress tracking.
Comprehensive EPA 608 prep — practice questions covering the full exam, complete course notes, timed mock exams, and detailed explanations for every answer. 1 year of access on any device with built-in progress tracking.
Comprehensive Home Inspector Exam prep — practice questions covering the full exam, complete course notes, timed mock exams, and detailed explanations for every answer. 1 year of access on any device with built-in progress tracking.
Comprehensive Journeyman Electrician prep — practice questions covering the full exam, complete course notes, timed mock exams, and detailed explanations for every answer. 1 year of access on any device with built-in progress tracking.
Comprehensive Journeyman Plumber prep — practice questions covering the full exam, complete course notes, timed mock exams, and detailed explanations for every answer. 1 year of access on any device with built-in progress tracking.
Comprehensive Master Electrician prep — practice questions covering the full exam, complete course notes, timed mock exams, and detailed explanations for every answer. 1 year of access on any device with built-in progress tracking.
Skilled trades certifications and licenses ensure that professionals meet safety and competency standards in fields where improper work can cause property damage, injury, or worse. Most trade licenses are administered at the state or local level, while some certifications (ASE, EPA 608, AWS) are national.
The ASE A1 (Engine Repair) exam is part of the ASE Automotive Technician certification series. ASE offers certifications across multiple specialties — A1 through A8 covering engine repair, transmissions, drivetrain, suspension, brakes, electrical systems, HVAC, and engine performance. Earning all eight qualifies you as an ASE Master Technician.
Each ASE exam consists of 40-50 scenario-based multiple-choice questions. You'll read a vehicle symptom description and determine the most likely cause or appropriate repair. Certification requires passing the exam plus demonstrating relevant work experience (typically 2 years, or 1 year with a qualifying training program).
The Journeyman Electrician exam tests knowledge of electrical theory, the National Electrical Code (NEC), wiring methods, load calculations, motor controls, grounding, and safety practices. Eligibility typically requires completing a 4-year apprenticeship (approximately 8,000 hours). Exams are administered at the state or local level.
The Master Electrician exam covers everything on the journeyman exam plus advanced NEC calculations, project management, supervision responsibilities, and code compliance for complex installations. Master eligibility usually requires several additional years of experience beyond journeyman.
Both exams are heavily code-based — the NEC is either provided or you bring your own copy with tabs (no handwritten notes). Speed in navigating the NEC is just as important as knowing the content.
The Journeyman Plumber exam tests knowledge of plumbing codes (typically the Uniform Plumbing Code or International Plumbing Code, depending on jurisdiction), water supply and distribution systems, drainage and venting, fixture installation, water heater installation, gas piping, and safety practices.
Like electrical exams, plumbing exams are administered at the state or local level and typically require completion of an apprenticeship (usually 4-5 years). The exam format is multiple-choice, and most jurisdictions allow you to reference the applicable plumbing code during the test. Code navigation speed is critical — knowing where to find the right table or section quickly separates passing candidates from those who run out of time.
The certification is a federal requirement for anyone handling refrigerants. It comes in four types: Type I (small appliances), Type II (high-pressure systems), Type III (low-pressure systems), and Universal (all types). Most working HVAC technicians pursue Universal certification.
The exam covers refrigerant handling, recovery and recycling procedures, EPA regulations, system components, safety, and environmental impact — 25 questions per section with a 70% passing score.
The AWS Welder certification from the American Welding Society validates proficiency in specific welding processes and positions. Unlike written-only exams, AWS welder certification includes a performance qualification test — you produce actual weld specimens that are visually inspected and may be bend-tested or radiographically examined.
Certification is specific to the welding process (SMAW, GMAW, GTAW, FCAW, etc.), material type, thickness range, and welding position tested. Each combination requires a separate qualification. AWS D1.1 (Structural Steel) and AWS D1.5 (Bridge Welding) are among the most commonly required certifications.
The Contractor Exam varies significantly by state. Most versions cover construction project management, building codes (typically the International Building Code), contract law, business management, safety regulations (OSHA), and trade-specific knowledge. Some states split the exam into business/law and trade-specific sections.
The Home Inspector Exam tests knowledge of residential building systems — structural, exterior, roofing, plumbing, electrical, HVAC, insulation, interior, and site conditions. The National Home Inspector Examination (NHIE) is the most widely used standardized exam, with 200 multiple-choice questions.
The Cosmetology Exam and Barber Exam are administered by state boards and typically include both a written knowledge test and a practical skills demonstration. The written portion covers sanitation, safety, state laws, chemistry, hair science, skin care, and nail care. The practical portion tests hands-on skills under examiner observation.
For code-based exams (electrician, plumber, contractor), invest time in learning to navigate the NEC or applicable code quickly. Tab your code book by topic and practice timed lookups. For ASE exams, focus on diagnostic reasoning. For EPA 608, the question pool is published — drilling the actual questions is effective. For AWS welder certification, practice producing consistent, defect-free welds in the specific process and position you're testing. For cosmetology and barber exams, pair written study with hands-on practice.
Our platform provides practice questions for all skilled trades exams listed above, with explanations grounded in the applicable codes, standards, and industry best practices.