Free Engineering, Architecture, Construction & Safety certifications
Engineering fundamentals, CAD and BIM, quality, construction and workplace health and safety. 30 free tests from beginner to advanced, every question based on a published source, with a verifiable certificate you can add to LinkedIn.
Founder, Science of AppsWhat are the best free Engineering & safety certifications?
Science of Apps has 30 free Engineering, Architecture, Construction & Safety certifications and skill tests: engineering fundamentals, CAD and BIM, quality, construction and workplace health and safety. 3 beginner, 19 intermediate, 8 advanced — each a timed online test of original scenarios based on published standards, graded instantly, with a verifiable, LinkedIn-ready certificate.
Beginner Engineering & safety certifications
No experience needed: fundamentals and clear reasoning.
- 10 questions · 10 minSOA-CAD
CAD Certification
Tests computer-aided design fundamentals — technical drawing standards, orthographic projection, dimensioning and tolerancing, and core 2D and 3D CAD modelling concepts that apply across AutoCAD, SolidWorks, Fusion and other tools.
Difficulty: BeginnerFor CAD drafter, Engineering or architecture student, Design technicianTake the 10-minute test → - 10 questions · 10 minSOA-FIRE
Fire Safety Certification
Tests workplace fire safety — the fire triangle, fire classes and common causes, fire prevention and risk assessment, and choosing and using fire extinguishers, raising the alarm and evacuating safely.
Difficulty: BeginnerFor Fire warden, Facilities staff, Office or site supervisorTake the 10-minute test → - 10 questions · 10 minSOA-FLT
Fleet Safety Certification
Tests fleet and driver safety — distracted, impaired, drowsy and speeding risks, defensive driving and following distance, and fleet safety management including hours of service, vehicle inspections, telematics and incident reporting.
Difficulty: BeginnerFor Fleet driver, Fleet manager, Delivery or sales driverTake the 10-minute test →
Intermediate Engineering & safety certifications
Assumes hands-on experience in the role.
- 15 questions · 15 minSOA-EMTH
Engineering Mathematics Practice Test
Tests engineering mathematics — calculus and differential equations, linear algebra and complex numbers, and probability, statistics and numerical methods — at the level used in engineering degrees and the FE exam.
Difficulty: IntermediateFor Engineering student, FE exam candidate, Graduate engineerTake the 15-minute test → - 15 questions · 15 minSOA-ACAD
AutoCAD Certification Practice Test
Tests AutoCAD skills — precise drawing and editing commands, layers, blocks, attributes, annotation and dimension styles, and layouts, viewports and plotting — aligned to the topics in Autodesk's AutoCAD certification.
Difficulty: IntermediateFor AutoCAD drafter, CAD technician, Architecture or engineering studentTake the 15-minute test → - 15 questions · 15 minSOA-SWX
SolidWorks Certification Practice (CSWA-Style)
Tests SOLIDWORKS skills in the style of the CSWA exam — sketching, part features and design intent, assemblies and mates, and drawings, materials, configurations and mass properties.
Difficulty: IntermediateFor Mechanical design engineer, CAD designer, Engineering studentTake the 15-minute test → - 15 questions · 15 minSOA-RVT
Revit & BIM Certification
Tests Revit and BIM fundamentals — building information modelling concepts and ISO 19650, Revit families, parameters and project structure, and views, schedules, worksharing and linked models.
Difficulty: IntermediateFor BIM modeller, Revit technician, Architectural or engineering technologistTake the 15-minute test → - 15 questions · 15 minSOA-HVAC
HVAC Certification Practice Test
Tests HVAC knowledge — heat transfer and psychrometrics, the refrigeration cycle, refrigerant handling under EPA Section 608, and HVAC systems, airflow, controls and the main ASHRAE standards.
Difficulty: IntermediateFor HVAC technician, HVAC apprentice, Building services engineerTake the 15-minute test → - 15 questions · 15 minSOA-PLC
PLC Programming Certification
Tests PLC programming — PLC hardware, scan cycle and analogue and digital I/O, ladder logic and the IEC 61131-3 languages, and timers, counters, troubleshooting and machine safety.
Difficulty: IntermediateFor PLC programmer, Controls technician, Automation engineerTake the 15-minute test → - 15 questions · 15 minSOA-INDM
Industrial Maintenance Certification
Tests industrial maintenance — maintenance strategies and reliability metrics such as MTBF, availability and OEE, mechanical systems including bearings, alignment, lubrication and vibration, and electrical troubleshooting and maintenance safety.
Difficulty: IntermediateFor Industrial maintenance technician, Maintenance planner, Reliability engineerTake the 15-minute test → - 15 questions · 15 minSOA-QC
Quality Control Certification
Tests quality control — inspection, sampling and measurement, statistical process control with control charts and process capability, and problem-solving with the seven basic quality tools and corrective action.
Difficulty: IntermediateFor Quality control inspector, Quality technician, Quality engineerTake the 15-minute test → - 15 questions · 15 minSOA-LMFG
Lean Manufacturing Certification
Tests lean manufacturing — lean principles and the eight wastes, flow, pull, takt time and value stream mapping, and continuous improvement tools such as 5S, SMED, kanban, standard work and kaizen.
Difficulty: IntermediateFor Lean practitioner, Continuous improvement engineer, Production managerTake the 15-minute test → - 15 questions · 15 minSOA-I901
ISO 9001 Certification Training
Tests ISO 9001:2015 quality management — the seven quality management principles and high-level structure, the requirements from context and leadership through operation, and performance evaluation, internal auditing and improvement.
Difficulty: IntermediateFor Quality manager, ISO 9001 internal auditor, Quality management system coordinatorTake the 15-minute test → - 15 questions · 15 minSOA-I141
ISO 14001 Certification Training
Tests ISO 14001:2015 environmental management — EMS structure and context, environmental aspects, compliance obligations and planning with a life-cycle perspective, and operational control, emergency preparedness, evaluation and improvement.
Difficulty: IntermediateFor Environmental manager, ISO 14001 internal auditor, EHS coordinatorTake the 15-minute test → - 15 questions · 15 minSOA-OHS
Occupational Health & Safety (OHS) Certification
Tests occupational health and safety — hazard identification and risk assessment, the hierarchy of controls and ISO 45001 safety management, and workplace health, incident investigation and emergency preparedness.
Difficulty: IntermediateFor Health and safety officer, EHS coordinator, Site supervisorTake the 15-minute test → - 15 questions · 15 minSOA-OSHA
OSHA Practice Test (10-Hour & 30-Hour Topics)
Tests OSHA safety topics covered in the 10-hour and 30-hour Outreach courses — workers' rights, employer duties and recordkeeping, the construction Focus Four hazards, and general industry standards such as hazard communication, lockout/tagout, PPE and exit routes.
Difficulty: IntermediateFor Construction worker, General industry worker, Site supervisorTake the 15-minute test → - 15 questions · 15 minSOA-ESAF
Electrical Safety Certification (NFPA 70E-Aligned)
Tests electrical safety aligned to NFPA 70E — shock and arc flash hazards and establishing an electrically safe work condition, risk assessment, approach boundaries and arc-rated PPE, and safe work practices, training and electrical safety programmes.
Difficulty: IntermediateFor Electrician, Electrical maintenance technician, Facilities engineerTake the 15-minute test → - 15 questions · 15 minSOA-QS
Quantity Surveying Certification
Tests quantity surveying — measurement and bills of quantities under RICS NRM, cost estimating and elemental cost planning, and contract administration including interim valuations, retention, variations and final accounts.
Difficulty: IntermediateFor Quantity surveyor, Cost consultant, EstimatorTake the 15-minute test → - 15 questions · 15 minSOA-CPRO
Construction Procurement & Contracts Certification
Tests construction procurement and contracts — procurement routes from traditional to design and build and collaborative models, standard forms such as FIDIC, NEC4 and JCT, and tendering, risk allocation, payment, claims and dispute resolution.
Difficulty: IntermediateFor Construction procurement manager, Contracts manager, Quantity surveyorTake the 15-minute test → - 15 questions · 15 minSOA-RVTA
Revit Architecture Skills Test
Tests Revit Architecture skills — modelling walls, floors, roofs, ceilings and curtain walls, placing doors, windows, stairs and rooms, and producing documentation with dimensions, annotations, schedules and sheets.
Difficulty: IntermediateFor Architectural technologist, Revit modeller, Architectural assistantTake the 15-minute test → - 15 questions · 15 minSOA-BCOD
Building Codes Certification (IBC-Aligned)
Tests building code knowledge aligned to the International Building Code (IBC) — code structure and occupancy classification, construction types, fire resistance and height and area limits, and means of egress and accessibility.
Difficulty: IntermediateFor Building inspector, Plans examiner, Architect or architectural technologistTake the 15-minute test → - 15 questions · 15 minSOA-ARCH
Architectural Design Certification
Tests architectural design knowledge — design principles, theory and history, site analysis, programming and space planning, and building technology, sustainability and accessible design.
Difficulty: IntermediateFor Architectural designer, Architecture student, Architectural technologistTake the 15-minute test →
Advanced Engineering & safety certifications
Assumes years in the role or deep specialist knowledge.
- 20 questions · 20 minSOA-MECH
Mechanical Engineering Practice Test (FE-Style)
Tests mechanical engineering fundamentals in the style of the FE Mechanical exam — statics and mechanics of materials, thermodynamics and heat transfer, fluid mechanics, and dynamics, machine design and materials — with worked calculations.
Difficulty: AdvancedFor Mechanical engineering student, Graduate engineer preparing for the FE exam, Design engineerTake the 20-minute test → - 20 questions · 20 minSOA-ELEC
Electrical Engineering Practice Test (FE-Style)
Tests electrical and computer engineering fundamentals in the style of the FE Electrical and Computer exam — circuit analysis, electronics and digital logic, power systems and machines, and signals, control and communications.
Difficulty: AdvancedFor Electrical engineering student, Graduate engineer preparing for the FE exam, Electronics engineerTake the 20-minute test → - 20 questions · 20 minSOA-CIVL
Civil Engineering Practice Test (FE-Style)
Tests civil engineering fundamentals in the style of the FE Civil exam — structural analysis and materials, geotechnical engineering, water resources and environmental engineering, and transportation and construction — with worked calculations.
Difficulty: AdvancedFor Civil engineering student, Graduate engineer preparing for the FE exam, Structural engineerTake the 20-minute test → - 20 questions · 20 minSOA-CHEN
Chemical Engineering Practice Test (FE-Style)
Tests chemical engineering fundamentals in the style of the FE Chemical exam — mass and energy balances and thermodynamics, heat and mass transfer, reaction engineering, and process design, control and safety.
Difficulty: AdvancedFor Chemical engineering student, Graduate engineer preparing for the FE exam, Process engineerTake the 20-minute test → - 20 questions · 20 minSOA-NBSH
NEBOSH Practice Questions
Practice questions for NEBOSH General Certificate topics — managing health and safety and the legal framework, risk assessment and control, workplace hazards from manual handling to chemicals and fire, and monitoring, investigation, human factors and safety culture.
Difficulty: AdvancedFor NEBOSH General Certificate candidate, Health and safety advisor, Supervisor with safety dutiesTake the 20-minute test → - 20 questions · 20 minSOA-CPC
Construction Project Controls Certification
Tests construction project controls — CPM planning and scheduling, cost estimating and earned value management, change, risk and delay analysis, and progress measurement, forecasting and reporting on capital projects.
Difficulty: AdvancedFor Project controls engineer, Construction planner/scheduler, Cost engineerTake the 20-minute test → - 20 questions · 20 minSOA-BIMC
BIM Coordinator Certification
Tests BIM coordination — ISO 19650 information management and delivery planning, model federation and clash detection, LOD, IFC, classification and data standards, and CDE workflows through to asset handover.
Difficulty: AdvancedFor BIM coordinator, BIM manager, Digital construction engineerTake the 20-minute test → - 20 questions · 20 minSOA-BEM
Building Energy Modeling Certification
Tests building energy modelling — simulation fundamentals, tools and standards, envelope, internal loads, schedules and weather inputs, HVAC system modelling, and results, calibration and code compliance using ASHRAE 90.1 Appendix G and Guideline 14.
Difficulty: AdvancedFor Building energy modeller, Sustainability consultant, Mechanical engineerTake the 20-minute test →
More free certification categories
- AI & GenAI36 tests
- Software & web dev33 tests
- Data & BI28 tests
- Marketing, SEO & AEO39 tests
- UX/UI & design42 tests
- Product & project35 tests
- Security, cloud & DevOps50 tests
- Sales & support24 tests
- HR & people14 tests
- Finance & operations69 tests
- Communication & leadership30 tests
- Languages60 tests
- Healthcare, education & more64 tests
- Test prep & academics31 tests
- Language exam prep15 tests
- Office & productivity13 tests
- Hospitality & retail8 tests
Frequently asked questions
What are the best free Engineering & safety certifications in 2026?
Science of Apps offers 30 free Engineering, Architecture, Construction & Safety certifications and skill tests, including Mechanical Engineering Practice Test (FE-Style), Electrical Engineering Practice Test (FE-Style), Civil Engineering Practice Test (FE-Style), Chemical Engineering Practice Test (FE-Style), Engineering Mathematics Practice Test, CAD Certification. Each is a timed online test of original scenarios based on published standards, graded instantly, with a founder-signed certificate and a credential ID employers can verify.
Which Engineering & safety certification should I take first?
Start with a Beginner test such as CAD Certification, Fire Safety Certification, Fleet Safety Certification, then move to Intermediate and Advanced ones such as Mechanical Engineering Practice Test (FE-Style), Electrical Engineering Practice Test (FE-Style). Every test page shows its difficulty, the skills it covers and a sample question.
Are these Engineering & safety certifications really free?
Yes. Taking a test, receiving the certificate as a PDF and by email, adding it to LinkedIn and having it verified are all free — no course, payment or sign-up.
How long does each Engineering & safety test take?
Quick skill tests are 10, 15 or 20 questions (Beginner, Intermediate or Advanced) at a minute each; full role certifications are 20 scenarios in 30 minutes. Every answer is explained with its source when you finish, and a retake draws questions you haven't seen.
How much do Science of Apps certifications cost?
Nothing. There is no fee to take a test, to receive the certificate, to have it emailed or to verify it, and no sign-up.
How are the tests graded?
On our server, not in your browser. The answers never reach the page until you submit, so a certificate can only be earned by passing. Each certificate gets a unique credential ID stored by Science of Apps.
What happens if I don't pass?
You see your score for each area and every question with the correct answer and why, with the published source behind it. You can retake after 30 minutes, and the retake draws questions you haven't seen yet.
Do the certificates expire?
No. Every certificate is dated, so it always shows when you passed. Retake a test any time for a newer date or a higher score.
Can I add the certificate to LinkedIn?
Yes. After you pass, Add to LinkedIn opens the Licenses & certifications form with the certificate name, Science of Apps as the issuer, the issue date, your credential ID and the verification link filled in. You can also download it as a PDF or PNG, and it's emailed to you as a PDF.
How can an employer verify my certificate?
Every certificate has a credential ID and a QR code. Scanning it, or entering the ID at scienceofapps.com/certification/verify/, shows the holder's name, the certification, the score and the issue date from our records.
Are these accredited qualifications?
No. They are Science of Apps' own assessments of applied skill. They aren't issued by a university or standards body, and they work best alongside a portfolio that shows the skills in real work.