Construction & Trades
Skilled Trade License Exams
Skilled-trade license exams certify electricians, plumbers and HVAC technicians and cover the codes and safety rules those trades work under. This hub gathers the journeyman and master trade exams plus core certifications like EPA 608 and OSHA 30 so you can practice for the credential your trade and state require. All practice questions and mock exams are free.
6 exams
Frequently asked questions
Which trade exam should I take?
It depends on your trade and how far along you are. Apprentices usually test for a journeyman license first, then a master license with more experience; specialty certifications like EPA 608 (refrigerant handling) and OSHA 30 (jobsite safety) apply across several trades. Choose the exam that matches the credential you need from the list above.
How many questions are on the real exam?
It depends on the specific exam and, for state-issued licenses, on your state. Open the exam you need from the list on this page — each exam page shows its current format and question count, kept in line with the exam board's published outline.
Are these practice tests free?
Yes. Every practice question and full-length timed mock exam on PrepPass is free, with no signup required. The only optional paid product is a $9.99 study-guide eBook offered for some exams.