Get ready for your trade exam
Practice tests for electrician, HVAC, CDL, plumbing, contractor and safety exams. 13,601 original questions, each with the reason for the answer and its reference. Start free, no sign-up.
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- 13,601 original questions
- 151 exams with practice questions
- 19 trades
- 17 languages
Practice tests ready now
Electrician
Journeyman, master and contractor exams: theory, calculations and code knowledge.
HVAC & Refrigeration
EPA 608, NATE and state HVAC licence exams.
Plumbing & Gas
Journeyman and master plumber, backflow, gas fitting and pipefitting exams.
CDL & Driving
CDL general knowledge, air brakes, combination vehicles and every endorsement.
Contractor
Business and law, general and specialty contractor licence exams.
Safety
OSHA 10 and 30, HAZWOPER, safety technician and food safety exams.
Apprenticeship & Trade Math
Trade math, blueprint reading and apprenticeship aptitude tests.
Inspector
Home inspector and ICC building, electrical, plumbing and mechanical inspector exams.
Welding
Certified Welding Inspector, welder knowledge and code exams.
Automotive
ASE certification tests and state inspector exams.
Aviation
Aviation mechanic General, Airframe and Powerplant, and drone pilot exams.
Water & Wastewater
Water and wastewater treatment, distribution and collection operator exams.
Cranes & Equipment
Crane operator, rigger, signalperson, boiler operator and stationary engineer exams.
Fire & Security
Fire alarm, sprinkler, extinguisher, firefighter, low voltage and security exams.
Pest & Landscape
Pesticide applicator, structural pest control, arborist and irrigation exams.
Beauty & Barber
Cosmetology, barber, esthetician, nail technician and massage exams.
Healthcare Support
CNA, phlebotomy, pharmacy technician, medical assistant and EMT exams.
Real Estate & Property
Real estate, appraiser, mortgage loan originator, notary and adjuster exams.
Maritime, Rail & Radio
Captain's licence, merchant mariner, railroad rules and amateur radio exams.
How it works
- Pick an exam. Each practice test is split into the topics that exam covers.
- Answer 10 questions at a time. You see right or wrong straight away, with the reasoning and the reference.
- Drill your weak topics. Every test is split by topic, so you can practise the part you keep missing.
Where the questions come from
Every question is original and written from public sources such as regulations and published exam outlines. Each one names the topic or source it rests on and cites the regulation, code section or standard wherever one applies. Every calculation is recomputed, and every answer gets a second independent check against its reference. Doubtful questions are fixed or removed. Read exactly how we write them.
- Written from public sources. Questions are written fresh for this site from public material such as regulations and published exam outlines.
- A reference on every question. Each question names the topic or source its answer rests on, and cites the regulation, code section or standard wherever one applies, so you can follow it up yourself.
- Calculations recomputed. For calculation questions, the answer is worked out again from the numbers in the question instead of trusting the first result.
- A second, independent check. Each answer is checked a second time, independently, against the reference the question cites. Doubtful questions are fixed or removed.
Which exam are you studying for?
Tell us the exam and where you are taking it. Requests decide what we write next.