CodeSafe • Ontario

G3 Exam Prep (Gas Technician 3)

Prepare for the Gas Technician 3 (G3) exam with timed practice sets and a full TSSA-style mock exam experience. Built for reps, pacing, and confidence.

Start G3 PracticeStart Full G3 Mock (165)
Timed Practice Sets

Short and medium sessions for daily reps and weak-area focus.

Full Mock Exam

165 questions with a timer to simulate test-day pacing.

Answer Review

See what you got right/wrong and tighten your weak topics.

What’s included

  • G3 practice tests (timed)
  • Full mock exam: 165 questions • 3.5 hours
  • Randomized sessions each time
  • Answer sheet at the end of the exam
  • Built for exam-style pacing
Practice G3Start 25 Question Set

How to study (simple plan)

  1. Do 25-question sets daily until your score stabilizes above 75%.
  2. Move to 60-question sets for endurance and timing.
  3. Do 1–2 full mocks close to exam day.
  4. Review the answer sheet and re-run weak topics.
Tip: Treat the full mock like the real day — no distractions, no pausing, timer on.

Ready to start your G3 exam prep?

Jump into a timed practice set or go straight to the full mock exam.

Start PracticeStart Full Mock