This practice exam draws 60 questions from a 400-question bank covering all 13 lessons, with each of the 7 topic areas represented in proportion to its share of the bank: general administration, heating, cooling and water heaters, exhaust and ventilation, duct systems, combustion air, chimneys and vents, and fuel gas supply. Question order and answer order are shuffled every time you sit it.

Rules

• 60 questions in 120 minutes. The clock starts when you press Begin.
• One question per screen, with Previous and Next. You may change any answer until you submit.
• Flag anything you want to come back to. The review panel lists every question as answered, unanswered or flagged.
• No feedback until you submit. Explanations and a topic breakdown appear after scoring, not during.
• It submits itself at zero, and unanswered questions score as incorrect, so answer everything even if you are unsure.

Begin the 120-minute practice sitting

• Answered
• Unanswered
• Flagged

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