Gas Fitter Practice · Question
Which of the following is a common symptom of a blocked or improperly sized vent connector?
A blocked vent leads to back-pressure, causing flue gases to spill into the living space and disrupting burner operation.
Start free practice for Gas Fitter Practice
200 questions · no signup required · 40 free questions per day
Question: Which of the following is a common symptom of a blocked or improperly sized vent connector?
Answer options:
- Excessively hot flue gases. ✅ Pilot light extinction and rollout.
- Reduced gas consumption.
- Increased efficiency of the appliance.
Correct answer: Pilot light extinction and rollout.
Explanation: A blocked vent leads to back-pressure, causing flue gases to spill into the living space and disrupting burner operation.
Start free practice for Gas Fitter Practice
200 questions · no signup required · 40 free questions per day
More about Gas Fitter Practice
Related Questions
- What is the maximum allowed pressure for a propane system supplying a residential appliance?
- When installing a gas outdoor appliance, what is the minimum required clearance from an opening into a buildin
- Which code specifies the requirements for the installation of propane-burning appliances and equipment?
- What is the maximum allowed pressure drop for gas piping within a building, from the point of delivery to the
- Which of the following is the primary purpose of a drip leg (sediment trap) in a gas piping system?
- What is the minimum air-to-gas ratio required for complete combustion of natural gas?
More for Gas Fitter Practice candidates
Practice tests
Question explanations
- What is the maximum allowed pressure for a propane system supplying a residential appliance?
- When installing a gas outdoor appliance, what is the minimum required clearance from an opening into a buildin
- Which code specifies the requirements for the installation of propane-burning appliances and equipment?
- What is the maximum allowed pressure drop for gas piping within a building, from the point of delivery to the
Ready to practice?
Free, no signup required. Build a wrong-question list as you go.
Start Free Gas Fitter Practice Practice →Related courses
Other Canadian certifications candidates often prepare for alongside this one.