G3 - Gas Technician Level 3 Codes, Acts, and Regulations Questions and Answers 1 — Questions and Answers
Question 1: According to Ontario Regulation 215/01, a Gas Technician 3 (G3) certificate holder is permitted to work on gas appliances under what condition?
- Independently on appliances up to 400,000 Btuh
- Under the general supervision of a G1, G2, or DA certificate holder (Correct answer)
- Only on propane appliances after completing a specialized course
- Under the direct supervision of another G3 certificate holder
Correct answer: Under the general supervision of a G1, G2, or DA certificate holder
Ontario Regulation 215/01, Section 22, specifies that a G3 certificate holder may perform functions on propane or natural gas appliances under the general supervision of a G1, G2, or Domestic Appliance (DA) certificate holder, provided they have demonstrated the necessary skills.
Question 2: A G3 technician is assisting a G2 technician with the installation of a new natural gas furnace. They notice that the planned vent termination is located 2 feet below a window that can be opened. According to the CSA B149.1 Natural Gas and Propane Installation Code, what is the correct action to take?
- Proceed with the installation as planned, as the clearance is sufficient.
- Inform the G2 technician that the location does not meet the minimum required clearance. (Correct answer)
- Install a vent guard and proceed with the installation.
- Relocate the vent termination to be at least 6 feet away from the window.
Correct answer: Inform the G2 technician that the location does not meet the minimum required clearance.
The CSA B149.1 code specifies minimum clearances for vent terminations to ensure that flue gases do not enter the building. Table 5.3 of the code requires a minimum clearance of 3 feet below an openable window for an appliance with an input up to 100,000 Btuh. Therefore, 2 feet is insufficient and the supervising technician must be notified.
Question 3: Which of the following is the primary purpose of the Technical Standards and Safety Act, 2000 (TSSA)?
- To set the retail prices for natural gas and propane.
- To provide training and apprenticeships for skilled trades.
- To enhance public safety by administering and enforcing technical standards. (Correct answer)
- To certify the energy efficiency of gas appliances.
Correct answer: To enhance public safety by administering and enforcing technical standards.
The purpose of the Technical Standards and Safety Act, 2000, is to enhance public safety in Ontario by providing for the efficient and flexible administration of technical standards for various sectors, including fuels.
Question 4: While performing maintenance on a water heater under the supervision of a G2 technician, a G3 technician discovers a condition they believe constitutes an immediate hazard. According to Ontario Regulation 212/01 (Gaseous Fuels), what is the first step the supervising technician must take?
- Immediately shut off the supply of gas to the appliance. (Correct answer)
- Complete the maintenance and schedule a follow-up inspection.
- Inform the customer that they have 30 days to correct the issue.
- Tag the appliance with a 'B' tag.
Correct answer: Immediately shut off the supply of gas to the appliance.
Ontario Regulation 212/01 specifies procedures for handling hazardous conditions. If a technician finds a condition that constitutes an immediate hazard, they must immediately shut off the gas supply to the appliance and promptly notify the user and the gas distributor of the unacceptable condition.
Question 5: The CSA B149.1 Natural Gas and Propane Installation Code applies to which of the following installations?
- Gas transmission pipelines operated by a utility.
- The storage and handling of propane at a bulk plant.
- Piping and tubing systems extending downstream from a natural gas meter. (Correct answer)
- The design of gas-fired turbines in a power generation facility.
Correct answer: Piping and tubing systems extending downstream from a natural gas meter.
The scope of the CSA B149.1 code covers the installation of gas piping and appliances downstream of the utility's meter or from the propane tank regulator. It does not apply to utility-owned transmission lines or large-scale storage facilities, which are covered by other codes.
Question 6: A G3 technician is asked by their supervising G2 to install a section of gas piping less than 2.5 inches in diameter. Under Ontario Regulation 215/01, is this activity permitted for a G3 holder?
- No, only G2 and G1 technicians can install gas piping.
- Yes, but only if they are under direct, in-person supervision at all times.
- No, G3 technicians are only permitted to perform maintenance tasks.
- Yes, if they have demonstrated the required skill and are working under general supervision. (Correct answer)
Correct answer: Yes, if they have demonstrated the required skill and are working under general supervision.
Ontario Regulation 215/01, Section 22, allows a G3 certificate holder, under the general supervision of a G1, G2, or DA holder, to install, test, activate, or purge gas piping or tubing less than 2.5 inches in diameter, provided their skills for such work have been documented by the supervising certificate holder.
G3 - Gas Technician Level 3 Codes, Acts, and Regulations Questions and Answers 1
According to Ontario Regulation 215/01, a Gas Technician 3 (G3) certificate holder is permitted to work on gas appliances under what condition?