G3 - Gas Technician Level 3 Codes, Acts, and Regulations 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?

Accepted Answer

Under the general supervision of a G1, G2, or DA certificate holder

Answer

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?

Accepted Answer

Inform the G2 technician that the location does not meet the minimum required clearance.

Answer

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)?

Accepted Answer

To enhance public safety by administering and enforcing technical standards.

Answer

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?

Accepted Answer

Immediately shut off the supply of gas to the appliance.

Answer

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?

Accepted Answer

Piping and tubing systems extending downstream from a natural gas meter.

Answer

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.

G3 - Gas Technician Level 3 Certification Practice Test

G3 - Gas Technician Level 3 Certification Practice Test

G3 - Gas Technician Level 3 Codes, Acts, and Regulations Questions and Answers