G2 Gas Fitter Practice Exam

Disable ads (and more) with a membership for a one time $2.99 payment

Prepare for the G2 Gas Fitter Test. Study using flashcards and multiple choice questions, with hints and detailed explanations for each question. Ensure your success!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

Which feature must gas-fired water heaters always include for safety?

Automatic ignition system
High limit control
Temperature and pressure relief valve
Regular maintenance schedule

The correct answer is: Temperature and pressure relief valve

Gas-fired water heaters must always include a temperature and pressure relief valve for safety reasons. This component is crucial in preventing dangerous situations that can arise from excessive temperature or pressure buildup within the water heater tank. When the water heats up, it expands, and if there is a malfunction or failure in the heating system, pressure can increase to a level that poses a risk of explosion. The temperature and pressure relief valve acts as a safety mechanism by allowing excess pressure and temperature to escape, venting hot water and steam, and thereby protecting the integrity of the tank and the surrounding area. In contrast, while features like automatic ignition systems, high limit controls, and regular maintenance schedules contribute to the safety and efficiency of gas-fired water heaters, they do not serve the same critical protective role as the temperature and pressure relief valve. Without this valve, the water heater could operate in an unsafe condition, leading to potentially hazardous outcomes.