G2 Gas Fitter Practice Exam

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Study for the G2 Gas Fitter Exam with comprehensive quizzes and detailed explanations. Get equipped with the knowledge needed to pass your certification and advance your career in the gas fitter industry.

Practice this question and more.

What is the function of a boiler?

To cool air for air conditioning
To supply hot liquid or vapor for heating
To vent combustion gases
To filter dust from air

The correct answer is: To supply hot liquid or vapor for heating

A boiler serves the primary function of supplying hot liquid or vapor for heating purposes. This is achieved through the process of heating water or another fluid, which then circulates through a heating system to provide warmth to different spaces, such as homes or industrial facilities. The heated fluid can be delivered to radiators, underfloor heating systems, or other heating components, ensuring an efficient distribution of heat throughout the area. Understanding this function is crucial for gas fitters, as the proper installation and maintenance of boilers are vital for efficiency and safety in heating systems. The other options, while related to HVAC systems or equipment, do not pertain to the specific function of a boiler. For instance, cooling air for air conditioning is associated with cooling systems, venting combustion gases relates to exhaust systems, and filtering dust is part of air filtration systems. Only the second choice directly describes what a boiler does in heating applications.