G2 Gas Fitter Practice Exam

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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.

How many main types or classes of fires are there, which dictate the type of extinguisher required?

Three
Four
Five
Six

The correct answer is: Five

There are four main types or classes of fires, and understanding these classes is crucial for selecting the appropriate type of fire extinguisher. Fires are categorized based on the materials that are burning, which influence the combustion characteristics and the proper extinguishing methods. Class A fires involve ordinary combustible materials such as wood, paper, and textiles. Class B fires are fueled by flammable liquids and gases, like gasoline and oil. Class C fires involve energized electrical equipment, making it essential to use extinguishers that do not conduct electricity. Lastly, Class D fires consist of combustible metals, such as magnesium or sodium, which require specific extinguishing agents due to their unique burning properties. Selecting the correct fire extinguisher that corresponds to these classes ensures effective fire suppression while also ensuring the safety of the user and bystanders. Understanding these classifications allows individuals to recognize the fire risks prevalent in their environment and choose the right safety equipment accordingly.