Gas Fitter Practice Test

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Study for the Gas Fitter Test. Enhance your knowledge with flashcards and multiple-choice questions, each accompanied by hints and explanations. Ace your exam!

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!

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What must be ensured before electronic cells are removed for cleaning?

Air proving switch must be open
Pre-filter must be removed
Cells must be de-energized and discharged
Fan switch must be in the automatic position

The correct answer is: Cells must be de-energized and discharged

Before removing electronic cells for cleaning, it is essential to ensure that the cells are de-energized and discharged. This is critical for safety reasons, as it prevents the risk of electrical shock or injury while handling the cells. De-energizing and discharging the cells ensures that no electrical current is present and that any residual charge that could cause a shock has been safely managed. Cleaning electronic components while they are energized or still holding a charge can lead to dangerous situations and damage to the equipment. The other options might refer to necessary operational procedures but do not address the specific safety requirement regarding the condition of the cells before removal. Ensuring a safe working environment is the primary concern when dealing with electronic cells, and de-energizing them is a definitive step in that process.