Practice Test Geeks(FST) Fire Safety Technician Certification Practice Test
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Electrical Fire Safety Flashcards

7 cards from real FST practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Electrical Fire Safety flashcards as text

  1. What is the most common cause of electrical fires in residential occupancies according to fire statistics?

    Answer: Faulty or worn wiring and related equipment

    Faulty or worn wiring and related electrical equipment is the leading cause of residential electrical fires, accounting for the majority of structure fires each year.

  2. What does GFCI stand for, and at what current level does a standard GFCI device trip?

    Answer: Ground Fault Circuit Interrupter; 5 milliamps

    GFCI stands for Ground Fault Circuit Interrupter and is designed to trip at 5 milliamps (0.005 amperes) to protect against electric shock and associated ignition hazards.

  3. Arc Fault Circuit Interrupters (AFCIs) are required by the National Electrical Code primarily to protect against fires caused by:

    Answer: Arcing conditions in wiring and connected devices

    AFCIs detect arcing conditions in wiring and equipment that standard breakers cannot detect, as arcing can ignite surrounding materials without drawing enough current to trip a conventional breaker.

  4. The 'ampacity' of an electrical conductor is best defined as:

    Answer: The maximum current a conductor can carry under specified conditions without exceeding its temperature rating

    Ampacity refers to the maximum current-carrying capacity of a conductor under specific conditions of use, including ambient temperature and installation method, before heat damage occurs to insulation.

  5. A circuit breaker that repeatedly trips at the same location is most likely indicating:

    Answer: A persistent overload, short circuit, or ground fault condition

    Repeated tripping of a circuit breaker indicates a genuine electrical problem such as overloading, a short circuit, or a ground fault that must be investigated and corrected — not simply reset.

  6. Which type of older residential electrical panel has been widely identified as a fire hazard due to breakers that may fail to trip under overload conditions?

    Answer: Federal Pacific Electric (FPE) Stab-Lok panels

    Federal Pacific Electric Stab-Lok panels have been identified as a significant fire hazard because their breakers frequently fail to trip during overload conditions, allowing wiring to overheat and ignite fires.

  7. What is the minimum clear working space width required in front of electrical service equipment under NFPA 70 (National Electrical Code)?

    Answer: 30 inches

    The NEC requires a minimum 30-inch width of clear working space in front of electrical service equipment to allow safe operation, inspection, and emergency disconnection access.