Practice Test Geeks(EGSA) Electrical Generating Systems Association Certified Practice Test
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EGSA Fuel Systems and Storage Flashcards

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

Read the first 6 EGSA Fuel Systems and Storage flashcards as text

  1. According to NFPA 30 and NFPA 110, what is the maximum allowable capacity for a day tank installed inside a building for a diesel generator set?

    Answer: 100 gallons

    NFPA 30 and NFPA 110 permit a maximum day tank capacity of 100 gallons inside a building for diesel-fueled generator sets.

  2. What is the primary purpose of a fuel polishing system on a diesel generator installation?

    Answer: Remove water, sediment, and microbial contamination from stored fuel

    Fuel polishing systems circulate stored diesel through filters and water separators to remove contaminants that degrade fuel quality over time.

  3. Which ASTM standard governs the specification for diesel fuel used in standby generator applications in the US?

    Answer: ASTM D975

    ASTM D975 is the standard specification for diesel fuel oils, including No. 2-D commonly used in standby generator sets.

  4. What microbial growth condition is commonly found in diesel fuel storage tanks and can clog filters and damage fuel systems?

    Answer: Sulfate-reducing bacteria and fungi at the fuel-water interface

    Sulfate-reducing bacteria and fungi thrive at the diesel-water interface in storage tanks, forming biomass that clogs filters and corrodes tanks.

  5. What is the recommended maximum storage life for diesel fuel in a properly maintained and sealed tank before polishing or testing is required?

    Answer: 12 months

    Diesel fuel has a practical storage life of approximately 12 months; beyond that, oxidation and microbial growth degrade fuel quality unless treated or polished.

  6. Which type of fuel tank is most commonly required for generator installations at critical facilities to meet NFPA 110 Level 1 requirements?

    Answer: Double-wall sub-base or underground tank with leak detection

    NFPA 110 Level 1 facilities require fuel tanks with secondary containment and leak detection, typically double-wall construction, to prevent fuel loss and environmental contamination.