Practice Test GeeksCTE - Certified Telecommunications Engineer Practice Test
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Power Systems & Grounding Flashcards

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

Read the first 7 Power Systems & Grounding flashcards as text

  1. What is the primary purpose of grounding in telecommunications systems?

    Answer: To provide a stable reference potential and protect personnel and equipment from electrical hazards

    Grounding establishes a common reference potential and provides a safe path for fault currents, protecting both personnel and equipment from electrical hazards.

  2. Which ANSI/TIA standard specifically governs grounding and bonding for telecommunications systems?

    Answer: ANSI/TIA-607

    ANSI/TIA-607 is the dedicated standard for commercial building grounding and bonding requirements for telecommunications systems.

  3. What DC voltage is most commonly used in North American central office power systems?

    Answer: -48V DC

    -48V DC is the industry standard for North American central office power systems, chosen historically for safety and corrosion resistance on the grounded return.

  4. What does the acronym NEBS stand for in telecommunications equipment standards?

    Answer: Network Equipment Building System

    NEBS (Network Equipment Building System) is a set of requirements developed by Telcordia (formerly Bellcore) covering safety, spatial, environmental, and electrical criteria for telecom equipment.

  5. What battery chemistry is most commonly used for backup power in telecommunications facilities?

    Answer: Valve-regulated lead-acid (VRLA)

    Valve-regulated lead-acid (VRLA) batteries dominate telecom backup power installations due to their maintenance-free design, reliability, and cost-effectiveness at large scale.

  6. What is a Telecommunications Grounding Busbar (TGB)?

    Answer: A copper busbar that serves as the central grounding reference point for telecommunications equipment within a telecommunications room

    A TGB is a copper busbar installed in a telecommunications room that serves as the central grounding connection point for all telecommunications equipment in that space.

  7. Per ANSI/TIA-607, what is the minimum conductor size specified for a Telecommunications Bonding Backbone (TBB)?

    Answer: 6 AWG

    ANSI/TIA-607 specifies a minimum of 6 AWG copper conductor for the Telecommunications Bonding Backbone (TBB) connecting TGBs to the TMGB.