Practice Test Geeks(EGSA) Electrical Generating Systems Association Certified Practice Test
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Load Bank Testing Flashcards

7 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 7 Load Bank Testing flashcards as text

  1. What parameter must be verified before connecting a load bank to a generator to confirm compatibility?

    Answer: The load bank's voltage and frequency rating match the generator output

    The load bank voltage and frequency ratings must match generator output to prevent equipment damage and ensure accurate testing.

  2. During a 2-hour full-load test, the coolant temperature gradually rises above the normal operating range. The most likely cause is:

    Answer: A restricted cooling system or low coolant level

    Rising coolant temperature under sustained load typically indicates a coolant system restriction, low coolant level, or failing thermostat.

  3. What is the purpose of recording generator data at regular intervals (e.g., every 15 minutes) during a load bank test?

    Answer: To track parameter trends that may indicate developing problems

    Interval data logging captures trending parameters that reveal degradation or instability not visible at a single snapshot in time.

  4. Which NFPA standard governs the testing requirements for emergency standby generators in healthcare facilities?

    Answer: NFPA 110

    NFPA 110 sets the standard for Emergency and Standby Power Systems, including load testing intervals and acceptance criteria.

  5. A load bank test reveals the generator frequency drops from 60 Hz to 57 Hz under full load and does not recover. This most likely indicates:

    Answer: A governor or fuel delivery problem

    Frequency is controlled by engine speed; a persistent drop under load points to governor malfunction or inadequate fuel delivery.

  6. What safety practice must be followed when disconnecting a load bank from a running generator?

    Answer: Remove the load in steps rather than all at once

    Load must be stepped down gradually to prevent a sudden load rejection that can cause dangerous voltage and speed spikes.

  7. When sizing a load bank for testing a 500 kW generator rated at 0.8 PF, what minimum kW capacity load bank is required for full-load resistive testing?

    Answer: 500 kW

    For resistive-only testing, the load bank must match the generator's kW rating (500 kW), since resistive load draws at unity power factor.