Practice Test Geeks(CPI) Certified Pool & Spa Inspector Practice Test
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Pump, Motor & Heater Inspection Flashcards

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

Read the first 7 Pump, Motor & Heater Inspection flashcards as text

  1. What does a high-pitched squealing noise from a pool pump motor most commonly indicate?

    Answer: Worn or failing bearings

    High-pitched squealing from a pool pump motor is a classic symptom of worn or failing bearings that require replacement.

  2. When inspecting a gas pool heater, what is the purpose of the pressure switch?

    Answer: It ensures adequate water flow before allowing ignition

    The pressure switch on a gas pool heater verifies that sufficient water flow is present before permitting ignition, preventing dry-fire damage.

  3. A pool pump is losing prime repeatedly. Which condition should an inspector check FIRST?

    Answer: Suction-side fittings and lid O-ring for air leaks

    Repeated loss of prime is most commonly caused by air infiltration on the suction side, including a deteriorated strainer lid O-ring.

  4. What is the standard maximum temperature setting for a residential pool heater thermostat per most safety guidelines?

    Answer: 104°F

    Most safety guidelines and codes limit residential pool/spa heater thermostats to a maximum of 104°F to prevent scalding.

  5. During a CPI inspection, you observe white calcium deposits inside a gas heater's heat exchanger tubes. This condition primarily indicates:

    Answer: High calcium hardness and scale buildup reducing heat transfer

    White calcium scale inside heat exchanger tubes results from high calcium hardness and restricts water flow and heat transfer efficiency.

  6. What does the term 'turnover rate' refer to in relation to a pool pump system?

    Answer: The time required to circulate the entire pool volume through the filtration system once

    Turnover rate is the time needed to filter the entire pool volume once, with most codes requiring at least one turnover every 6–8 hours.

  7. An inspector finds that a pump's GFCI outlet trips immediately when the pump starts. What is the most likely cause?

    Answer: A ground fault in the motor windings or wiring

    Immediate GFCI tripping upon motor start indicates a ground fault condition in the motor windings or associated wiring that requires repair.