Practice Test Geeks(CPE) Certified Plant Engineer Practice Test
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Facility Operations & Maintenance Flashcards

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

Read the first 7 Facility Operations & Maintenance flashcards as text

  1. A plant engineer notices excessive bearing temperatures on a newly installed pump. After confirming correct lubrication, the NEXT most likely cause to investigate is:

    Answer: Shaft misalignment between pump and motor

    Shaft misalignment creates excessive radial and axial loads on bearings, causing elevated temperatures even with proper lubrication.

  2. What is the recommended method for testing the integrity of a pressure vessel before returning it to service after repair?

    Answer: Hydrostatic pressure test at 1.5 times MAWP

    Hydrostatic testing at 1.5 times the Maximum Allowable Working Pressure (MAWP) per ASME code verifies structural integrity after repair.

  3. In a facility energy audit, which calculation determines a motor's actual operating efficiency compared to its nameplate rating?

    Answer: Measured shaft output power ÷ measured electrical input power

    Operating efficiency equals actual shaft output power divided by electrical input power, revealing if the motor is degraded from its nameplate rating.

  4. What is the purpose of an interlock system on a large industrial fan or blower?

    Answer: To prevent the fan from operating under unsafe conditions

    Interlocks automatically shut down or prevent startup of equipment when monitored parameters exceed safe operating limits.

  5. A facility's electrical demand charges are increasing. Which strategy MOST directly reduces peak demand billing?

    Answer: Load shedding or staggering large motor starts during peak periods

    Staggering large motor starts or shedding non-critical loads during peak periods directly reduces the highest 15- or 30-minute demand interval used for billing.

  6. Which type of valve is MOST appropriate for throttling flow control in a process line?

    Answer: Globe valve

    Globe valves are designed for throttling because their disc moves perpendicular to flow, allowing precise intermediate positions.

  7. In a facility's fire protection system, a dry-pipe sprinkler system is preferred over a wet-pipe system when:

    Answer: Piping is located in unheated areas subject to freezing

    Dry-pipe systems fill with pressurized air rather than water, preventing freezing in cold environments such as unheated warehouses.