Practice Test GeeksSE Engr. - Solar Energy Engineering Certification Practice Test
← All SE ENGR. Flashcard Decks

Quality Assurance Flashcards

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

Read the first 7 Quality Assurance flashcards as text

  1. Which IEC standard defines quality management system requirements specific to PV module manufacturing?

    Answer: IEC 62941

    IEC 62941 supplements ISO 9001 with requirements specific to consistent PV module manufacturing.

  2. An IR scan of an operating string shows one module uniformly warmer than its neighbors with no localized hot spots. What is a likely cause?

    Answer: The module is open-circuited or disconnected from the string

    A disconnected module produces no current, so all absorbed energy becomes heat and the whole module runs warmer.

  3. What does a Performance Ratio (PR) per IEC 61724 represent?

    Answer: Ratio of actual energy yield to the reference yield implied by irradiance and STC rating

    PR compares final system yield to reference yield, capturing all system losses independent of irradiance level.

  4. For calibrated instruments used in US PV commissioning, measurement traceability should ultimately link to which organization?

    Answer: NIST

    Calibration in the US should be traceable to national standards maintained by NIST.

  5. During a factory audit, the auditor finds lamination temperature profiles are not recorded per batch. Which risk is most directly increased?

    Answer: Undetected under-cured encapsulant leading to delamination

    Without lamination process records, under-curing (low gel content) can escape detection and cause field delamination.

  6. Which practice best verifies that structural fasteners on a racking system were properly tightened during installation QA?

    Answer: Verification with a calibrated torque wrench and applied torque marks

    Calibrated torque checks with torque-stripe marking provide objective, auditable evidence of proper tightening.

  7. A string with 20 modules shows a measured Isc significantly lower than adjacent strings at the same irradiance, while Voc is normal. What is the most likely cause?

    Answer: Shading or heavy soiling on part of the string

    Series current is limited by the weakest module, so shading or soiling lowers string Isc while Voc stays largely unaffected.