Practice Test Geeks(NABCEP) North American Board of Certified Energy Practitioners Solar Practice Test
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Safety Practices Flashcards

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

Read the first 7 Safety Practices flashcards as text

  1. An installer is stringing wire through conduit on a rooftop and feels resistance. A co-worker suggests using a lubricant. Which lubricant is safe to use with PV wiring in conduit?

    Answer: UL-listed wire-pulling lubricant compatible with conductor insulation

    Only UL-listed wire-pulling lubricants compatible with the conductor insulation type should be used; petroleum-based products can degrade certain insulation materials.

  2. Which condition requires a solar installer to immediately stop work and evacuate the roof?

    Answer: Lightning is visible or thunder is heard within 30 miles

    The 30-30 rule dictates that if thunder is heard or lightning is seen within 30 miles, work should stop and workers should seek shelter for at least 30 minutes after the last strike.

  3. A PV installer is asked to use a scissor lift to install racking on a carport structure. At what wind speed should work from the elevated platform cease?

    Answer: The manufacturer's rated maximum, typically 28–35 mph

    Aerial work platforms must be operated within manufacturer-specified wind speed limits, which are typically listed in the operator's manual and commonly range from 28–35 mph.

  4. What information must appear on a lockout/tagout tag to meet OSHA 29 CFR 1910.147 requirements?

    Answer: The authorized employee's name, reason for lockout, and date

    OSHA LOTO tags must identify the authorized employee who applied them, the reason for the lockout, and the date to ensure accountability and safe removal.

  5. During a site safety audit, an inspector finds workers not wearing hard hats while working below other crew members on a two-story commercial installation. Which OSHA standard is being violated?

    Answer: 29 CFR 1926.100 — Head Protection

    OSHA 29 CFR 1926.100 requires hard hats in construction areas where there is a risk of head injury from falling objects.

  6. A technician measures an unexpected voltage of 85V DC between the negative PV conductor and the equipment grounding conductor. What does this most likely indicate?

    Answer: A ground fault in the PV array

    Voltage between a PV conductor and the equipment grounding conductor indicates a ground fault, which must be investigated and cleared before further work.

  7. When disposing of a damaged lithium-ion battery from a solar-plus-storage system, what special handling is required beyond normal electrical waste disposal?

    Answer: Transport in a non-conductive sealed container, keep terminals covered, and follow carrier hazmat rules (UN3480)

    Damaged lithium-ion batteries are classified as hazardous materials (UN3480) and must be shipped in appropriate non-conductive containers with terminal protection per DOT/IATA regulations.