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Environmental Standards Flashcards

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

Read the first 7 Environmental Standards flashcards as text

  1. To discourage mold growth, EPA recommends keeping indoor relative humidity below what level?

    Answer: 60%

    EPA recommends indoor RH below 60%, ideally 30–50%.

  2. Loose-fill vermiculite attic insulation is a concern because much of it came from a Libby, Montana mine and may contain what?

    Answer: Asbestos

    Libby vermiculite was contaminated with asbestos, and EPA advises leaving it undisturbed.

  3. Under the EPA Lead and Copper Rule, what is the action level for lead in drinking water?

    Answer: 15 ppb

    The long-standing lead action level is 15 parts per billion.

  4. The 1986 Safe Drinking Water Act amendments limited solder and flux used in potable water systems to what lead content?

    Answer: 0.2% lead

    Lead-free solder and flux may contain no more than 0.2% lead.

  5. Under the federal Lead Disclosure Rule, sellers of pre-1978 housing must generally give buyers how long to conduct a lead inspection?

    Answer: 10 days

    Buyers get a 10-day opportunity for a lead risk assessment or inspection unless waived.

  6. Which EPA pamphlet must be given to buyers and tenants of pre-1978 housing under the Lead Disclosure Rule?

    Answer: Protect Your Family From Lead in Your Home

    The disclosure rule requires the 'Protect Your Family From Lead in Your Home' pamphlet.

  7. An inspector finds blackened copper wiring and AC coils plus a sulfur odor in a 2006 Florida home. What is the likely cause?

    Answer: Defective imported drywall

    Problem drywall from that era emits sulfur gases that corrode copper.