Practice Test Geeks(MST) Marine Service Technician Practice Test
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Safety & Environmental Regulations Flashcards

7 cards from real MST 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 & Environmental Regulations flashcards as text

  1. Under 33 CFR 159, what size recreational vessel is required to have a Type I, II, or IV marine sanitation device (MSD) to manage sewage?

    Answer: Vessels with installed toilets, regardless of length

    Any vessel (recreational or commercial) equipped with an installed toilet must have an approved MSD under 33 CFR 159, regardless of vessel length.

  2. A technician installs a new battery bank on a vessel. Under ABYC E-10, what is required to prevent accidental shorting of the battery terminals?

    Answer: Insulated battery terminal covers or boots on all exposed terminals

    ABYC E-10 requires that all exposed battery terminals be protected with insulated covers or boots to prevent accidental short-circuit contact.

  3. Which regulation sets the requirements for engine exhaust emission certification labels that must be affixed to new marine spark-ignition engines sold in the US?

    Answer: 40 CFR Part 1045

    40 CFR Part 1045 contains EPA emission standards for spark-ignition marine engines and requires manufacturers to affix an EPA-certified emission control information label.

  4. What does a 'No Discharge Zone' (NDZ) mean for a vessel operating in that area?

    Answer: No sewage may be discharged overboard even if treated by a Type I or II MSD

    In an EPA-designated NDZ, all overboard discharge of sewage is prohibited, including discharge treated by Type I or II MSDs; holding tanks must be used.

  5. Under OSHA 29 CFR 1910.147, what procedure must a marine technician follow before servicing a vessel's inboard engine to prevent unexpected startup?

    Answer: Lockout/Tagout (LOTO) — disable and lock out the ignition and fuel systems

    OSHA's Control of Hazardous Energy standard (Lockout/Tagout) requires workers to isolate and lock out all energy sources before performing service that could result in unexpected machinery startup.

  6. A vessel's fire suppression system uses HFC-227ea (FM-200). What is this agent's primary advantage over older halon systems?

    Answer: It has zero ozone depletion potential and is not a controlled substance under the Montreal Protocol

    HFC-227ea has an ozone depletion potential of zero, making it a legal replacement for halon 1301, which is a controlled ozone-depleting substance under the Montreal Protocol.

  7. Which USCG-required label must appear on a portable fuel tank sold for use in recreational boats in the US?

    Answer: USCG-approved label showing compliance with 33 CFR 183 Subpart J

    Portable fuel tanks for recreational boats must be labeled as meeting USCG standards under 33 CFR Part 183, Subpart J, which covers construction and performance requirements.