Practice Test Geeks(MTC) Marine Technician Certification Practice Test
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Safety Systems & Standards Flashcards

7 cards from real MTC 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 Systems & Standards flashcards as text

  1. What is the primary hazard associated with hydrogen gas accumulation in a battery compartment on a marine vessel?

    Answer: Explosion risk when hydrogen reaches 4–75% concentration in air

    Hydrogen gas released during battery charging is explosive at concentrations between 4% and 75% in air, requiring ventilation of battery compartments.

  2. Under STCW, how many hours of rest must a watchkeeping officer receive in any 24-hour period?

    Answer: 10 hours minimum

    STCW mandates a minimum of 10 hours of rest in any 24-hour period to prevent fatigue-related accidents at sea.

  3. What condition does a vessel's heel angle beyond its angle of vanishing stability indicate?

    Answer: The vessel will capsize and will not recover

    Beyond the angle of vanishing stability, the righting moment becomes zero or negative, meaning the vessel will capsize without recovery.

  4. Which type of distress signal is considered the most effective for daytime use in open ocean conditions?

    Answer: Orange smoke signal

    Orange smoke signals are highly visible to aircraft and vessels during daytime and are recognized as the most effective daytime distress signal.

  5. According to USCG regulations, what is the required response time for operating a vessel's main watertight doors during a drill?

    Answer: Within 60 seconds

    USCG and SOLAS regulations require that watertight doors can be closed and operated within 60 seconds during emergency drills.

  6. What is the purpose of a Halon replacement agent (such as FM-200 or Novec 1230) in marine fire suppression?

    Answer: It suppresses fire by chemically interrupting combustion without oxygen depletion

    Clean agent alternatives like FM-200 and Novec 1230 suppress fires through chemical interruption of the combustion chain reaction without significantly depleting oxygen.

  7. Under 46 CFR Subchapter T, small passenger vessels must conduct a safety orientation for passengers within what timeframe after departure?

    Answer: Before the vessel leaves the dock

    46 CFR Subchapter T requires small passenger vessel operators to conduct a safety briefing for all passengers before the vessel gets underway.