Self-Contained Breathing Apparatus

Listed below is the table of contents of the questions on Breathing Apparatus Questions as they appear in the online study. Click on the “Enter Online Study” link above to begin preparing for your exam. If you are studying for a United States Coast Guard Deck License exam which includes any of these modules, you should  work through these questions in the online study until you are scoring 80% or better on all of them. Go to the following link to preview a cross section of the questions with correct answer on this subject that are included in our online study database.

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From the pull down menu in the online study select from the following topics:

  • Deck Department
  • All Deck Examination Questions As of March 24, 2014 Regulations
  • Deck General – Safety
    • Self-Contained Breathing Apparatus
      • General
      • Lifeline signals

Self-contained breathing apparatus: (SCBA):  A device providing air or oxygen to the user who wears the entire device; thus the user is completely mobile. However, the device can supply air or oxygen for only a limited amount of time.

Oxygen breathing apparatus (OBA):  a type of self-contained breathing apparatus that provides oxygen chemically.

Rescue equipment for a pumproom, or any space that may contain contaminated or oxygen-deficient air, includes a self-contained breathing apparatus, a harness, and a lifeline that is longer than twice the depth of the pumproom. Also. have someone standby outside the space being entered.

  • To remember the signals for using a lifeline, recall the word “OATH” that stands for:
    • O = OK – l pull.
    • A = Advance -feed me slack – 2 pulls .
    • T = Take up -retrieve slack – 3 pulls.
    • H = Help – 4 pulls .  
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