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Class 4 (4th Engineer) SSEP 📅 Sep 2025

Exam Question

(a) What are the components of a typical Self Content Breathing Apparatus (SCBA)? (4)

(b) State the requirements that govern the SCBA sets and its ready availability during an emergency. (10)

(c) Describe the pre-donning checks for a shipboard SCBA unit before entering a confined or smoke-filled space. (6)

Reference Answer

### (a) Components of a Typical Self-Contained Breathing Apparatus (SCBA)
A shipboard SCBA is a critical piece of life-saving equipment, designed to provide breathable air in an atmosphere that is Immediately Dangerous to Life or Health (IDLH). Its main components are:
1. **Compressed Air Cylinder:**
* **Function:** Stores high-pressure breathable air (typically 200 or 300 bar).

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