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Module 18 — Electric Power Plant

18.4.2 — Fuel Cells and Accessories

Practice questions test what you know. This note teaches what you don’t.

Question banks train recall. The questions that decide a pass are the borderline ones, where two answers look right — and those are won by understanding. That is what this note is written for.

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Chapter 18.4.2 covers the fuel cell: the device that turns hydrogen and oxygen into electricity without burning them, the equipment it needs around it to work, the ways hydrogen can be carried on an aircraft, and how a fuel cell is joined to the rest of an electric power plant. It is part of 18.4, the electric energy system, and like every topic in Module 18 it is set at knowledge level 3. Of the 76 multiple-choice questions in the …

5 sections 6 worked examples 3 key formulas 10 tables 3 diagrams 5 tips 4 warnings

53 exam-style questions in our bank test this topic. This note teaches the theory behind every one of them.

What you will learn

  1. Principles of Fuel Cell Operation
  2. Types of Fuel Cells Applicable to Aviation
  3. Balance of Plant Components
  4. Hydrogen Storage Concepts (Overview)
  5. Integration with Electric Power Plant Systems
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