CP 1 Study Guide (Cathodic Protection Tester)
This CP 1 study guide is built for AMPP Cathodic Protection Tester (CP1) exam preparation. It focuses on corrosion fundamentals, safe field practices, correct measurement technique, and basic cathodic protection concepts.
CP 1 establishes the foundation for all higher CP certifications. Your goal is clarity:
understand what corrosion is, how CP works, and how to take accurate field measurements safely.
Start here (how to use this guide)
- Understand corrosion basics first before moving into measurements.
- Focus on terminology — clear definitions prevent confusion later.
- Learn correct meter and reference electrode handling.
- Practice safe field behavior — safety awareness is part of the exam.
CP 1 exam domains (high-level)
- Basic corrosion principles (anode, cathode, electrolyte, current flow).
- Fundamentals of cathodic protection (what CP does and why).
- Field measurement basics (structure-to-electrolyte potential).
- Safety awareness (electrical safety, field hazards, safe meter use).
CP 1 is about understanding and correct execution — not advanced calculations.
CP 1 topic map
Corrosion fundamentals
- What corrosion is (electrochemical reaction)
- Anode vs cathode behavior
- Metallic path and electrolyte path
- Why current must complete a circuit
Cathodic protection basics
Field measurement basics
- Structure-to-electrolyte potential measurement
- Reference electrode purpose and handling
- Meter basics (polarity, stable readings)
- Recognizing obvious measurement errors
Safety awareness
- Electrical safety fundamentals
- Working near energized systems
- Basic PPE awareness
- General field hazard recognition
Practice strategy (CP 1)
- Master terminology.
- Visualize current flow.
- Practice labeling measurements correctly.
- Review safety scenarios carefully.
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Common CP 1 mistakes
- Confusing anode and cathode roles.
- Not understanding how current completes the circuit.
- Improper reference electrode placement.
- Ignoring safety considerations in field scenarios.
Study roadmap (repeatable)
Phase 1 — Fundamentals (1–2 weeks)
- Corrosion reactions
- Basic CP principles
- Terminology mastery
Phase 2 — Field basics (1–2 weeks)
- Structure-to-electrolyte measurement
- Reference electrode handling
- Basic troubleshooting
Phase 3 — Practice & review (ongoing)
- Short practice sets
- Review missed concepts
- Re-drill weak terminology areas