Cathodic Protection Specialist (CP4) Exam Prep
Free practice questions

Free CP4 Practice Questions

1 exam-style questions with answers and explanations. Tap an answer to check yourself. When you're ready, take the scored version in the free practice test.

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The CP4 exam has 75 questions and runs 6 hours.

Question 1

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Correct answer: A - A

What's on the CP4 exam

The Cathodic Protection Specialist (CP4) (CP4) exam is organized into 13 knowledge domains. These free practice questions are drawn from across them so you can see where you're strong and where to study:

  1. Basics (2%-3%)
  2. Insulators and Shorts (1%-3%)
  3. Periodic Surveys (1%-3%)
  4. Reference Cells (2%-5%)
  5. Field Tests (7%-16%)
  6. DC Stray Current Interference (6%-12%)
  7. AC Mitigation (2%-3%)
  8. Internal (1%-3%)
  9. Corrosion Theory (5%-10%)
  10. Polarization (3%-8%)
  11. Cathodic Protection (28%-35%)
  12. Codes and Compliance (1%-3%)
  13. Design (19%-23%)

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