Ohio Plumbing Contractor License Exam Exam Prep
Free practice questions

Free OH-PLB Practice Questions

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The OH-PLB exam has 101 questions and runs 4 hours.

Question 1

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Correct answer: A - A

What's on the OH-PLB exam

The Ohio Plumbing Contractor License Exam (OH-PLB) exam is organized into 9 knowledge domains. These free practice questions are drawn from across them so you can see where you're strong and where to study:

  1. General Knowledge 8% of exam
  2. General Regulations 20% of exam
  3. Plumbing Fixtures 6% of exam
  4. Water Supply Systems 10% of exam
  5. Drainage, Waste, and Sanitary Vents 24% of exam
  6. Indirect Wastes 3% of exam
  7. Roof Drain Piping 4% of exam
  8. Specialty Plumbing 5% of exam
  9. Isometric Analysis 20% of exam

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