The "Principles and Practice of Engineering" (PPE) is a professional examination in the field of engineering, primarily in the United States. It assesses the knowledge and skills of engineers who have gained sufficient work experience after obtaining their degree. Passing the PPE is often a requirement for obtaining a professional engineering license, which allows engineers to practice independently. The exam covers various topics, including ethics, project management, and engineering principles. It is designed to ensure that engineers are competent in applying their technical knowledge to real-world problems. Successful candidates demonstrate their ability to uphold safety, quality, and professional standards in their work.