NTN REACT case studies

NTN REACT is a reactor-operator style certification exam built around the knowledge a nuclear power plant operator needs at the console: how the core behaves, how systems respond, and how to act safely when they do not. It suits candidates preparing for licensed operator roles, simulator instructors, maintenance and engineering staff moving toward operations, and technicians who want a structured way to prove their understanding of pressurized-water reactor fundamentals. The exam is organized into seven weighted domains: reactor theory and nuclear physics (20%), reactor operations and control (20%), radiation protection and health physics (15%), nuclear safety and emergency procedures (15%), reactor systems and components (15%), instrumentation and control (10%), and regulatory requirements and documentation (5%). Questions test applied reasoning rather than trivia, so expect to interpret trends, choose a response to an off-normal condition, and explain why a procedure exists. The NTN REACT case studies are 5 cases and about 3,689 words.