Kentucky Boiler Practice Exam

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Prepare for the Kentucky Boiler Exam. With flashcards and multiple choice questions, each question provides hints and explanations. Maximize your readiness for the test!

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What is the maximum pipe diameter allowed for non-ammonia refrigeration?

1 inch
2 inches
3 inches
4 inches

The correct answer is: 2 inches

In non-ammonia refrigeration systems, the maximum permitted pipe diameter is two inches. This limitation is established to ensure the effective operation and safety of the refrigeration system while maintaining an appropriate velocity of the refrigerant flow. Smaller diameters help mitigate risks like refrigerant pooling and ensure that the refrigerant maintains proper pressure throughout the system. Larger diameters could lead to inadequate refrigerant velocities, resulting in ineffective heat transfer and potential operational issues. Thus, the two-inch maximum is a critical guideline in maintaining system performance and safety standards. Understanding this limit is essential for anyone working with refrigeration systems to ensure compliance with regulations and optimal functioning.