Final answer:
CNG cylinder inspections should be done every 3 years or every 36,000 miles to ensure safety and compliance with regulations.
Step-by-step explanation:
In the case of a CNG (Compressed Natural Gas) cylinder, it is crucial to regularly inspect its integrity to ensure safety. The frequency of CNG cylinder inspection depends on various factors, such as the country's regulations, cylinder type, and usage. However, a common guideline is to conduct inspections every 3 years or every 36,000 miles.
The inspection focuses on checking for leaks, corrosion, damage, and the overall condition of the cylinder. This is typically done by a trained professional or certified technician who follows specific procedures and uses specialized equipment.
The inspection process involves visually examining the cylinder, conducting pressure tests, and ensuring compliance with safety standards. If any issues are found, appropriate repairs or replacements may be necessary to maintain the cylinder's safety and effectiveness.