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For the current investigation, one has selected the Polyvinyl Chloride (PVC) industry located in the Hisar District. PVC
plants are only regarded as commercially viable when all four units are in good operating condition. When all four of
the system's parts are in good operating order, the system operates at its peak efficiency. When three of the four units are operational, it operates at a reduced capacity. When two or more units fail, the system is said to be in a failed condition. There are separate rates of continuous failure and repair for each of the four units. There is always one repairman available. With the aid of accurate scenarios, it is still necessary to determine how disappointment/repair rates affect the MTSF, accessibility, and server at a busy time.