Answer:
1. Corrective actions are actions executed to prevent occurrences of an identified hazard or to prevent the recurrence of an issue. Corrective actions may also question and seek proper handling of a weakness identified in a safety management system.
2. Project managers employ corrective actions when a specific task or project may have lost focus or somehow deviated form the pre-specified direction it was intended to take.
3. The root causes of corrective actions are determined by confirming the identified root cause causes. Basically, a corrective action should correspond to the root cause identified earlier in order to eliminate the real root cause and prevent recurrence of the problem.
4. Verifying the effectiveness of corrective and preventive actions (CAPAs) closes the gap between identifying a problem and completing the actions to solve it. It is reasonable to assume that if a problem is worth solving, it's also worth verifying that the solution worked.
5. It could result to total loss in product or a ruin in the normal sequence of an existing system