Answer:
1. I think the cause of the accident was the carelessness of Mr. M.
2. The misfortune could have been prevented if Mr. M wore gloves for protection, and if he checked the machine first.
3. For me, it is Mr. M’s fault. As a newly hired draftsman, he should be aware of his safety and proper management such as wearing protective gloves or using isolation flier instead of using bare hands. At the same time, he didn't checked the machine first if it is plugged or not before touching it. It wasn't the management’s fault at the first place because they don't know what happened to the machine, although it is their fault that they didn't checked its parts if there are any problems.
Explanation:
These are only my opinions, but I hope this can help.
