Comment by bluGill
2 days ago
Music might be allowed - though the factory is often loud enough that it isn't really practical. You still need to be able to hear the safety signals though.
YouTube cannot be allowed - you need to be ready to work when the line moves the next part to you. There are also safety concerns with watching youtube instead of the various hazards which are always there.
If the factory is so loud that listening to music isn't practical, the workers should have hearing protection that would limit the effectiveness of safety signals...