Is it 'No injury' or 'Nobody injured' ?

It seems very weird english.

Slogans are catchy phrases which are used as marketing technique or to emphasize a point. In Quality parlance , slogans can be used for QC or QA.

http://brandongaille.com/list-34-catchy-quality-control-slogans/ - See some examples of QC slogans.

Now the above question is really weird, the slogan is neither part of safety policy or "plan quality", so to me its either just a slogan or QA. but it doesnt really convey that one has to follow any process or something, so it not even part of QA. See some QA slogans http://info.ibs-us.com/blog/bid/34322/Top-Quotes-about-Quality-Assurance...

Just understand the usage of slogans and dont worry too much about such poorly worded questions. 

Slogans are catchy phrases which are used as marketing technique or to emphasize a point. In Quality parlance , slogans can be used for QC or QA.

http://brandongaille.com/list-34-catchy-quality-control-slogans/ - See some examples of QC slogans.

Now the above question is really weird, the slogan is neither part of safety policy or "plan quality", so to me its either just a slogan or QA. but it doesnt really convey that one has to follow any process or something, so it not even part of QA. See some QA slogans http://info.ibs-us.com/blog/bid/34322/Top-Quotes-about-Quality-Assurance...

Just understand the usage of slogans and dont worry too much about such poorly worded questions.