Answer:
The women who worked in the factory had to be careful not to get injured in the machinery. It was safe enough or the government would have done something about it. Watch history channel to see the women working. Now, it was probably more dangerous for the women who had to fly the planes from one location to another as shuttle pilots. Also, the poor nurses had to be careful not to contact Typhus or any other awful disease.
Not only were women working to make planes, ships and tanks but they also made explosives to fill the bombs and shells, there were some accidents during this process.
Some women operated anti-aircraft guns and others were attached to the headquarters of fighting units in France after D-Day.