The major American industry which was affected by the pullman strike of 1894 is the:
This was the massive railroad boycott which was organised in 1894 as a way to protest the excess water and gas rates in addition to the lack of democracy amongst many reasons.
With this in mind, we can see that this Pullman strike was very significant as the railroad system lost millions of dollars.
Read more about Pullman strike here:
https://brainly.com/question/1656503