Hi! Very in general: We use "does" in the present tense, in questions with a third person subject (he, she, it). Whe use "does" with most verbs, except modal verbs (can, should, must). DOES she like chocolate? - DOES he work here? - - - We use "am, is, are" in questions related to our mood or the way we feel, (I am tired - ARE you tired? - He is angry - IS he angry?). I hope this link will be useful:

https://in.answers.yahoo.com/question/index?qid=20061108024227AA8zup6