How do you identify the 5 factors associated with Jhana?
Applied thought and sustained thought are not the factors that you recognize, they are the factors that you generate. You know when you have them, because you are doing them!

Once you use applied and sustained thought properly, the factors of joy and ease (what you called rapture and happiness -- the translations I don't find precise) will emerge. These are very easy to recognize, because you will feel joyful and at ease! ;)