No, I don't think so, because in a dream you will always be able to find some piece of evidence that suggests you are awake. On the other hand, while you're awake, you should never see any real evidence that you are dreaming. So I think it's better to assume you're in a dream and look for evidence that you are in a dream. For example, if you're in a dream and you ask yourself, "where is the evidence that I'm awake?" you might do one RC, have that pass, and that would be evidence that you are awake. On the other hand, if in the same situation you ask yourself "where is the evidence that I'm dreaming?" you would do the one RC, have that pass, and then go on to your other RCs until one fails, and that would be the evidence that you are dreaming. You wouldn't be able to stop until either all of your RCs pass or one fails.

sometimes we just know with absolute certainty that we are indeed awake, for example if we have stayed awake and active for several hours and if everything has felt completely solid and logical that whole time, and in such cases it can feel a bit fruitless to ask yourself if you are dreaming, because you know that you you aren't dreaming at that point.
But that's an example of doing an RC. You don't "just know" that you're awake, you look back in your memories, realize that you've been awake and active for several hours doing logical things, and that's how you know you're not dreaming. Even if you don't explicitly ask yourself "am I dreaming", you're still answering the question.