This is good advice for the LSAT too, and baked into LSAT Demon's app. If you can predict an answer before looking at the choices, you're probably on the right track.
Yes but if you don’t know the answer by the time the light goes on (the question is finished read), you will never get in. And if you buzz in without knowing the answer you will lose points. So you have to know the answer before the light goes , then be ready to buzz as soon as eligible. Jeopardy is a good example.