You PhotoRead the questions so the nonconscious mind has a change to process them and start pulling up the answers. You'll rhythmicly peruse them when you start answering them.
What you do is PhotoRead all the test pages first. If the questions happen to be on a separate sheet take the time to PhotoRead them too. (Actually, PhotoRead them first if they are separate).
You don't need to focus on whether it made any difference. During a test you have other things to consider that are more important.
Alex