Books and gouges are for studying and preparation. There are thousands of questions presented for training and learning purposes... and preparation for multiple choice tests... (You've got a 25 percent chance for each question that you don't know the answer). An oral evaluation is not a multiple choice test. It is a method for the examiners to determine your knowledge of the aircraft's systems and performance you are going to operate.
From the onset of your thread, Pilotbaba, it seemed you were requesting specific questions asked on the technical exam. This would not prepared you to study any of the systems on the 172, but rehearse for the oral exam. That my friend is cheating in my book.
You want to prepare for the exam??? study the manual. Draw the systems of a piece of paper. There is greater honor and respect knowing that you accomplished the task on your own, rather than cheating.