This book contains 365 questions that should be studied and researched until one feels completely satisfied that they understand the answer. If you understand you will retain and be able to recall the answer during an exam. There are no short cuts to education, it will continue throughout your career in the electrical industry. As Will Rogers stated, "You can't come back from someplace you've never been." This book will take you there, it's up to you to understand it. It may require additional study of other books. But this book will let you know where you stand with the cognitive part of the exam.