Top critical review
Worth buying but only for supplementary study
Reviewed in the United States on November 23, 2019
The author or authors behind the six practice tests in the book (Fifth Edition) will need to do more research.
The actual ASE A2 exam that I took (and passed) contained in-depth questions about various electrical components (EPC, for example), lots of questions involving wiring diagrams, and apply charts. The questions involving the wiring diagrams presume you have a working knowledge of electrical. There is a lot of intersection between A2 and A6 (electrical).
The practice exams in the Delmar are easy, questions are basic, and you don't get a lot of apply-chart questions and wiring questions. Questions in the Delmar have a lot of intersection of topics between A2 and easy A4 (suspension). There may be too many questions about throttle cable valves, governors or modulators, which are outdated after TPS's, VSS's, etc. There were not enough questions about component failures, restricted transmission filters, and the like.
If I had only used the Delmar book as a study guide I would have failed. But that said I'm not an idiot which is why my study comprised older Delmar books (which are better but still outdated, of course) and lots of other sources available on the net anyway.
Three stars but not lower than that because any practice exam is valuable to refer to when preparing for an exam, and this book has six.
BTW: The actual ASE A2 exam is comprised of 60 questions, you are scored off a base of 50, and the passing score is 33/50, which is the lowest I've seen for an ASE exam. Most of them require at least a score of 70% to pass.
I have used Delmar's books to pass other ASE exams such as A6 and A8, and those books have been quite useful. But this one for the A2, turned out to be something else. Expect the actual A2 exam to be a lot, LOT harder.