Is this a good study book with accurate tests?

I got this book from a library and I have been using it for practice tests and refreshing some information. I was taking the 150 question test in the back and a lot of the questions seemed really easy and common sense almost. I've also noticed some of the information in here is different from what i was taught or what I learned on an EMT-B prep app.

I got this book from a library and I have been using it for practice tests and refreshing some information. I was taking the 150 question test in the back and a lot of the questions seemed really easy and common sense almost. I've also noticed some of the information in here is different from what i was taught or what I learned on an EMT-B prep app.