From the Publisher
-560 sample questions - 260 for the 13 areas covered in the exams, 200 additional practice questions, and 100 additional math questions
-Questions are organized by certification levels I, II, III, and IV, so you can just study those questions applicable to your certification level.
-Treatment operator questions and distribution operator questions are in separate sections. It's like getting two books in one.
-The answer is included under each question, along with the reference book, chapter, and page from which the answer was taken. Suggested topics of study for each examination area are also listed. Math questions include the solution.
-Separate ABC Formula/Conversion Tables for treatment and distribution.
-Separate ABC Examination Requirements for treatment and distribution.