This book is intended for students of the B' cycle of Technical Vocational Education and is divided into three parts.

The first part provides twelve (12) Assessment Criteria, which relate to each teaching unit in every chapter of the entire examined material. Each assessment criterion includes four (4) questions of increasing difficulty, in accordance with the spirit of the Panhellenic Exams.

The second part of the book contains the full answers to all the above questions. Naturally, the student reader should try their best to solve each problem on their own first and then consult the solution in the book.

The third part includes the Panhellenic Exam questions (with their answers) from the years 2000 to 2002.