Using these "past papers" is the best way to get used to the actual exam layout and the quality of the listening audio.
Detailed descriptions of the B1 level tests, including a syllabus and official advice. Quaderni CILS B1. Livello UNO - B1
Are you taking the exam or the B1 Cittadinanza version for your application? CILS B1 exam structure and requirements? Using these "past papers" is the best way
At the B1 level, you must be able to handle "threshold" tasks like writing formal emails to local authorities or describing personal experiences (around 100 words). The Quaderni provide the exact prompts needed to practice these requirements. Study Tip: Standard vs. Citizenship CILS B1 exam structure and requirements
Be aware that there are two versions of the B1 exam. The has five sections and allows you to retake failed parts individually. The B1 Cittadinanza (for citizenship) is shorter with only four sections, but if you fail one part, you must generally retake the entire exam.
For more information, you can visit the Official University of Siena CILS page to download free sample tests or purchase the physical Quaderni from ORNIMI editions .