What is the purpose of Slot 2 of this tachograph?

Your answer is correct. Slot 2 of the tachograph is specifically designed for inserting the driver card of the second driver. This is important in vehicles where two drivers share driving duties, such as long-distance trucks or buses. The tachograph records the driving times, breaks, and rest periods of both drivers separately using their respective cards, ensuring compliance with legal regulations on driving hours and rest periods. Slots 1 and 2 correspond to driver 1 and driver 2 respectively, while other options like police access or replacement cards are not the purpose of slot 2. Understanding this helps in managing and checking driving times accurately.