How should you inspect the emergency exit doors?

Inspecting the emergency exit doors is a critical aspect of vehicle safety and preparedness for emergencies. Testing their operation ensures they can be opened easily in case of an emergency, providing a clear path for evacuation. Furthermore, ensuring that they close securely is essential to maintain the integrity of the vehicle and prevent any potential hazards during operation.

The other options lack the necessary thoroughness required for emergency exits. Merely checking for signs of malfunction does not proactively ensure the doors are in working order before an emergency arises. Cleaning the doors is important for visibility and maintenance, but it doesn’t address their operational readiness. Checking for window visibility does not pertain specifically to the functionality and safety of the emergency exit doors themselves. Therefore, the best approach is to actively test and ensure these doors are fully operational and secure, which aligns with the proactive safety measures necessary for safe transportation.