What is the purpose of visual inspections after de-icing?

The purpose of visual inspections after de-icing is primarily to ensure that all ice or snow has been properly removed from aircraft surfaces. This is crucial because any remaining ice or snow can negatively impact the aircraft's aerodynamic performance, potentially leading to dangerous situations during takeoff and flight. These inspections help verify that the de-icing process was thorough and effective, safeguarding against any residual ice that could compromise safety.

Other options, while related to standard operating procedures around aircraft preparation, do not directly address the critical need for de-icing inspection. Checking fuel levels, evaluating the performance of the de-icing fluid, and preparing for takeoff are important tasks, but they serve different purposes and do not specifically focus on the immediate aftermath of the de-icing process. Visual inspections are specifically tailored to confirm the aircraft's surface condition post-de-icing, making option B the most suitable answer.