How many water sumps are installed in the aircraft?

The correct answer is based on the aircraft's design and configuration, specifically detailing the number of water sumps present. Water sumps are critical components installed in aircraft to collect and manage any accumulation of water that can gather in various sections of the fuel system.

In the context of this question, the presence of six water sumps indicates a design decision that allows for effective drainage and maintenance of fuel quality. This number reflects the aircraft's functionality and safety requirements, ensuring that any water present can be efficiently removed during pre-flight checks and maintenance procedures.

To understand the implications of having six instead of fewer or more water sumps, it is important to consider how such a design caters to the demands of aircraft operation in various environments, ensuring that moisture contamination in fuel systems is minimized. Having an adequate number of sumps allows for better reliability and fuel management, which is essential for safe flight operations.