Why is the capacitance fluid quantity indicating system more accurate in measuring fuel level than a mechanical type?

The answer concerning the capacitance fluid quantity indicating system being more accurate in measuring fuel level relates to how capacitance technology operates. Unlike mechanical systems that gauge fuel levels by measuring physical movement or position (such as a float rising and falling), capacitance systems determine the fluid level based on changes in capacitance, which is influenced by the dielectric constant of the fuel.

This method can provide more precise measurements because it focuses on the electrical properties of the fuel rather than its physical displacement. By assessing the capacitance, the system is not directly impacted by the buoyancy or movement of a float, which can introduce error in readings due to mechanical wear or improper calibration.

While the other options may present benefits in different contexts, they do not directly explain why capacitance systems offer superior accuracy. For example, energy efficiency, temperature effects, and operational resilience are important attributes but they do not address the core functional aspect of measuring fuel levels with high precision. The capacitance measurement's reliance on the dielectric properties rather than physical movement is key to its accuracy, allowing for a more reliable reading regardless of external factors.