General Authority of Civil Aviation (GACA) Aeronautical Information Publication (AIP) Practice Exam

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How far can the tiller turn in either direction?

50º
60º
70º
80º

The correct answer is: 70º

The correct answer, 70º, is significant because it reflects a typical specification for aircraft tiller systems, which are designed to allow pilots precise control over the nose wheel steering during ground operations. This range enables pilots to maneuver the aircraft effectively while taxiing, allowing for safe navigation around airport infrastructure and during tight turns. Many aircraft utilize a maximum tiller turn angle around the range of 70º to provide operational efficiency and avoid excessive wear on the nose gear. This specification helps ensure that the aircraft responds accurately to pilot inputs, enhancing safety and control. Other options, while plausible, do not match the standard specifications found in many aircraft manuals, making 70º the widely accepted answer in this context. Additionally, higher or lower degrees of turn may limit the aircraft's maneuverability or complicate ground handling, underscoring the importance of this precise limit.