FAA AMT Airframe Practice Exam 2025 – Complete Exam Prep Guide

Question: 1 / 1030

A universal propeller protractor used to measure the degrees of aileron travel should be zeroed:

with the aileron in the DOWN position.

with the aileron in the UP position.

with the aileron in the NEUTRAL position.

A universal propeller protractor should be zeroed with the aileron in the NEUTRAL position because this is the starting position from which the angle of aileron travel is measured. Zeroing the protractor with the aileron in any other position could lead to inaccurate measurements when checking the degrees of aileron movement.

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at any position as it does not matter.

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