FAA AMT Airframe Practice Exam 2026 – All-in-One Study Guide to Master Aviation Maintenance Technician Certification!

Question: 1 / 1030

One advantage of using AC electrical power in aircraft over DC is

It is cheaper to produce

Greater ease in stepping the voltage up or down

AC electrical power is commonly used in aircraft over DC due to its advantage of being easier to step the voltage up or down. This is important because various aircraft systems require different voltage levels to operate efficiently. By utilizing AC power and transformers, the voltage can be easily adjusted to meet the specific requirements of each system without the need for bulky and heavy voltage regulators. This flexibility in voltage regulation makes AC power the preferred choice in aircraft systems.

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It is safer to use

It provides a constant voltage

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