FAA AMT Airframe Test 2026 – 400 Free Practice Questions to Pass the Exam

Question: 1 / 1030

Which of the following is a major advantage of alternating current (AC) over direct current (DC)?

It is cheaper to produce

Its current and voltage can easily be increased or decreased by means of a transformer

One major advantage of alternating current (AC) over direct current (DC) is that its current and voltage can easily be increased or decreased by means of a transformer. This is a key feature of AC power systems, as transformers allow for efficient transmission of electricity over long distances at different voltage levels, which is essential in power distribution networks. AC power lends itself well to this method due to the ability to change voltage levels through transformers without significant loss in power transfer efficiency.

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It has a simpler design

It is safer to use in homes

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