FAA AMT (Aviation Maintenance Technician) Airframe Practice Exam

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Question: 1 / 1030

What does the nominal rating of electrical switches refer to?

Voltage rating with the contacts open

Current rating with the contacts closed

The nominal rating of electrical switches refers to the maximum current that can safely pass through the switch when the contacts are closed. Option A is incorrect because it only refers to the voltage rating with the contacts open, not the current rating. Option C is incorrect because it does not specify the maximum capacity. Option D is incorrect because it only mentions the voltage rating at minimum load, not the current rating. It is important to pay attention to the wording of the question and make sure to choose the option that best matches the definition of the nominal rating.

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Current rating at maximum capacity

Voltage rating at minimum load

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