FAA AMT (Aviation Maintenance Technician) Airframe Practice Exam

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Prepare for the FAA AMT Airframe Exam with our comprehensive quiz. This resource offers multiple-choice questions designed to enhance your knowledge and understanding of aviation maintenance concepts.

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

How should a rheostat be connected to a light circuit to control light intensity?

In parallel with the light
Directly to the power source
In series with the light
Through a transformer

The correct answer is: In series with the light

A rheostat should be connected in series with the light in a circuit to control the light intensity. By placing the rheostat in series, the current flowing through the circuit must pass through the rheostat, allowing it to regulate the flow of electricity and thus control the light's intensity. Connecting the rheostat in parallel with the light (Choice A) would not allow for proper control of the light intensity as the current could bypass the rheostat. Directly connecting the rheostat to the power source (Choice B) would not effectively regulate the current flowing through the light, impacting the ability to control the light intensity. Connecting the rheostat through a transformer (Choice D) is unnecessary for adjusting the light intensity and would add complexity to the circuit without providing any additional benefit in controlling the light.