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.

Practice this question and more.

When inspecting a removable rigid fuel tank for leaks, what procedure should be followed?

Fill the tank with water
Pressurize the tank with air and brush with soapy water
Use a flame to detect leaks
Shake the tank to hear for leaks

The correct answer is: Pressurize the tank with air and brush with soapy water

When inspecting a removable rigid fuel tank for leaks, the correct procedure to follow is to pressurize the tank with air and then brush the tank with soapy water. This method is effective because if there is a leak, the pressurized air inside the tank will cause bubbles to form at the site of the leak when the soapy water is applied. This visual indication makes it easier to pinpoint the location of the leak and take appropriate corrective actions. Option A is incorrect because filling the tank with water is not the correct method for inspecting a fuel tank for leaks. Water can contaminate the fuel tank, leading to additional maintenance issues. Option C is incorrect because using a flame to detect leaks is extremely dangerous when inspecting fuel tanks. It can lead to catastrophic consequences such as fire or explosion. Option D is incorrect because shaking the tank to hear for leaks is not a reliable method for detecting leaks, especially in a rigid fuel tank. The pressurization and soapy water method are more appropriate for this purpose.