FAA Powerplant Written Practice Test

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Prepare for the FAA Powerplant Written Test. Study with flashcards and multiple choice questions, each featuring hints and explanations. Ace your exam with confidence!

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How should terminal lugs be installed to ensure safety?

They should be loosely fitted to allow for movement
Installed to lock against movement in the direction of loosening
They can be installed at any angle
Installed without regard to their movement

The correct answer is: Installed to lock against movement in the direction of loosening

Terminal lugs should be installed to lock against movement in the direction of loosening to ensure safety and reliability in electrical connections. This method prevents the lugs from vibrating loose due to the forces experienced during operation, such as engine vibrations or fluctuations in electrical load. By securing the lugs in such a way, you minimize the risk of electrical failure, potential shorts, and hazards associated with loose connections. Proper installation techniques, including the direction of the lug and the use of appropriate torque specifications, are critical in maintaining a secure and durable connection. When terminal lugs are unable to move or back out, it ensures a consistent electrical contact over time, reducing maintenance requirements and enhancing overall system safety.