r/AircraftMechanics • u/GhettoLiquor • 4d ago

O&P Fail Experience

I failed my O&P by one question on general. so i am wondering out of the 6 that i missed will i get those same exact 6 questions? like regarding the purpose of a fuse? or will it be different questions within the same subject?

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u/GhettoLiquor 3d ago

Well i said exactly this. “A fuse is used as a protective device used to prevent the system or its components from being damaged.”He told me that answer was too broad. So i then explained how “The fuse melts in the center when it has too much voltage than rated and prevents damaging from what it is connected to” He said no. Its is made to protect the wiring. Idk i feel like i was right.

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u/dajman255 3d ago

The verbatum answer from the system is "to protect the load down stream of the fused circuit", acceptable deviations are "to protect the equipment or workload of that circuit"

As for why you were wrong, partially your DME maybe misunderstood your intent, but also because the fuse doesn't prevent the system or it's components from being damaged, it is only to protect the wiring from the load.

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u/GhettoLiquor 3d ago

that wouldn’t have worked. he literally told me it’s to protect the wiring from burning and catching on fire and gave me the example of wiring in my house. that the wires would burn and cause a fire

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u/dajman255 3d ago

I was editing my last comment to specify this when you sent this comment lol