AMP - Aviation Maintenance Technician Powerplant Practice Exam

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Question: 1 / 400

If fuel is found running from the carburetor with the engine not running, the likely cause is?

float needle valve is not seated properly.

If fuel is running from the carburetor with the engine not running, this could indicate an issue with the float needle valve not being properly seated. This can lead to excess fuel flowing into the carburetor and potentially causing leaks. Option B is incorrect because a float level that is adjusted too low typically results in a lean engine running condition, not fuel leakage. Option C is incorrect because a clogged main air bleed would affect the air-fuel ratio, not necessarily cause fuel to leak from the carburetor. Option D is incorrect because a fuel pump malfunction would most likely result in a lack of fuel reaching the carburetor, rather than excess fuel leaking from the carburetor.

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float level is adjusted too low.

main air bleed is clogged.

fuel pump malfunction

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