EASA Module 7 Practice Questions - EASA Part-66 Module 07 - Maintenance Practices Exam

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When servicing an aircraft oxygen system, why is it critical that no oil, grease, or hydrocarbon contamination contacts the components?

Oil residue absorbs oxygen and reduces the available flow rate to the masks Hydrocarbons in contact with high-pressure oxygen can ignite or react violently, causing fire or explosion Grease increases the dielectric strength of the line and causes static discharge Oil causes the oxygen regulator diaphragm to swell and stick open

Correct Answer:

Hydrocarbons in contact with high-pressure oxygen can ignite or react violently, causing fire or explosion

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