Engine: Expired / Engineering Safety

1. A "A" class bulkheads must not allow flame or smoke passage for 15 minutes when subjected to a fire test
2. B "A" class bulkheads must not allow flame or smoke passage for 60 minutes when subjected to a fire test
3. C "A" class bulkheads must not allow flame or smoke passage for 120 minutes when subjected to a fire test
4. D "A" class bulkheads must not allow flame or smoke passage for 30 minutes when subjected to a fire test

Tip: press A-D to answer