Answer:
flapper valves.
Explanation:
According to my research on Aircraft Fuel Tanks, I can say that based on the information provided within the question many fuel tanks incorporate flapper valves. Like mentioned in the question these are implemented to prevent fuel from flowing away from the boost pump or tank outlet. This can happen when the aircraft is experiencing high gravity force/pressure.
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The correct answer is letter a. true. The poet Beowulf made
may references with regards to the providence of God and as well God as the
creator, because during the time Beowulf was being written, numerous
Anglo-Saxons had converted to Christianity, which is why its story leads to a
Pagan-Saxon past as well.
