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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Is this the hole question
Answer:
C
Explanation:
It is a shrine, for the Buddhist religion
Answer: An effective price ceiling is a price imposed by the government below the equilibrium price.
Explanation:
Price ceiling is a price control that is imposed by the government to curtail how high producers or suppliers charge price for a commodity or service. Price ceiling is used by the government to protect consumers from purchasing very high commodities. The very high prices of the good can be as a result of inflation, monopoly or investment bubble
For price ceiling to be effective, the price set must be below the equilibrium price (price set by the forces of demand and supply).