The owner of the gas station wants to bury the gasoline so deep that no vacuum pump will be able to extract it. He has hired a general contractor to dig the holes for the tanks. What is the minimum gasoline surface depth h, needed to prevent siphoning by any pump? Assume the specific gravity of gasoline is 0.712 and that the tank is not sealed. (You can ignore the drop rate of the gasoline level inside of the tank.) h2 = 47.6 ft The gas station owner balks at the contractor's estimate. He neither has the funds nor approval from the city to dig that deeply. However, the contractor tels him that the best a thief could hope to have at his disposal is a 194-mbar vacuum pump. Anything better would be enormously expensive. Given this information, how deep h2 would the gasoline have to sit below the surface to keep it safe from thieves?

University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter14: Fluid Mechanics
Section: Chapter Questions
Problem 115AP: A sump pump (used to drain water from be basement of houses built below the water table) is draining...
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The owner of the gas station wants to bury the gasoline so deep that no vacuum pump will be able to extract it. He has hired a
general contractor to dig the holes for the tanks. What is the minimum gasoline surface depth h2 needed to prevent siphoning by
any pump?
Assume the specific gravity of gasoline is 0.712 and that the tank is not sealed. (You can ignore the drop rate of the gasoline
level inside of the tank.)
h2
47.6
ft
The gas station owner balks at the contractor's estimate. He neither has the funds nor approval from the city to dig that deeply.
However, the contractor tels him that the best a thief could hope to have at his disposal is a 194-mbar vacuum pump. Anything
better would be enormously expensive. Given this information, how deep h2 would the gasoline have to sit below the surface to
keep it safe from thieves?
h2
ft
Transcribed Image Text:The owner of the gas station wants to bury the gasoline so deep that no vacuum pump will be able to extract it. He has hired a general contractor to dig the holes for the tanks. What is the minimum gasoline surface depth h2 needed to prevent siphoning by any pump? Assume the specific gravity of gasoline is 0.712 and that the tank is not sealed. (You can ignore the drop rate of the gasoline level inside of the tank.) h2 47.6 ft The gas station owner balks at the contractor's estimate. He neither has the funds nor approval from the city to dig that deeply. However, the contractor tels him that the best a thief could hope to have at his disposal is a 194-mbar vacuum pump. Anything better would be enormously expensive. Given this information, how deep h2 would the gasoline have to sit below the surface to keep it safe from thieves? h2 ft
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