What is the formula for A.P.I. degrees used in gravity tests for fuels?
A. A.P.I. degrees = (frac{141.5}{specific , gravity , of , oil , at , 60°F} )-131.5
B. A.P.I. degrees = (frac{131.5}{specific , gravity , of , oil , at , 60°F} )-141.5
C. A.P.I. degrees = (frac{Specific , gravity , of , oil , at , 60°F}{141.5} )-131.5
D. A.P.I. degrees = (frac{Specific , gravity , of , oil , at , 60°F}{131.5} )-141.5
Answer:A
What is the formula for A.P.I. degrees used in gravity tests for fuels?
A. A.P.I. degrees = (frac{141.5}{specific , gravity , of , oil , at , 60°F} )-131.5 B. A.P.I. degrees = (frac{131.5}{specific , gravity , of , oil , at , 60°F} )-141.5 C. A.P.I. degrees = (frac{Specific , gravity , of , oil , at , 60°F}{141.5} )-131.5 D. A.P.I. degrees = (frac{Specific , gravity , of , oil , at , 60°F}{131.5} )-141.5
Explanation: The gravity of a fuel or an oil may be expressed as specific gravity or as an API gravity, a scale devised by American Petroleum Institute. The specific gravity of a liquid is the ratio of its weight to the weight of an equal volume of water at 60°F.