API gravity measures which of the following?

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Multiple Choice

API gravity measures which of the following?

Explanation:
API gravity measures how dense a petroleum liquid is relative to water. It tells you whether the oil is light or heavy: higher API gravity means lighter oil with lower density than water, while lower API gravity means heavier oil with higher density. It's calculated from the oil’s specific gravity at 60°F, using API gravity = (141.5 / SG60) − 131.5. This concept focuses on density, not viscosity, color, or flammability, which is why it’s used to classify crude oils and predict processing behavior.

API gravity measures how dense a petroleum liquid is relative to water. It tells you whether the oil is light or heavy: higher API gravity means lighter oil with lower density than water, while lower API gravity means heavier oil with higher density. It's calculated from the oil’s specific gravity at 60°F, using API gravity = (141.5 / SG60) − 131.5. This concept focuses on density, not viscosity, color, or flammability, which is why it’s used to classify crude oils and predict processing behavior.

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