Question 1483 Deck General

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What do the designations A, B, C, D, and E refer to in grades of cargo?

A flash point range and Reid vapor pressure index of petroleum products
B degrees of quality of petroleum products
C pour point, color, and viscosity index of petroleum products
D grades of crude oil
AI Explanation

The correct answer is A) flash point range and Reid vapor pressure index of petroleum products. The designations A, B, C, D, and E refer to the different grades of petroleum products based on their flash point range and Reid vapor pressure index. This classification system is used to ensure the safe handling and transportation of these products, as the flash point and vapor pressure are key factors in determining the fire and explosion hazards associated with each grade. The other options are incorrect because they do not accurately describe the meaning of these designations in the context of petroleum product grades. Grades are not based on degrees of quality, pour point, color, viscosity index, or grades of crude oil.

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