The standard weight of steel per cubic foot is shown as about

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Multiple Choice

The standard weight of steel per cubic foot is shown as about

Explanation:
Weight per unit volume comes from density. For steel, the typical density is about 7,850 kilograms per cubic meter. Converting that to pounds per cubic foot gives roughly 490 lb/ft^3 (7,850 kg/m^3 × 2.2046 lb/kg ÷ 35.3147 ft^3/m^3 ≈ 490). In practice, charts may round this to about 490 or 500 for convenience, and some rough references list around 480. So the standard value used is about 490 pounds per cubic foot, with 480 listed in some rough approximations.

Weight per unit volume comes from density. For steel, the typical density is about 7,850 kilograms per cubic meter. Converting that to pounds per cubic foot gives roughly 490 lb/ft^3 (7,850 kg/m^3 × 2.2046 lb/kg ÷ 35.3147 ft^3/m^3 ≈ 490). In practice, charts may round this to about 490 or 500 for convenience, and some rough references list around 480. So the standard value used is about 490 pounds per cubic foot, with 480 listed in some rough approximations.

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