What is a steel girder formed by hot-rolling?

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Multiple Choice

What is a steel girder formed by hot-rolling?

Explanation:
The concept being tested is how steel girders are produced and which term matches hot-rolled shapes. A steel girder formed by hot-rolling is a rolled beam. Hot-rolling produces standard cross-sections—like I-beams or H-beams—by passing hot steel through rolling stands, giving strong, uniform shapes ready for use as girders. Welded girders are built up from plates or angles welded together, not formed in a single rolling process. Cast girders are made by pouring molten steel into a mold to create one piece, rather than shaping through rolling. Cold-formed beams are shaped at room temperature from sheet or thin-walled stock and are generally lighter and used for different applications than large structural girders.

The concept being tested is how steel girders are produced and which term matches hot-rolled shapes. A steel girder formed by hot-rolling is a rolled beam. Hot-rolling produces standard cross-sections—like I-beams or H-beams—by passing hot steel through rolling stands, giving strong, uniform shapes ready for use as girders.

Welded girders are built up from plates or angles welded together, not formed in a single rolling process. Cast girders are made by pouring molten steel into a mold to create one piece, rather than shaping through rolling. Cold-formed beams are shaped at room temperature from sheet or thin-walled stock and are generally lighter and used for different applications than large structural girders.

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