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Ferrum content accounts for steel is ( ).

A. 90%
B. 95%
C. 99%
D. 100%

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Welded I-section beam webs are provided with transverse stiffeners, the purpose is ( ).

A. Improve the bending strength of the beam
B. Improve the shear strength of the beam
C. Improve the overall stability of the beam
D. Improving the local stability of the beam

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Age hardening can increase steel ( ).

A. Weldability
B. Strength
C. Toughness
D. Plasticity

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When calculating ( ) of a beam, the geometric parameters of the net section are selected.

A. Normal stress
B. Shear stress
C. Overall stability
D. Local stability

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The bearing capacity of axially loaded compression member in the steel structure is generally determined by ()

A. strength
B. stiffness
C. section
D. stability

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Ferrum content accounts for steel is ( ).

A. 90% B. 95% C. 99% D. 100%

Welded I-section beam webs are provided with transverse stiffeners, the purpose is ( ).

Age hardening can increase steel ( ).

When calculating ( ) of a beam, the geometric parameters of the net section are selected.

The bearing capacity of axially loaded compression member in the steel structure is generally determined by ()

A. 90%
B. 95%
C. 99%
D. 100%