The maximum slenderness ratio of a steel column, the design of which is governed by wind or seismic forces is________________?

A. only on the ultimate stress of the material
B. only on the yield stress of the material
C. only on the geometry of the section
D. both on the yield stress and ultimate stress of material

A. 100
B. 120
C. 145
D. 180

A. two times the weld size
B. four times the weld size
C. six times the weld size
D. weld size

A. 1.18
B. 1.414
C. 1.67
D. 1.81

A. equilibrium and mechanism conditions
B. equilibrium and plastic moment conditions
C. mechanism and plastic moment conditions
D. equilibrium condition only

A. zero
B. 10
C. 100
D. infinity