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When the upper chord of a simply supported steel roof truss is subjected to node load, the upper chord can be simplified as ( ).(There is only one correct answer to this question)

Axial tension member
B. Axial compression member
Compression and bending member
D. Flexural member

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The bearing capacity of axially compressed members of steel structures is generally determined by ( ).(There is only one correct answer to this question)

A. Intensity
B. Stiffness
C. Section shape
D. Stability

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Which of the following types of members may be simplified as axially loaded members? ( )(There is only one correct answer to this question)

A. Beam in frame
B. Shear wall
C. Members in steel truss
D. Column in frame

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In the elastic stage, the stress distribution along the length direction of the side fillet weld is ( ).(There is only one correct answer to this question)

A. Uniform distribution
B. large at one end and small at one end
C. Big at both ends, small in the middle
D. small at both ends, big in the middle

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Which of the following statements about butt weld is wrong? ( )(There is only one correct answer to this question)

A. When the oblique weld is used, the grade III weld can achieve the same strength as the base steel
B. The strength design value of grade I and II weld are the same as that of base steel
C. The strength of the grade I and II welds can meet the requirements without calculation
D. The stress of butt weld is like that of base steel

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When the upper chord of a simply supported steel roof truss is subjected to node load, the upper chord can be simplified as ( ).(There is only one correct answer to this question)

Axial tension member B. Axial compression member Compression and bending member D. Flexural member

The bearing capacity of axially compressed members of steel structures is generally determined by ( ).(There is only one correct answer to this question)

Which of the following types of members may be simplified as axially loaded members? ( )(There is only one correct answer to this question)

In the elastic stage, the stress distribution along the length direction of the side fillet weld is ( ).(There is only one correct answer to this question)

Which of the following statements about butt weld is wrong? ( )(There is only one correct answer to this question)

Axial tension member
B. Axial compression member
Compression and bending member
D. Flexural member