题目内容

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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The performance grades of Grade A or B normal bolts, grade C normal bolts, anchor bolts and high strength bolts shall be marked respectively as ( ).(There is only one correct answer to this question)

A. 5.6 or 8.8; 4.6 or 4.8; Q235 or Q345; 8.8 or 10.9
B. Q235 or Q345; Q235; Q235 or Q345; 20MnTiB
C. Q235; Q235 or Q345; 40B
D. 5.6; 4.6; 4.6 or 5.6; 10.9

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In steel structure connection, which of the following connection methods will not weaken the cross section of members? ( )(There is only one correct answer to this question)

A. Welding connection
B. Normal bolt connection
C. High strength bolt connection
D. Rivet connection

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When we calculate the standard value of snow loads, the unit of the loads we use is ( ). (There is only one correct answer to this question)

A. kN/m3
B. kN/m2
C. kN/m
D. kN

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Which of the following members or systems are load-bearing components? (There is more than one correct answer to this question)

A. Beams
B. Columns
C. Portal Frame
D. Shear Wall

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