试题与答案

胶带机通廊悬挂在厂房框架上,通廊宽8m,两侧为走道,中间为卸料和布料设备,结构布置如

题型:单项选择题 案例分析题

题目:

胶带机通廊悬挂在厂房框架上,通廊宽8m,两侧为走道,中间为卸料和布料设备,结构布置如图5-6所示。通廊结构采用Q235B钢,手工焊接使用E43型电焊条,要求焊缝质量等级为二级。

 

 

吊杆(以)与横梁(B1)的连接如图5-7所示,吊杆与节点板连接的角焊hf=6mm,吊杆的轴心拉力设计值N=520kN。试问,角焊缝的实际长度l1(mm),应与下列何项数值最为接近()?  

A.220

B.280

C.350

D.400

答案:

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参考答案:对

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题型:综合题

(35分)今年中 * * 党成立90周年。阅读材料,回答问题。

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——《对中共十一届三中全会的再思考》

材料二  “……看一个政体是不是民主政体,不能看是不是具备了某些形式,关键是要看它是否建立在法治之上,能否建构一种科学的监督机制,能否把民主与集中合理的结合起来……”              

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