文档介绍：土建考试题库及答案(二)
of rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilities
of rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilities
of rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilities
土建考试题库及答案（二）
1、钢筋混凝土及预应力混凝土结持中的普通钢筋，不应采用下列何种钢筋?
(A) HPB500 级钢筋
(C) HRB400级钢筋
(B) HRB335级钢筋
(D)热处理钢筋
2、当建筑采用混凝土结构时，下列材料选择中何项错误?
(A) 钢筋混凝土结构的混凝土的强度等级不应低于 C20
(B) 当承受重复荷载时，混凝土的强度等级不得低于 C15
(C) 预应力混凝土结构的混凝土强度 等级不应低于C40
(D) 当采用 HRB335 级钢筋时，混凝土的强度等级不应低于 C20
3、钢筋混凝土构件中配有不同种类的钢筋时，其钢筋强度取值，以下叙述何为正确?
(A) 各种钢筋均取其中最低等级的钢筋强度
(B) 每种钢筋根据其受力情况应采用各自的强度
of rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilities
of rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilities
of rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilities
(C) 取各种钢筋强度的平均值
( D) 取其中最高等级的钢筋强度
4、某批混凝土经抽样测定，其强度等级为C30，这意味着该批混凝土属于下列何种情况?
(A) 立方体抗压强度达到 3030N/mm2的保证率为 95%
(B) 立方体抗压强度的平均值为30N/mm2
(C) 立方体抗压强度标准值达到 30N/mm2的保证率为 95%
( D) 立方体抗压强度设计值达到 30N/mm2的保证率为 95%
5、与强度等级较低的混凝土相比，C50及其以上的混凝土具有如下哪个特点?
( A) 强度提高，破坏时混凝土表现出明显的脆性
(B) 强度提高，混凝土塑性性能有所改善
(C) 强度提高，混凝土塑性性能