单项选择题
A.10MPa B.5MPa C.1MPa D.0.5MPa
A.168 B.182 C.196 D.210
A.最大值,最小值 B.最小值,最大值 C.最大值,最大值 D.最小值,最小值
A.抗拉 B.抗弯 C.塑性变形 D.韧性变形
A.625MPa,625MPa B.630MPa,625MPa C.625MPa,615MPa D.630MPa,630MPa
A.410MPa,400MPa B.405MPa,395MPa C.415MPa,400MPa D.410MPa,395MPa
A.双倍复检 B.合格 C.不合格 D.无法判定
A.520MPa,545MPa,555MPa B.525MPa,545MPa,550MPa C.520MPa,520MPa,550MPa D.520MPa,545MPa,550MPa
A.50mm B.55mm C.60mm D.65mm
A.抗滑性能试验 B.抗破坏性能试验 C.扭转刚度性能试验 D.对接扣件抗拉性能试验
A.套筒挤压接头 B.锥螺纹接头 C.滚轧直螺纹接头 D.水泥灌浆充填接头