1试题1一、单项选择题(1~9题)1.C2.D3.D、B4.B5.D6.A7.C8.C、C9.D、D10.B、C11.A二、填空题1.装配前不选择、装配过程中不修配、装配后满足使用要求.2.公比为q=√10的十进等比数列.33..单单峰性、对称性、相消性、有界性5.实际尺寸–基本尺寸极限尺寸–基本尺寸6.相同、固定、浮动7.基轴制键宽b_15.高三.标注和改错题10.Φ40-0.009-0.034孔的表面粗糙度Rz的上限值12.5μm。2.Φ40-0.009-0.034Φ45-0.009-0.034Φ20+0.0210○E0.01A-BABØ50k6◎ø0.02AB2×Ø50k6○0.012×Ø50k6Ø54r60.02A-B⊥0.01AØ50k6⊥0.01B0.01A-BAB0.01A-BAABBØ50k6◎ø0.02AB2×Ø50k6◎ø0.02AB◎ø0.02AB2×Ø50k6○0.012×Ø50k6○0.01○0.01○0.012×Ø50k6Ø54r60.02A-BØ54r60.02A-B⊥0.01A⊥0.01AØ50k6⊥0.01B⊥0.01B⊥0.01B1.◎Φ0.02A—Φ0.01—0.02○0.02—0.015↗0.02AA↗↗0.02BB3.2maxRz6.32四、1.跳动按特定的测量方法定义,即跳动f由特定的测量方法测量,其余均按几何概念定义,既其形位误差由最小区域的大小确定,不限测量方法,只要确定了形位误差由最小区域,即可获得形位误差值f3.方案(a)为最佳方案,因为方案(a)为便于测量,且测量成本低试题2四、2.获得齿轮副侧隙的方法有:调整齿轮副中心距、削薄齿厚。一般采用的方法是削薄齿厚。试题3二、4.如图3.2所示,被测要素采用的公差原则是_最大实体要求_,最大实体尺寸是_60__mm,最小实体尺寸是_60.19_mm,最大实体实效尺寸是_59.95__mm。垂直度公差给定值是_0.05_mm,垂直度公差最大补偿值是0.05mm。设孔的横截面形状正确,当孔实际尺寸处处都为φ60mm时,垂直度公差允许值是+_0.05_mm,当孔实际尺寸处处都为φ60.10mm时,垂直度公差允许值是0.15__mm。试题4二、2.0.002.-0.1~+0.10~1806.+14,-5试题5三、2.0.0150.0150.02A-B0.02Ø20E0-0.013Ø20E0-0.013AB2×ø200.0100-0.0130.0250.012A-B0.0150.0150.02A-B0.0150.0150.02A-B0.02A-B0.020.02Ø20E0-0.013Ø20E0-0.013Ø20E0-0.013Ø20E0-0.013AABB2×ø200.0102×ø200.0102×ø200.0100.0100-0.0130.0250.012A-B0.0250.012A-B0.0150.0150.02A-B0.02Ø20E0-0.013Ø20E0-0.013AB2×ø200.0100-0.0130.0250.012A-B0.0150.0150.02A-B0.0150.0150.02A-B0.02A-B0.020.02Ø20E0-0.013Ø20E0-0.013Ø20E0-0.013Ø20E0-0.013AABB2×ø200.0102×ø200.0102×ø200.0100.0100-0.0130.0250.012A-B0.0250.012A-B