成考院校在线答案
- 2022-09-12 [判断] <p style="margin:0cm;margin-bottom:.0001pt;line-height:20.0pt;mso-line-height-rule: exactly">18、<span style="font-size:10.5pt;color:windowtext">铰孔可以提高孔的尺寸精度、减小孔表面粗糙度，但不能对原孔的偏斜进行修正。</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;color:windowtext"> <o:p></o:p></span></p>
- 2022-09-12 [单选] <p class="MsoNormal" style="mso-pagination:widow-orphan">39、<span style="mso-bidi-font-size:10.5pt;font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";color:windowtext">工件的装夹是指</span><span style="mso-bidi-font-size:10.5pt;color:windowtext"> <span lang="EN-US">( <span style="mso-spacerun:yes"> </span>)<span style="mso-spacerun:yes"> </span></span></span><span style="mso-bidi-font-size:10.5pt;font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";color:windowtext">过程的总和。</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;color:windowtext;mso-font-kerning: 0pt"> <o:p></o:p></span></p>
- 2022-09-12 [单选] <p class="MsoNormal" style="margin-top:7.8pt;mso-para-margin-top:.5gd; line-height:20.0pt;mso-line-height-rule:exactly">31、<span style="mso-bidi-font-size: 10.5pt">定位误差是由于工件在夹具或机床上定位不准确而引起的加工误差｡当工件的工序基准与<span lang="EN-US">(<span style="mso-spacerun:yes"> </span>)</span>不重合时<span lang="EN-US">,</span>将会产生定位误差｡<span lang="EN-US"> <o:p></o:p></span></span></p>
- 2022-09-12 [单选] <p class="MsoNormal" style="margin-top:7.8pt;mso-para-margin-top:.5gd; line-height:20.0pt;mso-line-height-rule:exactly">23、<span style="mso-bidi-font-size: 10.5pt">在大批量生产条件下<span lang="EN-US">,</span>若装配精度要求高､参入装配的组成件较少<span lang="EN-US">,</span>此时应选择<span lang="EN-US">(<span style="mso-spacerun:yes"> </span>)</span>装配方法｡<span lang="EN-US"> <o:p></o:p></span></span></p>
- 2022-09-12 [单选] <p class="MsoNormal" style="margin-top:7.8pt;mso-para-margin-top:.5gd; line-height:20.0pt;mso-line-height-rule:exactly">40、<span style="mso-bidi-font-size: 10.5pt">采用分组选择装配法以保证产品的装配精度｡故在装配过程中应选择<span lang="EN-US">(<span style="mso-spacerun:yes"> </span>)</span>组的零件进行装配<span lang="EN-US">,</span>以保证每组的零件装配后都能到达装配精度｡<span lang="EN-US"> <o:p></o:p></span></span></p>
- 2022-09-12 [单选] <p class="MsoNormal" style="mso-pagination:widow-orphan">32、<span style="mso-bidi-font-size:10.5pt;font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";color:windowtext">选择定位基准时，应遵循（</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;color:windowtext"><span style="mso-spacerun:yes"> </span></span><span style="mso-bidi-font-size: 10.5pt;font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";color:windowtext">）原则，即设计基准与定位基准为同一个基准。</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;color:windowtext"><span style="mso-spacerun:yes"> </span><span style="mso-spacerun:yes"> </span></span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;color:windowtext;mso-font-kerning:0pt"> <o:p></o:p></span></p>
- 2022-09-12 [单选] <p class="MsoNormal" style="margin-top:7.8pt;mso-para-margin-top:.5gd; line-height:20.0pt;mso-line-height-rule:exactly">22、<span style="mso-bidi-font-size: 10.5pt">金属材料的切削加工性能是指切削金属材料的<span lang="EN-US">(<span style="mso-spacerun:yes"> </span>)</span>程度｡<span lang="EN-US"> <o:p></o:p></span></span></p>
- 2022-09-12 [单选] <p class="MsoNormal" style="mso-pagination:widow-orphan">27、<span style="mso-bidi-font-size:10.5pt;font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";color:windowtext">采用分组选择装配法以保证产品的装配精度。故在装配过程中应选择（</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;color:windowtext"><span style="mso-spacerun:yes"> </span></span><span style="mso-bidi-font-size: 10.5pt;font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";color:windowtext">）组的零件进行装配，以保证每组的零件装配后都能到达装配精度。</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;color:windowtext;mso-font-kerning: 0pt"> <o:p></o:p></span></p>
- 2022-09-12 [单选] <p class="MsoNormal" style="mso-pagination:widow-orphan">34、<span style="mso-bidi-font-size:10.5pt;font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";color:windowtext">在卧式车床上车削细长轴外圆，采用前后顶尖装夹。由于工件的受力变形，加工后工件将会产生（</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;color:windowtext"><span style="mso-spacerun:yes"> </span></span><span style="mso-bidi-font-size: 10.5pt;font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";color:windowtext">）</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;color:windowtext"><span style="mso-spacerun:yes"> </span></span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;color:windowtext;mso-font-kerning: 0pt"> <o:p></o:p></span></p>
- 2022-09-12 [单选] <p class="MsoNormal" style="margin-top:7.8pt;mso-para-margin-top:.5gd; line-height:20.0pt;mso-line-height-rule:exactly">35、<span style="mso-bidi-font-size: 10.5pt">选择定位基准时<span lang="EN-US">,</span>应遵循<span lang="EN-US">(<span style="mso-spacerun:yes"> </span>)</span>原则<span lang="EN-US">,</span>即设计基准与定位基准为同一个基准｡<span lang="EN-US"><span style="mso-spacerun:yes"> </span> <o:p></o:p></span></span></p>