成考院校在线答案
- 2022-09-12 [判断] <p class="MsoNormal" style="mso-pagination:widow-orphan;">8、<span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:0.0000pt;">在带传动中，弹性滑动和打滑都是可以避免的。（ ）</span><span style="font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:0.0000pt;"> <o:p></o:p></span></p>
- 2022-09-12 [判断] <p class="MsoNormal" style="mso-pagination:widow-orphan;">13、<span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:0.0000pt;">在铰链四杆机构中，如存在曲柄，则曲柄一定为最短杆。（ ）</span><span style="font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:0.0000pt;"> <o:p></o:p></span></p>
- 2022-09-12 [判断] <p class="MsoNormal" style="mso-pagination:widow-orphan;">16、<span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:0.0000pt;">对称循环变应力的应力循环特征r=0。</span><span style="font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:0.0000pt;"> <o:p></o:p></span></p>
- 2022-09-12 [判断] <p class="MsoNormal" style="mso-pagination:widow-orphan;">11、<span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:0.0000pt;">当机构的行程速比系数K>1时，表明该机构具有急回特性 。 ( )</span><span style="font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:0.0000pt;"> <o:p></o:p></span></p>
- 2022-09-12 [判断] <p class="MsoNormal" style="mso-pagination:widow-orphan;">19、<span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:0.0000pt;">用范成法加工标准齿轮不根切的最小齿数是17。（ ）</span><span style="font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:0.0000pt;"> <o:p></o:p></span></p>
- 2022-09-12 [判断] <p class="MsoNormal" style="mso-pagination:widow-orphan;">9、<span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:0.0000pt;">当机构的极位夹角θ=0°时，机构无急回特性。</span><span style="font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:0.0000pt;"> <o:p></o:p></span></p>
- 2022-09-12 [单选] <p class="MsoNormal" style="mso-pagination:widow-orphan;">30、<span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:0.0000pt;">已知斜齿圆柱齿轮的齿数Z＝20，螺旋角β＝15°，则当量齿数Z</span><sub><span style="font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:0.0000pt;vertical-align:sub;">v</span></sub><span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:0.0000pt;">＝______。 </span><span style="font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:0.0000pt;"> <o:p></o:p></span></p>
- 2022-09-12 [单选] <p class="MsoNormal" style="mso-pagination:widow-orphan;">38、<span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:0.0000pt;">带传动不能保证准确的传动比，其原因是______。</span><span style="font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:0.0000pt;"> <o:p></o:p></span></p>
- 2022-09-12 [单选] <p class="MsoNormal" style="mso-pagination:widow-orphan;">37、<span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:0.0000pt;">凸轮机构中，若从动件的运动规律是等速运动规律，则该机构将产生______冲击。 </span><span style="font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:0.0000pt;"> <o:p></o:p></span></p>
- 2022-09-12 [单选] <p class="MsoNormal" style="mso-pagination:widow-orphan;">36、<span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:10.5000pt;mso-font-kerning:0.0000pt;">标准齿轮按标准中心距安装时,其节圆与分度圆______。 </span><span style="font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:0.0000pt;"> <o:p></o:p></span></p>