作业辅导 发表于 2019-12-29 08:41:25

《机械制图》武汉理工大学20春作业二

机械制图-作业二
1.[单选题] <p class="MsoBodyText" style="margin-left:8.0pt;">      <span style="font-size:10.5pt;">下面平面是</span><span style="font-size:10.5pt;font-family:"">(<span>    </span>)</span><span style="font-size:10.5pt;">。</span><span style="font-size:10.5pt;font-family:""> </span>
<p class="MsoBodyText" style="margin-left:8.0pt;">      <img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204115044_553.png" alt="" />

奥鹏作业答案可以联系Q 761296021
    A.      水平面
    B.      正平面
    C.      侧平面
    D.      一般位置平面
    正确答案:——D——
2.[单选题] 1:5是（   ）比例。
    A.放大
    B.优先选用
    C.缩小
    D.不常用
    正确答案:——C——
3.[单选题] (       )是用来量取线段和分割线段的工具。
    A.圆规
    B.分规
    C.比例尺
    D.三角板
    正确答案:——B——
4.[单选题] 图样中的尺寸以(       )为单位时，不需标注计量单位的代号或名称。如采用其它单位，则必须注明相应的计量单位的代号或名称。
    A.km
    B.dm
    C.cm
    D.mm
    正确答案:————
5.[单选题] <p class="MsoNormal" style="margin-left:8.0pt;">      <span style="font-family:Microsoft Yahei;">下图为组合体的主、俯视图，该组合体形体的左视图是</span><span>(<span>   </span>)</span><span style="font-family:Microsoft Yahei;">。</span>
<p class="MsoNormal" style="margin-left:8.0pt;">      <span style="font-family:Microsoft Yahei;"><img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204143754_170.png" alt="" /><br /></span>

    A.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204143807_445.png" alt="" />
    B.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204143924_772.png" alt="" />
    C.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204144950_586.png" alt="" />
    D.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204144544_898.png" alt="" />
    正确答案:————
6.[单选题] <p class="MsoNormal">      <span style="font-family:Microsoft Yahei;">关于三角形</span><span>ABC</span><span style="font-family:Microsoft Yahei;">与投影面的位置关系，正确的是</span><span>(<span>    </span>)</span><span style="font-family:Microsoft Yahei;">。</span><span> </span>
<p class="MsoNormal">      <img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204110204_374.png" alt="" />

    A.      一般位置平面
    B.      正平面
    C.      侧垂面
    D.      水平面
    正确答案:————
7.[单选题] <p class="MsoNormal">      <span style="font-family:Microsoft Yahei;">下图所示为五棱柱的主俯视图，其中投影关系正确的是</span><span>(<span>   </span>)</span><span style="font-family:Microsoft Yahei;">。</span><span> </span>
<p class="MsoNormal">      <span style="font-family:Microsoft Yahei;"><img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204142222_400.png" alt="" /><br /></span>

    A.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204141625_109.png" alt="" />
    B.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204142326_587.png" alt="" />
    C.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204143604_518.png" alt="" />
    D.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204142350_36.png" alt="" />
    正确答案:————
8.[单选题] 已知双线螺纹，螺距为1，则它的导程为(      )。
    A.1
    B.2
    C.3
    D.4
    正确答案:————
9.[单选题] <p class="MsoNormal">      <span style="font-family:Microsoft Yahei;">已知立体截切后的两个投影，它的侧面投影正确的是</span><span>(<span>       </span>)</span><span style="font-family:Microsoft Yahei;">。</span><span> </span>
<p class="MsoNormal">      <img alt="" src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191119/20191119102622_748.png" /><br /><span> </span>

    A.<p class="MsoNormal" style="display:inline;">      <img alt="" src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204153153_501.png" /><br /><span> </span>

    B.<p class="MsoNormal" style="display:inline;">      <img alt="" src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204153210_161.png" /><br /><span> </span>

    C.<p class="MsoNormal" style="display:inline;">      <img alt="" src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191119/20191119102701_397.png" /><br /><span> </span>

    D.<p class="MsoNormal" style="display:inline;">      <img alt="" src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191119/20191119102709_458.png" /><br /><span> </span>

    正确答案:————
10.[单选题] <p class="MsoNormal" style="margin-left:8.0pt;">      <span style="font-family:Microsoft Yahei;">选择正确的左视图</span><span>(<span>   </span>)</span>
<p class="MsoNormal" style="margin-left:8.0pt;">      <img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204151332_501.png" alt="" />

    A.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204152033_3.png" alt="" />
    B.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204153313_226.png" alt="" />
    C.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204151415_780.png" alt="" />
    D.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204152112_322.png" alt="" />
    正确答案:————
11.[单选题] <p class="MsoNormal">      <span style="font-family:Microsoft Yahei;">下图中，点</span><span>B</span><span style="font-family:Microsoft Yahei;">是（</span><span><span>      </span></span><span style="font-family:Microsoft Yahei;">），取点方法是（</span><span><span>      </span></span><span style="font-family:Microsoft Yahei;">）。</span><span> </span>
<p class="MsoNormal">      <img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204151010_384.png" alt="" />

    A.      一般点，素线法
    B.      一般点，纬圆法
    C.      特殊点，素线法
    D.      特殊点，纬圆法
    正确答案:————
12.[单选题] 平行于一个投影面而与另外两个投影面倾斜的直线称为(       )。
    A.投影面平行线
    B.正平线
    C.水平线
    D.侧平线
    正确答案:————
13.[单选题] 一线段的正投影长度(    )。
    A.一定小于该线段的实长
    B.可能大于该线段的实长
    C.一定等于该线段的实长
    D.可以小于或等于该线段的实长
    正确答案:————
14.[单选题] 垂直于H面的平面称为(    )。
    A.正垂面
    B.铅垂面
    C.水平面
    D.一般面
    正确答案:————
15.[单选题] 装配图中的零件指引线画(       )。
    A.虚线
    B.粗实线
    C.点画线
    D.细实线
    正确答案:————
16.[单选题] 装配图中每一种零件在视图上(       )。
    A.只编一个序号
    B.编二个序号
    C.最多编三个序号
    D.每个视图均需编号
    正确答案:————
17.[单选题] 当截平面截切圆球时，截交线形状为：
    A.圆
    B.椭圆
    C.抛物线
    D.双曲线
    正确答案:————
18.[单选题] 在采用2：1的比例绘制一个半径是10的圆弧时，其绘图半径为（   ）。
    A.R10
    B.R20
    C.R5
    D.R30
    正确答案:————
19.[单选题] 我国国标规定，表示轴线、对称中心线采用（   ）线型。
    A.粗实线
    B.细实线
    C.虚线
    D.细点画线
    正确答案:————
20.[单选题] <p class="MsoNormal">      <span style="font-family:Microsoft Yahei;">下列水平投影正确的是（</span><span><span>      </span></span><span style="font-family:Microsoft Yahei;">）。</span><span> </span>
<p class="MsoNormal">      <img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204104616_720.png" alt="" />

    A.<p class="MsoNormal" style="display:inline;">      <img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204105315_108.png" alt="" />

    B.<p class="MsoNormal" style="display:inline;">      <img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204110602_492.png" alt="" />

    C.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204110617_977.png" alt="" />
    D.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204105405_701.png" alt="" />
    正确答案:————
21.[单选题]         在下列四组视图中，正确的一组视图是（      ）
    A.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204103029_586.png" alt="" />
    B.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204102410_634.png" alt="" />
    C.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204103112_785.png" alt="" />
    D.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204103518_921.png" alt="" />
    正确答案:————
22.[单选题] <p class="MsoNormal" style="mso-pagination:widow-orphan"><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"">组合体俯视图画法正确的是</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt"> (<span style="mso-spacerun:yes">       </span>)<o:p></o:p></span>
<p class="MsoNormal" style="mso-pagination:widow-orphan"><span lang="EN-US" style="mso-bidi-font-size:10.5pt;mso-font-kerning:0pt;mso-no-proof:yes"><!--><v:shape   id="图片_x0020_122" o:spid="_x0000_i1071" type="#_x0000_t75" style='width:169.8pt;   height:63pt;visibility:visible;mso-wrap-style:square'>   <v:imagedata src="JXZTDX(1).files/image122.png" o:title="" cropbottom="38656f"    cropright="34559f"/></v:shape><!--><!----><img width="226" height="84" v:shapes="图片_x0020_122" src="http://wljy.whut.edu.cn:80/uploadfiles/word/JXZTDX(1).files/image123.png"><!----></span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;mso-font-kerning:0pt"><o:p></o:p></span>

    A.<p class="MsoNormal" style="mso-pagination:widow-orphan" style="display:inline;"><span lang="EN-US" style="mso-bidi-font-size:10.5pt;mso-font-kerning:0pt;mso-no-proof:yes"><!--><v:shape   id="图片_x0020_123" o:spid="_x0000_i1070" type="#_x0000_t75" style='width:89.4pt;   height:72.6pt;visibility:visible;mso-wrap-style:square'>   <v:imagedata src="JXZTDX(1).files/image122.png" o:title="" croptop="29440f"    cropbottom="5056f" cropright="49225f"/></v:shape><!--><!----><img width="119" height="97" v:shapes="图片_x0020_123" src="http://wljy.whut.edu.cn:80/uploadfiles/word/JXZTDX(1).files/image124.png"><!----></span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;mso-font-kerning:0pt"><o:p></o:p></span>

    B.<p class="MsoNormal" style="mso-pagination:widow-orphan" style="display:inline;"><span lang="EN-US" style="mso-bidi-font-size:10.5pt;mso-font-kerning:0pt;mso-no-proof:yes"><!--><v:shape   id="图片_x0020_124" o:spid="_x0000_i1069" type="#_x0000_t75" style='width:89.4pt;   height:1in;visibility:visible;mso-wrap-style:square'>   <v:imagedata src="JXZTDX(1).files/image122.png" o:title="" croptop="29440f"    cropbottom="5377f" cropleft="16311f" cropright="32914f"/></v:shape><!--><!----><img width="119" height="96" v:shapes="图片_x0020_124" src="http://wljy.whut.edu.cn:80/uploadfiles/word/JXZTDX(1).files/image125.png"><!----></span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;mso-font-kerning:0pt"><o:p></o:p></span>

    C.<p class="MsoNormal" style="mso-pagination:widow-orphan" style="display:inline;"><span lang="EN-US" style="mso-bidi-font-size:10.5pt;mso-font-kerning:0pt;mso-no-proof:yes"><!--><v:shape   id="图片_x0020_125" o:spid="_x0000_i1068" type="#_x0000_t75" style='width:89.4pt;   height:71.4pt;visibility:visible;mso-wrap-style:square'>   <v:imagedata src="JXZTDX(1).files/image122.png" o:title="" croptop="30080f"    cropbottom="5056f" cropleft="32896f" cropright="16330f"/></v:shape><!--><!----><img width="119" height="95" v:shapes="图片_x0020_125" src="http://wljy.whut.edu.cn:80/uploadfiles/word/JXZTDX(1).files/image126.png"><!----></span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;mso-font-kerning:0pt"><o:p></o:p></span>

    D.<p class="MsoNormal" style="mso-pagination:widow-orphan" style="display:inline;"><span lang="EN-US" style="mso-bidi-font-size:10.5pt;mso-font-kerning:0pt;mso-no-proof:yes"><!--><v:shape   id="图片_x0020_126" o:spid="_x0000_i1067" type="#_x0000_t75" style='width:88.8pt;   height:68.4pt;visibility:visible;mso-wrap-style:square'>   <v:imagedata src="JXZTDX(1).files/image122.png" o:title="" croptop="31040f"    cropbottom="5376f" cropleft="49344f"/></v:shape><!--><!----><img width="118" height="91" v:shapes="图片_x0020_126" src="http://wljy.whut.edu.cn:80/uploadfiles/word/JXZTDX(1).files/image127.png"><!----></span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;mso-font-kerning:0pt"><o:p></o:p></span>

    正确答案:————
23.[单选题] <p class="MsoNormal">      <span style="font-family:Microsoft Yahei;">已知组合体的主视图和俯视图，左视图是</span><span> (<span>       </span>)</span><span style="font-family:Microsoft Yahei;">。</span>
<p class="MsoNormal">      <span style="font-family:Microsoft Yahei;"><img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204144326_441.png" alt="" /><br /></span>

    A.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204143119_972.png" alt="" />
    B.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204143131_990.png" alt="" />
    C.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204143143_770.png" alt="" />
    D.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204143153_575.png" alt="" />
    正确答案:————
24.[单选题] 机器零件的真实大小应以图样上（   ）为依据。
    A.绘图的准确度
    B.所注尺寸数值乘以比例
    C.图形的大小
    D.所注尺寸数值
    正确答案:————
25.[单选题] 表示基轴制配合的是（      ）
    A.<p class="MsoNormal" style="mso-pagination:widow-orphan" style="display:inline;"><span lang="EN-US" style="mso-bidi-font-size:10.5pt;mso-font-kerning:0pt;mso-no-proof:yes"><!--><v:shape   id="图片_x0020_97" o:spid="_x0000_i1045" type="#_x0000_t75" style='width:15.6pt;   height:28.2pt;visibility:visible;mso-wrap-style:square'>   <v:imagedata src="JXZTDX(1).files/image168.png" o:title=""/></v:shape><!--><!----><img width="21" height="38" v:shapes="图片_x0020_97" src="http://wljy.whut.edu.cn:80/uploadfiles/word/JXZTDX(1).files/image169.png"><!----></span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;mso-font-kerning:0pt"><o:p></o:p></span>

    B.<p class="MsoNormal" style="mso-pagination:widow-orphan" style="display:inline;"><span lang="EN-US" style="mso-bidi-font-size:10.5pt"><!--><v:shape id="_x0000_i1025"   type="#_x0000_t75" style='width:22.8pt;height:31.2pt' o:ole="">   <v:imagedata src="JXZTDX(1).files/image170.wmz" o:title=""/></v:shape><!--><!----><img width="30" height="42" v:shapes="_x0000_i1025" src="http://wljy.whut.edu.cn:80/uploadfiles/word/JXZTDX(1).files/image171.png"><!----><!--><xml>   <o:OLEObject Type="Embed" ProgID="Equation.3" ShapeID="_x0000_i1025"    DrawAspect="Content" ObjectID="_1633350177">   </o:OLEObject></xml><!--><span style="mso-font-kerning:0pt">   <o:p></o:p></span></span>

    C.<p class="MsoNormal" style="mso-pagination:widow-orphan" style="display:inline;"><span lang="EN-US" style="mso-bidi-font-size:10.5pt"><!--><v:shape id="_x0000_i1026"   type="#_x0000_t75" style='width:19.2pt;height:28.8pt' o:ole="">   <v:imagedata src="JXZTDX(1).files/image172.wmz" o:title=""/></v:shape><!--><!----><img width="26" height="38" v:shapes="_x0000_i1026" src="http://wljy.whut.edu.cn:80/uploadfiles/word/JXZTDX(1).files/image173.png"><!----><!--><xml>   <o:OLEObject Type="Embed" ProgID="Equation.3" ShapeID="_x0000_i1026"    DrawAspect="Content" ObjectID="_1633350178">   </o:OLEObject></xml><!--><span style="mso-font-kerning:0pt">   <o:p></o:p></span></span>

    D.<p class="MsoNormal" style="mso-pagination:widow-orphan" style="display:inline;"><span lang="EN-US" style="mso-bidi-font-size:10.5pt"><!--><v:shape id="_x0000_i1027"   type="#_x0000_t75" style='width:21pt;height:28.8pt' o:ole="">   <v:imagedata src="JXZTDX(1).files/image174.wmz" o:title=""/></v:shape><!--><!----><img width="28" height="38" v:shapes="_x0000_i1027" src="http://wljy.whut.edu.cn:80/uploadfiles/word/JXZTDX(1).files/image175.png"><!----><!--><xml>   <o:OLEObject Type="Embed" ProgID="Equation.3" ShapeID="_x0000_i1027"    DrawAspect="Content" ObjectID="_1633350179">   </o:OLEObject></xml><!--><span style="mso-font-kerning:0pt">   <o:p></o:p></span></span>

    正确答案:————
26.[单选题] <p class="MsoNormal">      <span style="font-family:Microsoft Yahei;">组成图示正三棱锥的</span><span>6</span><span style="font-family:Microsoft Yahei;">条棱线中，投影面平行线有</span><u><span><span>    </span></span></u><span style="font-family:Microsoft Yahei;">条，投影面垂直线有</span><u><span><span>    </span></span></u><span style="font-family:Microsoft Yahei;">条，一般位置直线有</span><u><span><span>    </span></span></u><span style="font-family:Microsoft Yahei;">条。</span><span>(<span>   </span>)</span>
<p class="MsoNormal">      <img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204130248_510.png" alt="" />

    A.      0,3,1
    B.      1,2,3
    C.      3,1,2
    D.      3,2,0
    正确答案:————
27.[单选题] <p class="MsoNormal">      <span style="font-family:Microsoft Yahei;">根据水平投影和侧面投影，选择正确的正面投影。</span><span>(<span>       </span>)</span>
<p class="MsoNormal">      <img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204150258_949.png" alt="" />

    A.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204145626_42.png" alt="" />
    B.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204153525_320.png" alt="" />
    C.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204153646_940.png" alt="" />
    D.<p class="MsoNormal" style="display:inline;">      <img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204150528_770.png" alt="" />

    正确答案:————
28.[单选题]         圆柱倒角尺寸的正确注法是(      )。
    A.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204144732_239.png" alt="" />
    B.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204150654_40.png" alt="" />
    C.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204144755_242.png" alt="" />
    D.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204144820_32.png" alt="" />
    正确答案:————
29.[单选题] <p class="MsoNormal">      <span style="font-family:Microsoft Yahei;">轴上加工了两个垂直相交的等直径小圆孔，其正确的</span><span>A-A</span><span style="font-family:Microsoft Yahei;">剖面图是</span><span>(<span>      </span>)</span><span style="font-family:Microsoft Yahei;">。</span>
<p class="MsoNormal">      <span style="font-family:Microsoft Yahei;"><img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204103633_961.png" alt="" /><br /></span>

    A.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204103643_125.png" alt="" />
    B.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204103659_492.png" alt="" />
    C.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204105622_104.png" alt="" />
    D.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204105634_415.png" alt="" />
    正确答案:————
30.[单选题] <p class="MsoNormal" style="mso-pagination:widow-orphan"><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"">下图为组合体的主、俯视图，该组合体主视图正确的全剖视图是</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt"> (<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"">。</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt"><o:p></o:p></span>
<p class="MsoNormal" style="mso-pagination:widow-orphan"><span lang="EN-US" style="mso-bidi-font-size:10.5pt;mso-no-proof:yes"><!--><v:shape   id="图片_x0020_54" o:spid="_x0000_i1056" type="#_x0000_t75" style='width:82.2pt;   height:52.8pt;visibility:visible;mso-wrap-style:square'>   <v:imagedata src="JXZTDX(1).files/image150.png" o:title="" cropbottom="39081f"    chromakey="white" blacklevel="-15729f" grayscale="t" bilevel="t"/></v:shape><!--><!----><img width="110" height="70" v:shapes="图片_x0020_54" src="http://wljy.whut.edu.cn:80/uploadfiles/word/JXZTDX(1).files/image151.png"><!----><span style="mso-font-kerning:0pt">   <!--><v:shape id="图片_x0020_59"   o:spid="_x0000_i1055" type="#_x0000_t75" style='width:81.6pt;height:77.4pt;   visibility:visible;mso-wrap-style:square'>   <v:imagedata src="JXZTDX(1).files/image152.png" o:title=""/></v:shape><!-->   <!----><img width="109" height="103" v:shapes="图片_x0020_59" src="http://wljy.whut.edu.cn:80/uploadfiles/word/JXZTDX(1).files/image153.png">   <!----></span></span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;mso-font-kerning:0pt"><o:p></o:p></span>

    A.<p class="MsoNormal" style="mso-pagination:widow-orphan" style="display:inline;"><span lang="EN-US" style="mso-bidi-font-size:10.5pt;mso-no-proof:yes"><!--><v:shape   id="图片_x0020_72" o:spid="_x0000_i1054" type="#_x0000_t75" style='width:73.8pt;   height:49.2pt;visibility:visible;mso-wrap-style:square'>   <v:imagedata src="JXZTDX(1).files/image154.png" o:title="" chromakey="white"    blacklevel="-11796f" grayscale="t" bilevel="t"/></v:shape><!--><!----><img width="98" height="66" v:shapes="图片_x0020_72" src="http://wljy.whut.edu.cn:80/uploadfiles/word/JXZTDX(1).files/image155.png"><!----></span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;mso-font-kerning:0pt"><o:p></o:p></span>

    B.<p class="MsoNormal" style="mso-pagination:widow-orphan" style="display:inline;"><span lang="EN-US" style="mso-bidi-font-size:10.5pt;mso-no-proof:yes"><!--><v:shape   id="图片_x0020_130" o:spid="_x0000_i1053" type="#_x0000_t75" style='width:73.8pt;   height:48.6pt;visibility:visible;mso-wrap-style:square'>   <v:imagedata src="JXZTDX(1).files/image156.png" o:title="" chromakey="white"    blacklevel="-15729f" grayscale="t" bilevel="t"/></v:shape><!--><!----><img width="98" height="65" v:shapes="图片_x0020_130" src="http://wljy.whut.edu.cn:80/uploadfiles/word/JXZTDX(1).files/image157.png"><!----></span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;mso-font-kerning:0pt"><o:p></o:p></span>

    C.<p class="MsoNormal" style="mso-pagination:widow-orphan" style="display:inline;"><span lang="EN-US" style="mso-bidi-font-size:10.5pt;mso-no-proof:yes"><!--><v:shape   id="图片_x0020_131" o:spid="_x0000_i1052" type="#_x0000_t75" style='width:73.8pt;   height:49.2pt;visibility:visible;mso-wrap-style:square'>   <v:imagedata src="JXZTDX(1).files/image158.png" o:title="" chromakey="white"    blacklevel="-11796f" grayscale="t" bilevel="t"/></v:shape><!--><!----><img width="98" height="66" v:shapes="图片_x0020_131" src="http://wljy.whut.edu.cn:80/uploadfiles/word/JXZTDX(1).files/image159.png"><!----></span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;mso-font-kerning:0pt"><o:p></o:p></span>

    D.<p class="MsoNormal" style="mso-pagination:widow-orphan" style="display:inline;"><span lang="EN-US" style="mso-bidi-font-size:10.5pt;mso-no-proof:yes"><!--><v:shape   id="图片_x0020_132" o:spid="_x0000_i1051" type="#_x0000_t75" style='width:73.8pt;   height:48.6pt;visibility:visible;mso-wrap-style:square'>   <v:imagedata src="JXZTDX(1).files/image160.png" o:title="" chromakey="white"    blacklevel="-13763f" grayscale="t" bilevel="t"/></v:shape><!--><!----><img width="98" height="65" v:shapes="图片_x0020_132" src="http://wljy.whut.edu.cn:80/uploadfiles/word/JXZTDX(1).files/image161.png"><!----></span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;mso-font-kerning:0pt"><o:p></o:p></span>

    正确答案:————
31.[单选题] 当圆柱体的轴线垂直于水平面时，圆柱面的水平投影具有      ，其形状是       。（      ）
    A.积聚性，矩形
    B.积聚性，圆
    C.实形性，矩形    奥鹏作业答案q761 296021

    D.实形性，圆
    正确答案:————
32.[单选题] 断面图的种类分为几种 (      )
    A.1种
    B.2种
    C.3种
    D.4种
    正确答案:————
33.[单选题] 下图中表面粗糙度代号标注正确的是(      )。
    A.<p class="MsoNormal" style="mso-pagination:widow-orphan" style="display:inline;"><span lang="EN-US" style="mso-bidi-font-size:10.5pt;mso-font-kerning:0pt;mso-no-proof:yes"><!--><v:shape   id="图片_x0020_136" o:spid="_x0000_i1036" type="#_x0000_t75" style='width:116.4pt;   height:80.4pt;visibility:visible;mso-wrap-style:square'>   <v:imagedata src="JXZTDX(1).files/image194.png" o:title="" cropbottom="8183f"    cropright="48900f"/></v:shape><!--><!----><img width="155" height="107" v:shapes="图片_x0020_136" src="http://wljy.whut.edu.cn:80/uploadfiles/word/JXZTDX(1).files/image195.png"><!----></span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;mso-font-kerning:0pt"><o:p></o:p></span>

    B.<p class="MsoNormal" style="mso-pagination:widow-orphan" style="display:inline;"><span lang="EN-US" style="mso-bidi-font-size:10.5pt;mso-font-kerning:0pt;mso-no-proof:yes"><!--><v:shape   id="图片_x0020_138" o:spid="_x0000_i1035" type="#_x0000_t75" style='width:88.2pt;   height:75.6pt;visibility:visible;mso-wrap-style:square'>   <v:imagedata src="JXZTDX(1).files/image194.png" o:title="" cropbottom="11399f"    cropleft="16636f" cropright="36342f"/></v:shape><!--><!----><img width="118" height="101" v:shapes="图片_x0020_138" src="http://wljy.whut.edu.cn:80/uploadfiles/word/JXZTDX(1).files/image196.png"><!----></span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;mso-font-kerning:0pt"><o:p></o:p></span>

    C.<p class="MsoNormal" style="mso-pagination:widow-orphan" style="display:inline;"><span lang="EN-US" style="mso-bidi-font-size:10.5pt;mso-font-kerning:0pt;mso-no-proof:yes"><!--><v:shape   id="图片_x0020_140" o:spid="_x0000_i1034" type="#_x0000_t75" style='width:76.2pt;   height:75.6pt;visibility:visible;mso-wrap-style:square'>   <v:imagedata src="JXZTDX(1).files/image194.png" o:title="" cropbottom="11399f"    cropleft="29515f" cropright="25073f"/></v:shape><!--><!----><img width="102" height="101" v:shapes="图片_x0020_140" src="http://wljy.whut.edu.cn:80/uploadfiles/word/JXZTDX(1).files/image197.png"><!----></span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;mso-font-kerning:0pt"><o:p></o:p></span>

    D.<p class="MsoNormal" style="mso-pagination:widow-orphan" style="display:inline;"><span lang="EN-US" style="mso-bidi-font-size:10.5pt;mso-font-kerning:0pt;mso-no-proof:yes"><!--><v:shape   id="图片_x0020_142" o:spid="_x0000_i1033" type="#_x0000_t75" style='width:136.8pt;   height:53.4pt;visibility:visible;mso-wrap-style:square'>   <v:imagedata src="JXZTDX(1).files/image194.png" o:title="" cropbottom="27479f"    cropleft="45937f"/></v:shape><!--><!----><img width="182" height="71" v:shapes="图片_x0020_142" src="http://wljy.whut.edu.cn:80/uploadfiles/word/JXZTDX(1).files/image198.png"><!----></span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;mso-font-kerning:0pt"><o:p></o:p></span>

    正确答案:————
34.[单选题] 组合体画法正确的是 (       )
    A.<p class="MsoNormal" style="mso-pagination:widow-orphan" style="display:inline;"><span lang="EN-US" style="mso-bidi-font-size:10.5pt;mso-no-proof:yes"><!--><v:shape   id="_x0000_i1090" type="#_x0000_t75" style='width:98.4pt;height:134.4pt;   visibility:visible;mso-wrap-style:square'>   <v:imagedata src="JXZTDX(1).files/image094.png" o:title="" cropbottom="6169f"    cropright="50028f"/></v:shape><!--><!----><img width="131" height="179" v:shapes="_x0000_i1090" src="http://wljy.whut.edu.cn:80/uploadfiles/word/JXZTDX(1).files/image095.jpg"><!----></span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;mso-font-kerning:0pt"><o:p></o:p></span>

    B.<p class="MsoNormal" style="mso-pagination:widow-orphan" style="display:inline;"><span lang="EN-US" style="mso-bidi-font-size:10.5pt;mso-no-proof:yes"><!--><v:shape   id="_x0000_i1089" type="#_x0000_t75" style='width:102pt;height:135pt;   visibility:visible;mso-wrap-style:square'>   <v:imagedata src="JXZTDX(1).files/image094.png" o:title="" cropbottom="5837f"    cropleft="16337f" cropright="33099f"/></v:shape><!--><!----><img width="136" height="180" v:shapes="_x0000_i1089" src="http://wljy.whut.edu.cn:80/uploadfiles/word/JXZTDX(1).files/image096.jpg"><!----></span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;mso-font-kerning:0pt"><o:p></o:p></span>

    C.<p class="MsoNormal" style="mso-pagination:widow-orphan" style="display:inline;"><span lang="EN-US" style="mso-bidi-font-size:10.5pt;mso-no-proof:yes"><!--><v:shape   id="图片_x0020_3" o:spid="_x0000_i1088" type="#_x0000_t75" style='width:105pt;   height:134.4pt;visibility:visible;mso-wrap-style:square'>   <v:imagedata src="JXZTDX(1).files/image094.png" o:title="" cropbottom="6169f"    cropleft="32910f" cropright="16052f"/></v:shape><!--><!----><img width="140" height="179" v:shapes="图片_x0020_3" src="http://wljy.whut.edu.cn:80/uploadfiles/word/JXZTDX(1).files/image097.jpg"><!----></span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;mso-font-kerning:0pt"><o:p></o:p></span>

    D.<p class="MsoNormal" style="mso-pagination:widow-orphan" style="display:inline;"><span lang="EN-US" style="mso-bidi-font-size:10.5pt;mso-font-kerning:0pt;mso-no-proof:yes"><!--><v:shape   id="图片_x0020_101" o:spid="_x0000_i1087" type="#_x0000_t75" style='width:99.6pt;   height:134.4pt;visibility:visible;mso-wrap-style:square'>   <v:imagedata src="JXZTDX(1).files/image098.png" o:title="" cropbottom="6229f"    cropleft="49832f"/></v:shape><!--><!----><img width="133" height="179" v:shapes="图片_x0020_101" src="http://wljy.whut.edu.cn:80/uploadfiles/word/JXZTDX(1).files/image099.png"><!----></span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;mso-font-kerning:0pt"><o:p></o:p></span>

    正确答案:————
35.[单选题]         下图所示为正三棱锥的主俯视图，其中投影关系正确的是(   )。
    A.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204122848_280.png" alt="" />
    B.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204121636_577.png" alt="" />
    C.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204121648_657.png" alt="" />
    D.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204121703_232.png" alt="" />
    正确答案:————
36.[单选题] 下列说法哪种正确 (      )
    A.断面图的概念为假想用剖切平面将机件的某处切断，仅画出剖切平面与机件接触的部分图形，称为断面图
    B.断面图的概念为假想用剖切平面将机件的某处切断，不仅要画出剖切平面与机件接触的部分图形，还要画出所有可见部分的图形，称为断面图
    C.断面图的概念为真正用平面将机件的某处切断，不仅要画出剖切平面与机件接触的部分图形，还要画出所有可见部分的图形，称为断面图
    D.断面图的概念为真正用平面将机件的某处切断，仅画出剖切平面与机件接触的部分图形，称为断面图
    正确答案:————
37.[单选题] 形体的投影规律“长对正、高平齐、宽相等” (    )。
    A.对整体不适用、局部适用
    B.对整体、局部都适用
    C.对整体、局部都不适用
    D.对整体适用、局部不适用
    正确答案:————
38.[单选题] 用纬圆法求圆锥表面上的点时，纬圆的直径大小与纬圆的圆心到锥顶的距离(    )。
    A.成正比
    B.成反比
    C.相等
    D.没有关系
    正确答案:————
39.[单选题] <p class="MsoNormal">      <span style="font-family:Microsoft Yahei;">以下关于点</span><span>A</span><span style="font-family:Microsoft Yahei;">与</span><span>B</span><span style="font-family:Microsoft Yahei;">的相对位置关系，哪个描述是正确的</span><span>? (<span>    </span>)</span>
<p class="MsoNormal">      <img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204125734_958.png" alt="" />

    A.      A点在B点的左面
    B.      A点在B点的下面
    C.      A点在B点的前面
    D.      A点在B点的后面
    正确答案:————
40.[单选题] <p class="MsoNormal" style="mso-pagination:widow-orphan"><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"">已知主视图和俯视图，正确左视图是</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt">(<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"">。</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt"><o:p></o:p></span>
<p class="MsoNormal" style="mso-pagination:widow-orphan"><span lang="EN-US" style="mso-bidi-font-size:10.5pt;mso-no-proof:yes"><!--><v:shape   id="图片_x0020_81" o:spid="_x0000_i1099" type="#_x0000_t75" alt="02183-４"   style='width:66.6pt;height:147.6pt;visibility:visible;mso-wrap-style:square'>   <v:imagedata src="JXZTDX(1).files/image083.png" o:title="02183-４"    cropright="53238f"/></v:shape><!--><!----><img width="89" height="197" alt="02183-４" v:shapes="图片_x0020_81" src="http://wljy.whut.edu.cn:80/uploadfiles/word/JXZTDX(1).files/image084.jpg"><!----></span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;mso-font-kerning:0pt"><o:p></o:p></span>

    A.<p class="MsoNormal" style="mso-pagination:widow-orphan" style="display:inline;"><span lang="EN-US" style="mso-bidi-font-size:10.5pt;mso-no-proof:yes"><!--><v:shape   id="图片_x0020_82" o:spid="_x0000_i1098" type="#_x0000_t75" alt="02183-４"   style='width:63pt;height:81pt;visibility:visible;mso-wrap-style:square'>   <v:imagedata src="JXZTDX(1).files/image083.png" o:title="02183-４"    cropbottom="29584f" cropleft="14094f" cropright="39834f"/></v:shape><!--><!----><img width="84" height="108" alt="02183-４" v:shapes="图片_x0020_82" src="http://wljy.whut.edu.cn:80/uploadfiles/word/JXZTDX(1).files/image085.jpg"><!----></span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;mso-font-kerning:0pt"><o:p></o:p></span>

    B.<p class="MsoNormal" style="mso-pagination:widow-orphan" style="display:inline;"><span lang="EN-US" style="mso-bidi-font-size:10.5pt;mso-no-proof:yes"><!--><v:shape   id="图片_x0020_83" o:spid="_x0000_i1097" type="#_x0000_t75" alt="02183-４"   style='width:61.8pt;height:83.4pt;visibility:visible;mso-wrap-style:square'>   <v:imagedata src="JXZTDX(1).files/image083.png" o:title="02183-４"    cropbottom="28597f" cropleft="28188f" cropright="26018f"/></v:shape><!--><!----><img width="82" height="111" alt="02183-４" v:shapes="图片_x0020_83" src="http://wljy.whut.edu.cn:80/uploadfiles/word/JXZTDX(1).files/image086.jpg"><!----></span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;mso-font-kerning:0pt"><o:p></o:p></span>

    C.<p class="MsoNormal" style="mso-pagination:widow-orphan" style="display:inline;"><span lang="EN-US" style="mso-bidi-font-size:10.5pt;mso-no-proof:yes"><!--><v:shape   id="图片_x0020_84" o:spid="_x0000_i1096" type="#_x0000_t75" alt="02183-４"   style='width:61.8pt;height:85.8pt;visibility:visible;mso-wrap-style:square'>   <v:imagedata src="JXZTDX(1).files/image083.png" o:title="02183-４"    cropbottom="27586f" cropleft="41315f" cropright="12889f"/></v:shape><!--><!----><img width="82" height="114" alt="02183-４" v:shapes="图片_x0020_84" src="http://wljy.whut.edu.cn:80/uploadfiles/word/JXZTDX(1).files/image087.jpg"><!----></span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;mso-font-kerning:0pt"><o:p></o:p></span>

    D.<p class="MsoNormal" style="mso-pagination:widow-orphan" style="display:inline;"><span lang="EN-US" style="mso-bidi-font-size:10.5pt;mso-no-proof:yes"><!--><v:shape   id="图片_x0020_85" o:spid="_x0000_i1095" type="#_x0000_t75" alt="02183-４"   style='width:61.8pt;height:83.4pt;visibility:visible;mso-wrap-style:square'>   <v:imagedata src="JXZTDX(1).files/image083.png" o:title="02183-４"    cropbottom="28585f" cropleft="54165f"/></v:shape><!--><!----><img width="82" height="111" alt="02183-４" v:shapes="图片_x0020_85" src="http://wljy.whut.edu.cn:80/uploadfiles/word/JXZTDX(1).files/image088.jpg"><!----></span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;mso-font-kerning:0pt"><o:p></o:p></span>

    正确答案:————

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