成考院校在线答案
- 2022-09-12 [判断] <p class="MsoNormal" style="mso-pagination:widow-orphan">20、<span style="mso-bidi-font-size:10.5pt;font-family:黑体">提高功率因数，可使负载中的电流减小，因此电源利用率提高。</span><span lang="EN-US" style="font-family:黑体"><span style="mso-spacerun:yes"> </span></span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;font-family: 黑体"><span style="mso-spacerun:yes"> </span></span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;font-family:黑体;mso-font-kerning:0pt">( ) <o:p></o:p></span></p>
- 2022-09-12 [单选] <p class="MsoNormal" style="line-height:18.0pt;mso-line-height-rule:exactly">23、<span style="font-size:12.0pt;font-family:黑体;mso-bidi-font-family:宋体">在<span lang="EN-US">RLC</span>串联电路中，<span lang="EN-US">R=30Ω,X<sub>C</sub>=50Ω,X<sub>L</sub>=90Ω</span>，则该电路的阻抗为<span lang="EN-US">(<span style="mso-spacerun:yes"> </span><span style="mso-spacerun:yes"> </span><span style="mso-spacerun:yes"> </span>) <o:p></o:p></span></span></p> <p class="MsoNormal" style="mso-pagination:widow-orphan"><span lang="EN-US" style="mso-bidi-font-size:10.5pt;font-family:黑体;mso-font-kerning:0pt"> <o:p> </o:p></span></p>
- 2022-09-12 [单选] <p class="MsoNormal" style="mso-pagination:widow-orphan">24、 <!--[if gte vml 1]><v:group id="组合_x0020_132" o:spid="_x0000_s1156" style='position:absolute;left:0; text-align:left;margin-left:53.85pt;margin-top:27.1pt;width:136.5pt; height:121.45pt;z-index:251656192;mso-position-horizontal-relative:text; mso-position-vertical-relative:text' coordorigin="1140,3583" coordsize="2730,2429"> <v:shape id="文本框_x0020_133" o:spid="_x0000_s1157" type="#_x0000_t202" style='position:absolute;left:2289;top:5658;width:420;height:354' filled="f" stroked="f"> <v:textbox inset="0,0,0,0"> <![if !mso]> <table _tmplitem="4" cellpadding=0 cellspacing=0 width="100%"> <tr _tmplitem="4" > <td _tmplitem="4" ><![endif]> <div _tmplitem="4" > <p _tmplitem="4" class=MsoNormal><span _tmplitem="4" style='font-family:Microsoft Yahei;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"'>图</span><span _tmplitem="4" lang=EN-US>3</span></p> </div> <![if !mso]></td> </tr> </table> <![endif]></v:textbox> </v:shape><v:shape id="对象_x0020_134" o:spid="_x0000_s1158" type="#_x0000_t75" style='position:absolute;left:1140;top:3583;width:2730;height:2055'> <v:imagedata src="DLYL22.files/image042.wmz" o:title=""></v:imagedata> </v:shape></v:group><![if gte mso 9]><o:OLEObject Type="Embed" ShapeID="对象_x0020_134" DrawAspect="Content" ObjectID="_1678081908"> <o:WordFieldCodes>\* MERGEFORMAT</o:WordFieldCodes> </o:OLEObject> <![endif]><![endif]--> <!--[if !vml]--><span style="mso-ignore:vglayout;position: absolute;z-index:251656192;left:0px;margin-left:72px;margin-top:37px; width:182px;height:163px"><img width="182" height="163" v:shapes="组合_x0020_132 文本框_x0020_133 对象_x0020_134" src="http://wljy.whut.edu.cn:80/uploadfiles/word/DLYL22.files/image043.png"></span> <!--[endif]--><span lang="EN-US" style="font-family:黑体"> <!--[if gte vml 1]><v:shape id="图片_x0020_166" o:spid="_x0000_i1045" type="#_x0000_t75" style='width:410.25pt;height:34.5pt'> <v:imagedata src="DLYL22.files/image044.png" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="547" height="46" v:shapes="图片_x0020_166" src="http://wljy.whut.edu.cn:80/uploadfiles/word/DLYL22.files/image045.jpg"> <!--[endif]--> <o:p></o:p></span></p> <p class="MsoNormal" style="mso-pagination:widow-orphan"><span lang="EN-US" style="font-family:黑体"> <o:p> </o:p></span></p> <p class="MsoNormal" style="mso-pagination:widow-orphan"><span lang="EN-US" style="font-family:黑体"> <o:p> </o:p></span></p> <p class="MsoNormal" style="mso-pagination:widow-orphan"><span lang="EN-US" style="font-family:黑体"> <o:p> </o:p></span></p> <p class="MsoNormal" style="mso-pagination:widow-orphan"><span lang="EN-US" style="font-family:黑体"> <o:p> </o:p></span></p> <p class="MsoNormal" style="mso-pagination:widow-orphan"><span lang="EN-US" style="font-family:黑体"> <o:p> </o:p></span></p> <p class="MsoNormal" style="mso-pagination:widow-orphan"><span lang="EN-US" style="font-family:黑体"> <o:p> </o:p></span></p> <p class="MsoNormal" style="mso-pagination:widow-orphan"><span lang="EN-US" style="font-family:黑体"> <o:p> </o:p></span></p>
- 2022-09-12 [单选] <p class="MsoNormal" style="line-height:18.0pt;mso-line-height-rule:exactly; layout-grid-mode:char">38、<span style="font-family:黑体">正弦交流电路中，负载上获得最大功率的条件是（<span lang="EN-US"><span style="mso-spacerun:yes"> </span><span style="mso-spacerun:yes"> </span><span style="mso-spacerun:yes"> </span></span>）<span lang="EN-US"> <o:p></o:p></span></span></p> <p class="MsoNormal" style="mso-pagination:widow-orphan"><span lang="EN-US" style="mso-bidi-font-size:10.5pt;font-family:黑体;mso-font-kerning:0pt"> <o:p> </o:p></span></p>
- 2022-09-12 [单选] <p class="MsoNormal" style="line-height:18.0pt;mso-line-height-rule:exactly">24、<i style="mso-bidi-font-style:normal"><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;font-family:黑体">R</span></i><span style="mso-bidi-font-size:10.5pt; font-family:黑体">、<i style="mso-bidi-font-style:normal"><span lang="EN-US">L</span></i>、<i style="mso-bidi-font-style:normal"><span lang="EN-US">C</span></i>串联电路中，当电路复阻抗的虚部等于零时，电路呈<u> <span lang="EN-US"><span style="mso-spacerun:yes"> </span></span></u>。（<span lang="EN-US"><span style="mso-spacerun:yes"> </span></span>）<span lang="EN-US"> <o:p></o:p></span></span></p> <p class="MsoNormal" style="mso-pagination:widow-orphan"><span lang="EN-US" style="mso-bidi-font-size:10.5pt;font-family:黑体;mso-font-kerning:0pt"> <o:p> </o:p></span></p>
- 2022-09-12 [单选] <p class="MsoNormal" style="line-height:16.0pt">35、<span style="font-family:黑体">三相发电机绕组接成三相四线制，测得三个相电压<i><span lang="EN-US">U</span></i><sub><span lang="EN-US">A</span></sub>＝<i><span lang="EN-US">U</span></i><sub><span lang="EN-US">B</span></sub>＝<i><span lang="EN-US">U</span></i><sub><span lang="EN-US">C</span></sub>＝<span lang="EN-US">220V</span>，三个线电压<i><span lang="EN-US">U</span></i><sub><span lang="EN-US">AB</span></sub>＝<span lang="EN-US">380V</span>，<i><span lang="EN-US">U</span></i><sub><span lang="EN-US">BC</span></sub>＝<i><span lang="EN-US">U</span></i><sub><span lang="EN-US">CA</span></sub>＝<span lang="EN-US">220V</span>，这说明（<span lang="EN-US"><span style="mso-spacerun:yes"> </span><span style="mso-spacerun:yes"> </span><span style="mso-spacerun:yes"> </span></span>）<span lang="EN-US"> <o:p></o:p></span></span></p> <p class="MsoNormal" style="mso-pagination:widow-orphan"><span lang="EN-US" style="mso-bidi-font-size:10.5pt;font-family:黑体;mso-font-kerning:0pt"> <o:p> </o:p></span></p>
- 2022-09-12 [多选] <p class="MsoNormal" style="mso-pagination:widow-orphan">9、<span style="mso-bidi-font-size:10.5pt;font-family:黑体;mso-font-kerning:0pt">电参数式传感器一般采用电桥测量电路，其接法有（ <span lang="EN-US"><span style="mso-spacerun:yes"> </span></span>）等形式。<span lang="EN-US"> <o:p></o:p></span></span></p>
- 2022-09-12 [多选] <p class="MsoNormal" style="mso-pagination:widow-orphan">1、<span style="mso-bidi-font-size:10.5pt;font-family:黑体;mso-font-kerning:0pt">（ <span style="mso-spacerun:yes"> </span>）传感器可以应用在生产流水线上进行计数。<span lang="EN-US"> <o:p></o:p></span></span></p>
- 2022-09-12 [多选] <p class="MsoNormal" align="left" style="margin-right:-2.85pt;text-align:left">8、<span style="mso-bidi-font-size:10.5pt;font-family:黑体">系统误差是指仪表本身或其他原因引起的有规律的误差，是产生测量误差的主要原因。消除系统误差的方法有（ <span lang="EN-US"><span style="mso-spacerun:yes"> </span></span>）从，，对称法和替代法</span><span style="mso-bidi-font-size:10.5pt;font-family:黑体;mso-font-kerning:0pt">。</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;font-family:黑体"> <o:p></o:p></span></p>
- 2022-09-12 [多选] <p class="MsoNormal" style="mso-pagination:widow-orphan">7、<span style="font-size:11.0pt;mso-bidi-font-size:12.0pt;font-family:黑体;mso-bidi-font-family: "Times New Roman"">在温度测量系统中，采用分度表来表示其输入输出关系的传感器有</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;font-family:黑体;mso-font-kerning:0pt"> <o:p></o:p></span></p>