粉体工程_作业二
1.[多选题] <p class="MsoNormal"<span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"若已知粉体层中某处的最大主应力</span<span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"<img width="26" height="29" src="http://wljy.whut.edu.cn:80/uploadfiles/word/ftkxygc03.files/ftkxygc0311517.png"</span<span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"和最小主应力</span<span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"<img width="31" height="32" src="http://wljy.whut.edu.cn:80/uploadfiles/word/ftkxygc03.files/ftkxygc0311524.png"</span<span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"，则该位置的压应力和剪应力关系，可通过在</span<span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"<img width="55" height="25" src="http://wljy.whut.edu.cn:80/uploadfiles/word/ftkxygc03.files/ftkxygc0311545.png"</span<span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;" </span<span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"坐标中作出相应的莫尔圆给出。莫尔圆的圆心坐标为：_______；半径为：_______。</span<span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;" <o:p</o:p</span
奥鹏作业答案可以联系Q Q
A.<p class="MsoNormal" style="display:inline;"<span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"<img width="137" height="67" src="http://wljy.whut.edu.cn:80/uploadfiles/word/ftkxygc03.files/ftkxygc0311593.png"</span<span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;" <o:p </o:p</span
B.<p class="MsoNormal" style="display:inline;"<span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"<img width="134" height="67" src="http://wljy.whut.edu.cn:80/uploadfiles/word/ftkxygc03.files/ftkxygc0311596.png"</span<span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;" <o:p </o:p</span
C.<p class="MsoNormal" style="display:inline;"<span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"<img width="124" height="43" src="http://wljy.whut.edu.cn:80/uploadfiles/word/ftkxygc03.files/ftkxygc0311599.png"</span<span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;" <o:p </o:p</span
D.<p class="MsoNormal" style="display:inline;"<span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"<img width="77" height="60" src="http://wljy.whut.edu.cn:80/uploadfiles/word/ftkxygc03.files/ftkxygc0311602.png"</span<span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;" <o:p </o:p</span
E.<p class="MsoNormal" style="display:inline;"<span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"<img width="80" height="55" src="http://wljy.whut.edu.cn:80/uploadfiles/word/ftkxygc03.files/ftkxygc0311605.png"</span<span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;" <o:p </o:p</span
F.<p class="MsoNormal" style="display:inline;"<span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"<img width="96" height="36" src="http://wljy.whut.edu.cn:80/uploadfiles/word/ftkxygc03.files/ftkxygc0311608.png"</span<span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;" <o:p </o:p</span
正确答案:——BD——
2.[多选题] <p class="MsoNormal" style="margin-top:0.0000pt; margin-right:0.0000pt; margin-bottom:0.0000pt; margin-left:0.0000pt; mso-pagination:none; text-align:justify; text-justify:inter-ideograph; "<span style="mso-spacerun:'yes'; font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "某一粉体粒度分布符合正态分布，其频度分布函数为：</span<span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "<img width="215" height="58" src="http://wljy.whut.edu.cn:80/uploadfiles/word/ftkxygc01.files/ftkxygc0110512.png"</span<span style="mso-spacerun:'yes'; font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "，则其平均粒径</span<span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "<img width="33" height="22" src="http://wljy.whut.edu.cn:80/uploadfiles/word/ftkxygc01.files/ftkxygc0110520.png"</span<span style="mso-spacerun:'yes'; font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "______；标准偏差</span<span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "<img width="28" height="18" src="http://wljy.whut.edu.cn:80/uploadfiles/word/ftkxygc01.files/ftkxygc0110532.png"</span<span style="mso-spacerun:'yes'; font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "______。</span<span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; " <o:p</o:p</span
A.<p class="MsoNormal" style="margin-top:0.0000pt; margin-right:0.0000pt; margin-bottom:0.0000pt; margin-left:0.0000pt; mso-pagination:none; text-align:justify; text-justify:inter-ideograph; " style="display:inline;"<span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "<img width="38" height="30" src="http://wljy.whut.edu.cn:80/uploadfiles/word/ftkxygc01.files/ftkxygc0110542.png"</span<span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; " <o:p </o:p</span
B.<p class="MsoNormal" style="margin-top:0.0000pt; margin-right:0.0000pt; margin-bottom:0.0000pt; margin-left:0.0000pt; mso-pagination:none; text-align:justify; text-justify:inter-ideograph; " style="display:inline;"<span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "<img width="27" height="23" src="http://wljy.whut.edu.cn:80/uploadfiles/word/ftkxygc01.files/ftkxygc0110545.png"</span<span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; " <o:p </o:p</span
C.<p class="MsoNormal" style="margin-top:0.0000pt; margin-right:0.0000pt; margin-bottom:0.0000pt; margin-left:0.0000pt; mso-pagination:none; text-align:justify; text-justify:inter-ideograph; " style="display:inline;"<span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "<img width="35" height="23" src="http://wljy.whut.edu.cn:80/uploadfiles/word/ftkxygc01.files/ftkxygc0110548.png"</span<span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; " <o:p </o:p</span
D.<p class="MsoNormal" style="margin-top:0.0000pt; margin-right:0.0000pt; margin-bottom:0.0000pt; margin-left:0.0000pt; mso-pagination:none; text-align:justify; text-justify:inter-ideograph; " style="display:inline;"<span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "<img width="48" height="49" src="http://wljy.whut.edu.cn:80/uploadfiles/word/ftkxygc01.files/ftkxygc0110551.png"</span<span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; " <o:p </o:p</span
E.<p class="MsoNormal" style="margin-top:0.0000pt; margin-right:0.0000pt; margin-bottom:0.0000pt; margin-left:0.0000pt; mso-pagination:none; text-align:justify; text-justify:inter-ideograph; " style="display:inline;"<span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "<img width="97" height="52" src="http://wljy.whut.edu.cn:80/uploadfiles/word/ftkxygc01.files/ftkxygc0110554.png"</span<span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; " <o:p </o:p</span
F.<p class="MsoNormal" style="margin-top:0.0000pt; margin-right:0.0000pt; margin-bottom:0.0000pt; margin-left:0.0000pt; mso-pagination:none; text-align:justify; text-justify:inter-ideograph; " style="display:inline;"<span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "<img width="88" height="29" src="http://wljy.whut.edu.cn:80/uploadfiles/word/ftkxygc01.files/ftkxygc0110557.png"</span<span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; " <o:p </o:p</span
正确答案:——BF——
3.[多选题] <p class="MsoNormal"<span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"在极限应力状态下，测得某粉体压应力</span<span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"<img width="26" height="26" src="http://wljy.whut.edu.cn:80/uploadfiles/word/ftkxygc03.files/ftkxygc0310965.png"</span<span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"和剪应力</span<span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"<img width="18" height="19" src="http://wljy.whut.edu.cn:80/uploadfiles/word/ftkxygc03.files/ftkxygc0310970.png"</span<span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"符合线性关系：</span<span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"<img width="198" height="39" src="http://wljy.whut.edu.cn:80/uploadfiles/word/ftkxygc03.files/ftkxygc0310978.png"</span<span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"，则该粉体的内摩擦角</span<span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"<img width="45" height="36" src="http://wljy.whut.edu.cn:80/uploadfiles/word/ftkxygc03.files/ftkxygc0310989.png"</span<span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"_______，表观抗张强度</span<span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"<img width="51" height="33" src="http://wljy.whut.edu.cn:80/uploadfiles/word/ftkxygc03.files/ftkxygc0311004.png"</span<span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"_______</span<span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"<img width="52" height="27" src="http://wljy.whut.edu.cn:80/uploadfiles/word/ftkxygc03.files/ftkxygc0311036.png"</span。<span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;" <o:p</o:p</span
A.30º
B.45º
C.60º
D.1.0
E.<p class="MsoNormal" style="display:inline;"<span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"<img width="48" height="48" src="http://wljy.whut.edu.cn:80/uploadfiles/word/ftkxygc03.files/ftkxygc0311061.png"</span<span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;" <o:p </o:p</span
F.<p class="MsoNormal" style="display:inline;"<span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"<img width="72" height="36" src="http://wljy.whut.edu.cn:80/uploadfiles/word/ftkxygc03.files/ftkxygc0311064.png"</span<span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;" <o:p </o:p</span
正确答案:——CF——
4.[多选题] 介质磨剥类超细粉碎设备可选择进行的操作工艺（可多选）：______。
A.干法
B.湿法
C.连续
D.间歇
正确答案:————
5.[判断题] <p class="MsoNormal" align="left" style="text-align:left;mso-pagination:widow-orphan"<span style="font-size:12.0pt;font-family:Microsoft Yahei;mso-bidi-font-family:Microsoft Yahei;color:black; mso-font-kerning:0pt;mso-bidi-language:AR"粉体层极限应力状态下的压应力<span lang="EN-US" <!--[if gte vml 1]<v:shape id="图片_x0020_39" o:spid="_x0000_i1043" type="#_x0000_t75" style='width:12.6pt; height:17.4pt;mso-wrap-style:square;mso-position-horizontal-relative:page; mso-position-vertical-relative:page' <v:imagedata src="FTGCPD.files/image017.png" o:href="http://wljy.whut.edu.cn/uploadfiles/word/ftkxygc02.files/ftkxygc022460.png"/ </v:shape<![endif]-- <!--[if !vml]--<img width="17" height="23" v:shapes="图片_x0020_39" src="http://wljy.whut.edu.cn:80/uploadfiles/word/FTGCPD.files/image017.png" <!--[endif]--</span与剪应力<span lang="EN-US" <!--[if gte vml 1]<v:shape id="图片_x0020_40" o:spid="_x0000_i1044" type="#_x0000_t75" style='width:12.6pt;height:15pt;mso-wrap-style:square; mso-position-horizontal-relative:page;mso-position-vertical-relative:page' <v:imagedata src="FTGCPD.files/image019.png" o:href="http://wljy.whut.edu.cn/uploadfiles/word/ftkxygc02.files/ftkxygc022465.png"/ </v:shape<![endif]-- <!--[if !vml]--<img width="17" height="20" v:shapes="图片_x0020_40" src="http://wljy.whut.edu.cn:80/uploadfiles/word/FTGCPD.files/image019.png" <!--[endif]--</span之间的变化关系，可通过<span lang="EN-US"Jenike</span剪切法实验或三轴压缩法实验获得。</span<span lang="EN-US" style="font-size:12.0pt;mso-font-kerning:0pt" <o:p</o:p</span
A.正确
B.错误
正确答案:————
6.[判断题] 细颗粒回收率是指：实际回收到细粉组中的细颗粒与原料中细颗粒 的质量之比。
A.正确
B.错误
正确答案:————
7.[判断题] 物料干燥过程的三个阶段是指：加热阶段、等速干燥阶段和降速干燥阶段。
A.正确
B.错误
正确答案:————
8.[判断题] <p class="MsoNormal" align="left" style="margin-top:7.8pt;mso-para-margin-top: .5gd;text-align:left;mso-pagination:widow-orphan"<span style="font-size: 12.0pt;font-family:Microsoft Yahei;mso-bidi-font-family:Microsoft Yahei;color:black;mso-font-kerning: 0pt;mso-bidi-language:AR"分级精度不完全度指数：<span lang="EN-US" <!--[if gte vml 1]<v:shape id="图片_x0020_51" o:spid="_x0000_i1049" type="#_x0000_t75" style='width:228pt; height:36pt;mso-wrap-style:square;mso-position-horizontal-relative:page; mso-position-vertical-relative:page' <v:imagedata src="FTGCPD.files/image024.png" o:href="http://wljy.whut.edu.cn/uploadfiles/word/ftkxygc02.files/ftkxygc025516.png"/ </v:shape<![endif]-- <!--[if !vml]--<img width="304" height="48" v:shapes="图片_x0020_51" src="http://wljy.whut.edu.cn:80/uploadfiles/word/FTGCPD.files/image024.png" <!--[endif]--</span中的<span lang="EN-US" <!--[if gte vml 1]<v:shape id="图片_x0020_52" o:spid="_x0000_i1050" type="#_x0000_t75" style='width:33.6pt;height:33.6pt;mso-wrap-style:square; mso-position-horizontal-relative:page;mso-position-vertical-relative:page' <v:imagedata src="FTGCPD.files/image025.png" o:href="http://wljy.whut.edu.cn/uploadfiles/word/ftkxygc02.files/ftkxygc025519.png"/ </v:shape<![endif]-- <!--[if !vml]--<img width="45" height="45" v:shapes="图片_x0020_52" src="http://wljy.whut.edu.cn:80/uploadfiles/word/FTGCPD.files/image025.png" <!--[endif]--</span，表示的是<span lang="EN-US"A</span：部分分级效率为<span lang="EN-US"50%</span所对应的粒径值，还是表示<span lang="EN-US"B</span：通过率为<span lang="EN-US"50%</span所对应的粒径值？<span lang="EN-US"A</span是正确的。</span<span lang="EN-US" style="font-size:12.0pt;mso-font-kerning:0pt" <o:p</o:p</span
A.正确
B.错误
正确答案:————
9.[判断题] 按粉磨机械的施力方式可分为：料床挤压类磨机、机械冲击类磨机和研磨介质类磨机。
A.正确
B.错误
正确答案:————
10.[判断题] <p class="MsoNormal" align="left" style="text-align:left;" <span style="font-size:12.0pt;font-family:Microsoft Yahei;color:black;"粉体的流动函数<spanFF</span被定义为：粉体密实所施加的最大主应力<span <img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204171941_17.png" alt="" /</span与粉体的开放屈服强度<span <img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204172035_834.png" alt="" /</span之比，则<spanFF</span值越小，相应粉体的流动性就会越差。</span<span style="font-size:12.0pt;" </span
A.正确
B.错误
正确答案:————
11.[判断题] 过滤是固液分离的第一步，浓缩是固液分离的第二步。
A.正确
B.错误
正确答案:————
12.[判断题] 滤饼过滤的基本类型包括：加压过滤、压榨过滤、离心过滤和真空过滤。
A.正确
B.错误
正确答案:————
13.[判断题] <p class="MsoNormal" align="left" style="text-align:left;" <img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204171125_687.png" alt="" /
A.正确
B.错误
正确答案:————
14.[判断题] <p class="MsoNormal" align="left" style="margin-top:7.8pt;mso-para-margin-top: .5gd;text-align:left;mso-pagination:widow-orphan"<span style="font-size: 12.0pt;font-family:Microsoft Yahei;mso-bidi-font-family:Microsoft Yahei;color:black;mso-font-kerning: 0pt;mso-bidi-language:AR"若颗粒群的频度分布函数为：<span lang="EN-US" <!--[if gte vml 1]<v:shape id="图片_x0020_82" o:spid="_x0000_i1065" type="#_x0000_t75" style='width:303.6pt; height:66pt;mso-wrap-style:square;mso-position-horizontal-relative:page; mso-position-vertical-relative:page' <v:imagedata src="FTGCPD.files/image039.png" o:href="http://wljy.whut.edu.cn/uploadfiles/word/ftkxygc04.files/ftkxygc041443.png"/ </v:shape<![endif]-- <!--[if !vml]--<img width="405" height="88" v:shapes="图片_x0020_82" src="http://wljy.whut.edu.cn:80/uploadfiles/word/FTGCPD.files/image039.png" <!--[endif]--</span，则其粒度分布符合对数正态分布。</span<span lang="EN-US" style="font-size:12.0pt;mso-font-kerning:0pt" <o:p</o:p</span
A.正确
B.错误
正确答案:————
15.[判断题] 理论和实验均表明，粉碎的能量效率随着施载强度的增加而降低。
A.正确
B.错误
正确答案:————
16.[判断题] 国内目前采用的斗式提升机主要类型分为：环链式、板链式和带式。
A.正确
B.错误
正确答案:————
17.[判断题] 颗粒在液体中的分散原则是，极性表面颗粒易于在非极性液体中分散。
A.正确
B.错误
正确答案:————
18.[判断题] 国内目前采用的斗式提升机主要类型分为：带式、环链式和板链式。
A.正确
B.错误
正确答案:————
19.[判断题] 表征颗粒几何形状的形状因子分为：形状指数和形状系数。
A.正确
B.错误
正确答案:————
20.[判断题] 对分级机的分级效果进行评价的指标有：细颗粒及粗颗粒回收率；综合分级效率（Newton分级效率）；_______。
A.正确
B.错误
正确答案:————
21.[判断题] <p class="MsoNormal"<span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:0.0000pt;"若细颗粒回收率为</span<span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:0.0000pt;"<img width="26" height="32" src="http://wljy.whut.edu.cn:80/uploadfiles/word/ftkxygc06.files/ftkxygc0613877.png"</span<span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:0.0000pt;"，粗颗粒回收率为</span<span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:0.0000pt;"<img width="22" height="32" src="http://wljy.whut.edu.cn:80/uploadfiles/word/ftkxygc06.files/ftkxygc0613886.png"</span<span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:0.0000pt;"，则综合分级效率（</span<span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:0.0000pt;"Newton</span<span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:0.0000pt;"分级效率）</span<span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:0.0000pt;"<img width="32" height="31" src="http://wljy.whut.edu.cn:80/uploadfiles/word/ftkxygc06.files/ftkxygc0613907.png"</span<span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:0.0000pt;"的计算式为：</span<span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:0.0000pt;"<img width="140" height="36" src="http://wljy.whut.edu.cn:80/uploadfiles/word/ftkxygc06.files/ftkxygc0613914.png"</span<span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:0.0000pt;"。</span<span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:0.0000pt;" <o:p</o:p</span
A.正确
B.错误
正确答案:————
22.[判断题] <p class="MsoNormal" align="left" style="text-align:left;" <img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204171315_190.png" alt="" /
A.正确
B.错误
正确答案:————
23.[判断题] 在极限应力状态下，测得某一粉体层压应力σ与剪应力τ的关系符合线性方程：τ＝σ（KPa）。则该粉体层内摩擦角为45o，内聚力为0。
A.正确
B.错误
正确答案:————
24.[判断题] 两个平均粒度相等的颗粒群，其粒度分布完是相同的。
A.正确
B.错误
正确答案:————
25.[判断题] 粉碎的主要施力方式可分为压碎、磨剥、弯折、劈碎和击碎。
A.正确
B.错误
正确答案:————
26.[判断题] 辊压机与球磨机组成的粉磨系统形式有：预粉磨系统、半终粉磨系统、终粉磨系统和联合粉磨系统。
A.正确
B.错误
正确答案:————
27.[判断题] 粉体的摩擦角主要有休止角和内摩擦角，以及壁面摩擦角和运动摩擦角。
A.正确
B.错误
正确答案:————
28.[判断题] 斗式提升机的机型按卸料方式可分为：离心式、重力式、混合式和内卸式。
A.正确
B.错误
正确答案:————
29.[判断题] <p class="MsoNormal" align="left" style="text-align:left;mso-pagination:widow-orphan"<span lang="EN-US" style="font-size:12.0pt;font-family:Microsoft Yahei;mso-bidi-font-family:Microsoft Yahei; color:black;mso-font-kerning:0pt;mso-bidi-language:AR"Rosin-Rammler</span<span style="font-size:12.0pt;font-family:Microsoft Yahei;mso-bidi-font-family:Microsoft Yahei;color:black; mso-font-kerning:0pt;mso-bidi-language:AR"粒度分布方程<span lang="EN-US" <!--[if gte vml 1]<v:shape id="图片_x0020_231" o:spid="_x0000_i1096" type="#_x0000_t75" style='width:193.8pt; height:71.4pt;mso-wrap-style:square;mso-position-horizontal-relative:page; mso-position-vertical-relative:page' <v:imagedata src="FTGCPD.files/image068.png" o:href="http://wljy.whut.edu.cn/uploadfiles/word/ftkxygc06.files/ftkxygc061561.png"/ </v:shape<![endif]-- <!--[if !vml]--<img width="258" height="95" v:shapes="图片_x0020_231" src="http://wljy.whut.edu.cn:80/uploadfiles/word/FTGCPD.files/image068.png" <!--[endif]--</span中，<span lang="EN-US" <!--[if gte vml 1]<v:shape id="图片_x0020_232" o:spid="_x0000_i1097" type="#_x0000_t75" style='width:42.6pt;height:28.2pt;mso-wrap-style:square; mso-position-horizontal-relative:page;mso-position-vertical-relative:page' <v:imagedata src="FTGCPD.files/image069.png" o:href="http://wljy.whut.edu.cn/uploadfiles/word/ftkxygc06.files/ftkxygc061564.png"/ </v:shape<![endif]-- <!--[if !vml]--<img width="57" height="38" v:shapes="图片_x0020_232" src="http://wljy.whut.edu.cn:80/uploadfiles/word/FTGCPD.files/image069.png" <!--[endif]--</span是筛上累积质量百分数。</span<span lang="EN-US" style="font-size:12.0pt;mso-font-kerning:0pt" <o:p</o:p</span
A.正确
B.错误
正确答案:————
30.[判断题] 斗式提升机的机型按卸料方式可分为：离心式、混合式、内卸式和重力式。
A.正确
B.错误
正确答案:————
31.[判断题] 在降速干燥阶段，主要是物料中物理化学结合水哪一项水分的排除。
A.正确
B.错误
正确答案:————
32.[判断题] <p class="MsoNormal" align="left" style="margin-top:7.8pt;mso-para-margin-top: .5gd;text-align:left;mso-pagination:widow-orphan"<span style="font-size: 12.0pt;font-family:Microsoft Yahei;mso-bidi-font-family:Microsoft Yahei;color:black;mso-font-kerning: 0pt;mso-bidi-language:AR"若颗粒群符合对数正态分布，则其频度分布函数为<span lang="EN-US": <!--[if gte vml 1]<v:shape id="图片_x0020_58" o:spid="_x0000_i1052" type="#_x0000_t75" style='width:253.8pt; height:45.6pt;mso-wrap-style:square;mso-position-horizontal-relative:page; mso-position-vertical-relative:page' <v:imagedata src="FTGCPD.files/image027.png" o:href="http://wljy.whut.edu.cn/uploadfiles/word/ftkxygc03.files/ftkxygc031456.png"/ </v:shape<![endif]-- <!--[if !vml]--<img width="338" height="61" v:shapes="图片_x0020_58" src="http://wljy.whut.edu.cn:80/uploadfiles/word/FTGCPD.files/image027.png" <!--[endif]--</span，式中，<span lang="EN-US" <!--[if gte vml 1]<v:shape id="图片_x0020_59" o:spid="_x0000_i1053" type="#_x0000_t75" style='width:24pt;height:28.2pt;mso-wrap-style:square; mso-position-horizontal-relative:page;mso-position-vertical-relative:page' <v:imagedata src="FTGCPD.files/image028.png" o:href="http://wljy.whut.edu.cn/uploadfiles/word/ftkxygc03.files/ftkxygc031461.png"/ </v:shape<![endif]-- <!--[if !vml]--<img width="32" height="38" v:shapes="图片_x0020_59" src="http://wljy.whut.edu.cn:80/uploadfiles/word/FTGCPD.files/image028.png" <!--[endif]--</span称为几何平均径；<span lang="EN-US" <!--[if gte vml 1]<v:shape id="图片_x0020_60" o:spid="_x0000_i1054" type="#_x0000_t75" style='width:21pt;height:26.4pt;mso-wrap-style:square; mso-position-horizontal-relative:page;mso-position-vertical-relative:page' <v:imagedata src="FTGCPD.files/image029.png" o:href="http://wljy.whut.edu.cn/uploadfiles/word/ftkxygc03.files/ftkxygc031472.png"/ </v:shape<![endif]-- <!--[if !vml]--<img width="28" height="35" v:shapes="图片_x0020_60" src="http://wljy.whut.edu.cn:80/uploadfiles/word/FTGCPD.files/image029.png" <!--[endif]--</span称为几何标准偏差。</span<span lang="EN-US" style="font-size:12.0pt;mso-font-kerning:0pt" <o:p</o:p</span
A.正确
B.错误
正确答案:————
33.[判断题] 采用静载荷下测定的抗压、抗拉、抗剪和抗弯强度来表示物料的抗破碎阻力，通常，抗压强度最大，抗拉强度次之，抗弯强度较小，抗剪强度最小。
A.正确 q1 6 4 7 861640
B.错误
正确答案:————
34.[判断题] 助磨剂可明显改善物料在磨机内的分散性与流动状态，从而改善对颗粒的施载条件，以及“软化”颗粒材料的晶格，降低粉碎能耗。
A.正确
B.错误
正确答案:————
35.[判断题] 理想库仑粉体的内聚力较小，通常粒度微细的粉体符合这一规律。
A.正确
B.错误
正确答案:————
36.[判断题] 在非常干燥的空气中，粉体凝聚的主要作用力是范德华力。
A.正确
B.错误
正确答案:————
37.[判断题] <p class="MsoNormal" align="left" style="text-align:left;mso-pagination:widow-orphan"<span style="font-size:12.0pt;font-family:Microsoft Yahei;mso-bidi-font-family:Microsoft Yahei;color:black; mso-font-kerning:0pt;mso-bidi-language:AR"若已知某一颗粒的实际表面积为<span lang="EN-US"A</span，与该实际颗粒同体积的球形颗粒表面积为<span lang="EN-US"B</span，则根据形状指数球形度<span lang="EN-US" <!--[if gte vml 1]<v:shape id="图片_x0020_199" o:spid="_x0000_i1080" type="#_x0000_t75" style='width:19.2pt; height:24pt;mso-wrap-style:square;mso-position-horizontal-relative:page; mso-position-vertical-relative:page' <v:imagedata src="FTGCPD.files/image054.png" o:href="http://wljy.whut.edu.cn/uploadfiles/word/ftkxygc05.files/ftkxygc051515.png"/ </v:shape<![endif]-- <!--[if !vml]--<img width="26" height="32" v:shapes="图片_x0020_199" src="http://wljy.whut.edu.cn:80/uploadfiles/word/FTGCPD.files/image054.png" <!--[endif]--</span的定义，<span lang="EN-US" <!--[if gte vml 1]<v:shape id="图片_x0020_200" o:spid="_x0000_i1081" type="#_x0000_t75" style='width:32.4pt;height:24pt;mso-wrap-style:square; mso-position-horizontal-relative:page;mso-position-vertical-relative:page' <v:imagedata src="FTGCPD.files/image055.png" o:href="http://wljy.whut.edu.cn/uploadfiles/word/ftkxygc05.files/ftkxygc051520.png"/ </v:shape<![endif]-- <!--[if !vml]--<img width="43" height="32" v:shapes="图片_x0020_200" src="http://wljy.whut.edu.cn:80/uploadfiles/word/FTGCPD.files/image055.png" <!--[endif]--B/A</span。</span<span lang="EN-US" style="font-size:12.0pt;mso-font-kerning:0pt" <o:p</o:p</span
A.正确
B.错误
正确答案:————
38.[判断题] 在颗粒表面的尖角、弯折、棱边、台阶等几何突变处的表面能（表面活性）要低于其平面处的表面能。
A.正确
B.错误
正确答案:————
39.[单选题] <p class="MsoNormal" style="mso-pagination:widow-orphan"<span style="font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";color:windowtext"在粉体层最大主应力</span<span lang="EN-US" style="color:windowtext"<span style="position:relative;top:6.0pt;mso-text-raise: -6.0pt" <v:shape id="_x0000_i1029" type="#_x0000_t75" style="width:13.8pt; height:18pt" o
le="" <v:imagedata src="FTGCDX.files/image005.wmz" o:title="" / </v:shape</span <!--[if gte mso 9]<xml <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1029" DrawAspect="Content" ObjectID="_1616487362" </o:OLEObject </xml<![endif]--</span<span style="font-family:Microsoft Yahei;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman";color:windowtext"作用面上，其剪切应力为</span<span lang="EN-US" style="mso-bidi-font-size:10.5pt;color:windowtext;mso-font-kerning: 0pt" <o:p</o:p</span
A.最小
B.最大
C.≠0
D.0
正确答案:————
40.[单选题] 用于提升粉状、粒状及小块、能自由流动的物料，如煤、水泥、生料、矿渣、石灰石等，宜采用哪一种斗式提升机？
A. 重力式卸料
B. 离心式卸料
C. 混合式卸料
正确答案:————
1.[多选题] <p class="MsoNormal"<span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"若已知粉体层中某处的最大主应力</span<span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"<img width="26" height="29" src="http://wljy.whut.edu.cn:80/uploadfiles/word/ftkxygc03.files/ftkxygc0311517.png"</span<span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"和最小主应力</span<span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"<img width="31" height="32" src="http://wljy.whut.edu.cn:80/uploadfiles/word/ftkxygc03.files/ftkxygc0311524.png"</span<span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"，则该位置的压应力和剪应力关系，可通过在</span<span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"<img width="55" height="25" src="http://wljy.whut.edu.cn:80/uploadfiles/word/ftkxygc03.files/ftkxygc0311545.png"</span<span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;" </span<span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"坐标中作出相应的莫尔圆给出。莫尔圆的圆心坐标为：_______；半径为：_______。</span<span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;" <o:p</o:p</span
奥鹏作业答案可以联系Q Q
A.<p class="MsoNormal" style="display:inline;"<span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"<img width="137" height="67" src="http://wljy.whut.edu.cn:80/uploadfiles/word/ftkxygc03.files/ftkxygc0311593.png"</span<span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;" <o:p </o:p</span
B.<p class="MsoNormal" style="display:inline;"<span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"<img width="134" height="67" src="http://wljy.whut.edu.cn:80/uploadfiles/word/ftkxygc03.files/ftkxygc0311596.png"</span<span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;" <o:p </o:p</span
C.<p class="MsoNormal" style="display:inline;"<span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"<img width="124" height="43" src="http://wljy.whut.edu.cn:80/uploadfiles/word/ftkxygc03.files/ftkxygc0311599.png"</span<span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;" <o:p </o:p</span
D.<p class="MsoNormal" style="display:inline;"<span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"<img width="77" height="60" src="http://wljy.whut.edu.cn:80/uploadfiles/word/ftkxygc03.files/ftkxygc0311602.png"</span<span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;" <o:p </o:p</span
E.<p class="MsoNormal" style="display:inline;"<span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"<img width="80" height="55" src="http://wljy.whut.edu.cn:80/uploadfiles/word/ftkxygc03.files/ftkxygc0311605.png"</span<span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;" <o:p </o:p</span
F.<p class="MsoNormal" style="display:inline;"<span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"<img width="96" height="36" src="http://wljy.whut.edu.cn:80/uploadfiles/word/ftkxygc03.files/ftkxygc0311608.png"</span<span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;" <o:p </o:p</span
正确答案:——BD——
2.[多选题] <p class="MsoNormal" style="margin-top:0.0000pt; margin-right:0.0000pt; margin-bottom:0.0000pt; margin-left:0.0000pt; mso-pagination:none; text-align:justify; text-justify:inter-ideograph; "<span style="mso-spacerun:'yes'; font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "某一粉体粒度分布符合正态分布，其频度分布函数为：</span<span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "<img width="215" height="58" src="http://wljy.whut.edu.cn:80/uploadfiles/word/ftkxygc01.files/ftkxygc0110512.png"</span<span style="mso-spacerun:'yes'; font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "，则其平均粒径</span<span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "<img width="33" height="22" src="http://wljy.whut.edu.cn:80/uploadfiles/word/ftkxygc01.files/ftkxygc0110520.png"</span<span style="mso-spacerun:'yes'; font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "______；标准偏差</span<span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "<img width="28" height="18" src="http://wljy.whut.edu.cn:80/uploadfiles/word/ftkxygc01.files/ftkxygc0110532.png"</span<span style="mso-spacerun:'yes'; font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "______。</span<span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; " <o:p</o:p</span
A.<p class="MsoNormal" style="margin-top:0.0000pt; margin-right:0.0000pt; margin-bottom:0.0000pt; margin-left:0.0000pt; mso-pagination:none; text-align:justify; text-justify:inter-ideograph; " style="display:inline;"<span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "<img width="38" height="30" src="http://wljy.whut.edu.cn:80/uploadfiles/word/ftkxygc01.files/ftkxygc0110542.png"</span<span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; " <o:p </o:p</span
B.<p class="MsoNormal" style="margin-top:0.0000pt; margin-right:0.0000pt; margin-bottom:0.0000pt; margin-left:0.0000pt; mso-pagination:none; text-align:justify; text-justify:inter-ideograph; " style="display:inline;"<span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "<img width="27" height="23" src="http://wljy.whut.edu.cn:80/uploadfiles/word/ftkxygc01.files/ftkxygc0110545.png"</span<span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; " <o:p </o:p</span
C.<p class="MsoNormal" style="margin-top:0.0000pt; margin-right:0.0000pt; margin-bottom:0.0000pt; margin-left:0.0000pt; mso-pagination:none; text-align:justify; text-justify:inter-ideograph; " style="display:inline;"<span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "<img width="35" height="23" src="http://wljy.whut.edu.cn:80/uploadfiles/word/ftkxygc01.files/ftkxygc0110548.png"</span<span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; " <o:p </o:p</span
D.<p class="MsoNormal" style="margin-top:0.0000pt; margin-right:0.0000pt; margin-bottom:0.0000pt; margin-left:0.0000pt; mso-pagination:none; text-align:justify; text-justify:inter-ideograph; " style="display:inline;"<span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "<img width="48" height="49" src="http://wljy.whut.edu.cn:80/uploadfiles/word/ftkxygc01.files/ftkxygc0110551.png"</span<span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; " <o:p </o:p</span
E.<p class="MsoNormal" style="margin-top:0.0000pt; margin-right:0.0000pt; margin-bottom:0.0000pt; margin-left:0.0000pt; mso-pagination:none; text-align:justify; text-justify:inter-ideograph; " style="display:inline;"<span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "<img width="97" height="52" src="http://wljy.whut.edu.cn:80/uploadfiles/word/ftkxygc01.files/ftkxygc0110554.png"</span<span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; " <o:p </o:p</span
F.<p class="MsoNormal" style="margin-top:0.0000pt; margin-right:0.0000pt; margin-bottom:0.0000pt; margin-left:0.0000pt; mso-pagination:none; text-align:justify; text-justify:inter-ideograph; " style="display:inline;"<span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "<img width="88" height="29" src="http://wljy.whut.edu.cn:80/uploadfiles/word/ftkxygc01.files/ftkxygc0110557.png"</span<span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; " <o:p </o:p</span
正确答案:——BF——
3.[多选题] <p class="MsoNormal"<span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"在极限应力状态下，测得某粉体压应力</span<span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"<img width="26" height="26" src="http://wljy.whut.edu.cn:80/uploadfiles/word/ftkxygc03.files/ftkxygc0310965.png"</span<span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"和剪应力</span<span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"<img width="18" height="19" src="http://wljy.whut.edu.cn:80/uploadfiles/word/ftkxygc03.files/ftkxygc0310970.png"</span<span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"符合线性关系：</span<span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"<img width="198" height="39" src="http://wljy.whut.edu.cn:80/uploadfiles/word/ftkxygc03.files/ftkxygc0310978.png"</span<span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"，则该粉体的内摩擦角</span<span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"<img width="45" height="36" src="http://wljy.whut.edu.cn:80/uploadfiles/word/ftkxygc03.files/ftkxygc0310989.png"</span<span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"_______，表观抗张强度</span<span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"<img width="51" height="33" src="http://wljy.whut.edu.cn:80/uploadfiles/word/ftkxygc03.files/ftkxygc0311004.png"</span<span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"_______</span<span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"<img width="52" height="27" src="http://wljy.whut.edu.cn:80/uploadfiles/word/ftkxygc03.files/ftkxygc0311036.png"</span。<span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;" <o:p</o:p</span
A.30º
B.45º
C.60º
D.1.0
E.<p class="MsoNormal" style="display:inline;"<span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"<img width="48" height="48" src="http://wljy.whut.edu.cn:80/uploadfiles/word/ftkxygc03.files/ftkxygc0311061.png"</span<span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;" <o:p </o:p</span
F.<p class="MsoNormal" style="display:inline;"<span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;"<img width="72" height="36" src="http://wljy.whut.edu.cn:80/uploadfiles/word/ftkxygc03.files/ftkxygc0311064.png"</span<span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:1.0000pt;" <o:p </o:p</span
正确答案:——CF——
4.[多选题] 介质磨剥类超细粉碎设备可选择进行的操作工艺（可多选）：______。
A.干法
B.湿法
C.连续
D.间歇
正确答案:————
5.[判断题] <p class="MsoNormal" align="left" style="text-align:left;mso-pagination:widow-orphan"<span style="font-size:12.0pt;font-family:Microsoft Yahei;mso-bidi-font-family:Microsoft Yahei;color:black; mso-font-kerning:0pt;mso-bidi-language:AR"粉体层极限应力状态下的压应力<span lang="EN-US" <!--[if gte vml 1]<v:shape id="图片_x0020_39" o:spid="_x0000_i1043" type="#_x0000_t75" style='width:12.6pt; height:17.4pt;mso-wrap-style:square;mso-position-horizontal-relative:page; mso-position-vertical-relative:page' <v:imagedata src="FTGCPD.files/image017.png" o:href="http://wljy.whut.edu.cn/uploadfiles/word/ftkxygc02.files/ftkxygc022460.png"/ </v:shape<![endif]-- <!--[if !vml]--<img width="17" height="23" v:shapes="图片_x0020_39" src="http://wljy.whut.edu.cn:80/uploadfiles/word/FTGCPD.files/image017.png" <!--[endif]--</span与剪应力<span lang="EN-US" <!--[if gte vml 1]<v:shape id="图片_x0020_40" o:spid="_x0000_i1044" type="#_x0000_t75" style='width:12.6pt;height:15pt;mso-wrap-style:square; mso-position-horizontal-relative:page;mso-position-vertical-relative:page' <v:imagedata src="FTGCPD.files/image019.png" o:href="http://wljy.whut.edu.cn/uploadfiles/word/ftkxygc02.files/ftkxygc022465.png"/ </v:shape<![endif]-- <!--[if !vml]--<img width="17" height="20" v:shapes="图片_x0020_40" src="http://wljy.whut.edu.cn:80/uploadfiles/word/FTGCPD.files/image019.png" <!--[endif]--</span之间的变化关系，可通过<span lang="EN-US"Jenike</span剪切法实验或三轴压缩法实验获得。</span<span lang="EN-US" style="font-size:12.0pt;mso-font-kerning:0pt" <o:p</o:p</span
A.正确
B.错误
正确答案:————
6.[判断题] 细颗粒回收率是指：实际回收到细粉组中的细颗粒与原料中细颗粒 的质量之比。
A.正确
B.错误
正确答案:————
7.[判断题] 物料干燥过程的三个阶段是指：加热阶段、等速干燥阶段和降速干燥阶段。
A.正确
B.错误
正确答案:————
8.[判断题] <p class="MsoNormal" align="left" style="margin-top:7.8pt;mso-para-margin-top: .5gd;text-align:left;mso-pagination:widow-orphan"<span style="font-size: 12.0pt;font-family:Microsoft Yahei;mso-bidi-font-family:Microsoft Yahei;color:black;mso-font-kerning: 0pt;mso-bidi-language:AR"分级精度不完全度指数：<span lang="EN-US" <!--[if gte vml 1]<v:shape id="图片_x0020_51" o:spid="_x0000_i1049" type="#_x0000_t75" style='width:228pt; height:36pt;mso-wrap-style:square;mso-position-horizontal-relative:page; mso-position-vertical-relative:page' <v:imagedata src="FTGCPD.files/image024.png" o:href="http://wljy.whut.edu.cn/uploadfiles/word/ftkxygc02.files/ftkxygc025516.png"/ </v:shape<![endif]-- <!--[if !vml]--<img width="304" height="48" v:shapes="图片_x0020_51" src="http://wljy.whut.edu.cn:80/uploadfiles/word/FTGCPD.files/image024.png" <!--[endif]--</span中的<span lang="EN-US" <!--[if gte vml 1]<v:shape id="图片_x0020_52" o:spid="_x0000_i1050" type="#_x0000_t75" style='width:33.6pt;height:33.6pt;mso-wrap-style:square; mso-position-horizontal-relative:page;mso-position-vertical-relative:page' <v:imagedata src="FTGCPD.files/image025.png" o:href="http://wljy.whut.edu.cn/uploadfiles/word/ftkxygc02.files/ftkxygc025519.png"/ </v:shape<![endif]-- <!--[if !vml]--<img width="45" height="45" v:shapes="图片_x0020_52" src="http://wljy.whut.edu.cn:80/uploadfiles/word/FTGCPD.files/image025.png" <!--[endif]--</span，表示的是<span lang="EN-US"A</span：部分分级效率为<span lang="EN-US"50%</span所对应的粒径值，还是表示<span lang="EN-US"B</span：通过率为<span lang="EN-US"50%</span所对应的粒径值？<span lang="EN-US"A</span是正确的。</span<span lang="EN-US" style="font-size:12.0pt;mso-font-kerning:0pt" <o:p</o:p</span
A.正确
B.错误
正确答案:————
9.[判断题] 按粉磨机械的施力方式可分为：料床挤压类磨机、机械冲击类磨机和研磨介质类磨机。
A.正确
B.错误
正确答案:————
10.[判断题] <p class="MsoNormal" align="left" style="text-align:left;" <span style="font-size:12.0pt;font-family:Microsoft Yahei;color:black;"粉体的流动函数<spanFF</span被定义为：粉体密实所施加的最大主应力<span <img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204171941_17.png" alt="" /</span与粉体的开放屈服强度<span <img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204172035_834.png" alt="" /</span之比，则<spanFF</span值越小，相应粉体的流动性就会越差。</span<span style="font-size:12.0pt;" </span
A.正确
B.错误
正确答案:————
11.[判断题] 过滤是固液分离的第一步，浓缩是固液分离的第二步。
A.正确
B.错误
正确答案:————
12.[判断题] 滤饼过滤的基本类型包括：加压过滤、压榨过滤、离心过滤和真空过滤。
A.正确
B.错误
正确答案:————
13.[判断题] <p class="MsoNormal" align="left" style="text-align:left;" <img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204171125_687.png" alt="" /
A.正确
B.错误
正确答案:————
14.[判断题] <p class="MsoNormal" align="left" style="margin-top:7.8pt;mso-para-margin-top: .5gd;text-align:left;mso-pagination:widow-orphan"<span style="font-size: 12.0pt;font-family:Microsoft Yahei;mso-bidi-font-family:Microsoft Yahei;color:black;mso-font-kerning: 0pt;mso-bidi-language:AR"若颗粒群的频度分布函数为：<span lang="EN-US" <!--[if gte vml 1]<v:shape id="图片_x0020_82" o:spid="_x0000_i1065" type="#_x0000_t75" style='width:303.6pt; height:66pt;mso-wrap-style:square;mso-position-horizontal-relative:page; mso-position-vertical-relative:page' <v:imagedata src="FTGCPD.files/image039.png" o:href="http://wljy.whut.edu.cn/uploadfiles/word/ftkxygc04.files/ftkxygc041443.png"/ </v:shape<![endif]-- <!--[if !vml]--<img width="405" height="88" v:shapes="图片_x0020_82" src="http://wljy.whut.edu.cn:80/uploadfiles/word/FTGCPD.files/image039.png" <!--[endif]--</span，则其粒度分布符合对数正态分布。</span<span lang="EN-US" style="font-size:12.0pt;mso-font-kerning:0pt" <o:p</o:p</span
A.正确
B.错误
正确答案:————
15.[判断题] 理论和实验均表明，粉碎的能量效率随着施载强度的增加而降低。
A.正确
B.错误
正确答案:————
16.[判断题] 国内目前采用的斗式提升机主要类型分为：环链式、板链式和带式。
A.正确
B.错误
正确答案:————
17.[判断题] 颗粒在液体中的分散原则是，极性表面颗粒易于在非极性液体中分散。
A.正确
B.错误
正确答案:————
18.[判断题] 国内目前采用的斗式提升机主要类型分为：带式、环链式和板链式。
A.正确
B.错误
正确答案:————
19.[判断题] 表征颗粒几何形状的形状因子分为：形状指数和形状系数。
A.正确
B.错误
正确答案:————
20.[判断题] 对分级机的分级效果进行评价的指标有：细颗粒及粗颗粒回收率；综合分级效率（Newton分级效率）；_______。
A.正确
B.错误
正确答案:————
21.[判断题] <p class="MsoNormal"<span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:0.0000pt;"若细颗粒回收率为</span<span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:0.0000pt;"<img width="26" height="32" src="http://wljy.whut.edu.cn:80/uploadfiles/word/ftkxygc06.files/ftkxygc0613877.png"</span<span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:0.0000pt;"，粗颗粒回收率为</span<span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:0.0000pt;"<img width="22" height="32" src="http://wljy.whut.edu.cn:80/uploadfiles/word/ftkxygc06.files/ftkxygc0613886.png"</span<span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:0.0000pt;"，则综合分级效率（</span<span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:0.0000pt;"Newton</span<span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:0.0000pt;"分级效率）</span<span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:0.0000pt;"<img width="32" height="31" src="http://wljy.whut.edu.cn:80/uploadfiles/word/ftkxygc06.files/ftkxygc0613907.png"</span<span style="mso-spacerun:'yes';font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:0.0000pt;"的计算式为：</span<span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:0.0000pt;"<img width="140" height="36" src="http://wljy.whut.edu.cn:80/uploadfiles/word/ftkxygc06.files/ftkxygc0613914.png"</span<span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:0.0000pt;"。</span<span style="font-family:Microsoft Yahei;font-size:12.0000pt;mso-font-kerning:0.0000pt;" <o:p</o:p</span
A.正确
B.错误
正确答案:————
22.[判断题] <p class="MsoNormal" align="left" style="text-align:left;" <img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204171315_190.png" alt="" /
A.正确
B.错误
正确答案:————
23.[判断题] 在极限应力状态下，测得某一粉体层压应力σ与剪应力τ的关系符合线性方程：τ＝σ（KPa）。则该粉体层内摩擦角为45o，内聚力为0。
A.正确
B.错误
正确答案:————
24.[判断题] 两个平均粒度相等的颗粒群，其粒度分布完是相同的。
A.正确
B.错误
正确答案:————
25.[判断题] 粉碎的主要施力方式可分为压碎、磨剥、弯折、劈碎和击碎。
A.正确
B.错误
正确答案:————
26.[判断题] 辊压机与球磨机组成的粉磨系统形式有：预粉磨系统、半终粉磨系统、终粉磨系统和联合粉磨系统。
A.正确
B.错误
正确答案:————
27.[判断题] 粉体的摩擦角主要有休止角和内摩擦角，以及壁面摩擦角和运动摩擦角。
A.正确
B.错误
正确答案:————
28.[判断题] 斗式提升机的机型按卸料方式可分为：离心式、重力式、混合式和内卸式。
A.正确
B.错误
正确答案:————
29.[判断题] <p class="MsoNormal" align="left" style="text-align:left;mso-pagination:widow-orphan"<span lang="EN-US" style="font-size:12.0pt;font-family:Microsoft Yahei;mso-bidi-font-family:Microsoft Yahei; color:black;mso-font-kerning:0pt;mso-bidi-language:AR"Rosin-Rammler</span<span style="font-size:12.0pt;font-family:Microsoft Yahei;mso-bidi-font-family:Microsoft Yahei;color:black; mso-font-kerning:0pt;mso-bidi-language:AR"粒度分布方程<span lang="EN-US" <!--[if gte vml 1]<v:shape id="图片_x0020_231" o:spid="_x0000_i1096" type="#_x0000_t75" style='width:193.8pt; height:71.4pt;mso-wrap-style:square;mso-position-horizontal-relative:page; mso-position-vertical-relative:page' <v:imagedata src="FTGCPD.files/image068.png" o:href="http://wljy.whut.edu.cn/uploadfiles/word/ftkxygc06.files/ftkxygc061561.png"/ </v:shape<![endif]-- <!--[if !vml]--<img width="258" height="95" v:shapes="图片_x0020_231" src="http://wljy.whut.edu.cn:80/uploadfiles/word/FTGCPD.files/image068.png" <!--[endif]--</span中，<span lang="EN-US" <!--[if gte vml 1]<v:shape id="图片_x0020_232" o:spid="_x0000_i1097" type="#_x0000_t75" style='width:42.6pt;height:28.2pt;mso-wrap-style:square; mso-position-horizontal-relative:page;mso-position-vertical-relative:page' <v:imagedata src="FTGCPD.files/image069.png" o:href="http://wljy.whut.edu.cn/uploadfiles/word/ftkxygc06.files/ftkxygc061564.png"/ </v:shape<![endif]-- <!--[if !vml]--<img width="57" height="38" v:shapes="图片_x0020_232" src="http://wljy.whut.edu.cn:80/uploadfiles/word/FTGCPD.files/image069.png" <!--[endif]--</span是筛上累积质量百分数。</span<span lang="EN-US" style="font-size:12.0pt;mso-font-kerning:0pt" <o:p</o:p</span
A.正确
B.错误
正确答案:————
30.[判断题] 斗式提升机的机型按卸料方式可分为：离心式、混合式、内卸式和重力式。
A.正确
B.错误
正确答案:————
31.[判断题] 在降速干燥阶段，主要是物料中物理化学结合水哪一项水分的排除。
A.正确
B.错误
正确答案:————
32.[判断题] <p class="MsoNormal" align="left" style="margin-top:7.8pt;mso-para-margin-top: .5gd;text-align:left;mso-pagination:widow-orphan"<span style="font-size: 12.0pt;font-family:Microsoft Yahei;mso-bidi-font-family:Microsoft Yahei;color:black;mso-font-kerning: 0pt;mso-bidi-language:AR"若颗粒群符合对数正态分布，则其频度分布函数为<span lang="EN-US": <!--[if gte vml 1]<v:shape id="图片_x0020_58" o:spid="_x0000_i1052" type="#_x0000_t75" style='width:253.8pt; height:45.6pt;mso-wrap-style:square;mso-position-horizontal-relative:page; mso-position-vertical-relative:page' <v:imagedata src="FTGCPD.files/image027.png" o:href="http://wljy.whut.edu.cn/uploadfiles/word/ftkxygc03.files/ftkxygc031456.png"/ </v:shape<![endif]-- <!--[if !vml]--<img width="338" height="61" v:shapes="图片_x0020_58" src="http://wljy.whut.edu.cn:80/uploadfiles/word/FTGCPD.files/image027.png" <!--[endif]--</span，式中，<span lang="EN-US" <!--[if gte vml 1]<v:shape id="图片_x0020_59" o:spid="_x0000_i1053" type="#_x0000_t75" style='width:24pt;height:28.2pt;mso-wrap-style:square; mso-position-horizontal-relative:page;mso-position-vertical-relative:page' <v:imagedata src="FTGCPD.files/image028.png" o:href="http://wljy.whut.edu.cn/uploadfiles/word/ftkxygc03.files/ftkxygc031461.png"/ </v:shape<![endif]-- <!--[if !vml]--<img width="32" height="38" v:shapes="图片_x0020_59" src="http://wljy.whut.edu.cn:80/uploadfiles/word/FTGCPD.files/image028.png" <!--[endif]--</span称为几何平均径；<span lang="EN-US" <!--[if gte vml 1]<v:shape id="图片_x0020_60" o:spid="_x0000_i1054" type="#_x0000_t75" style='width:21pt;height:26.4pt;mso-wrap-style:square; mso-position-horizontal-relative:page;mso-position-vertical-relative:page' <v:imagedata src="FTGCPD.files/image029.png" o:href="http://wljy.whut.edu.cn/uploadfiles/word/ftkxygc03.files/ftkxygc031472.png"/ </v:shape<![endif]-- <!--[if !vml]--<img width="28" height="35" v:shapes="图片_x0020_60" src="http://wljy.whut.edu.cn:80/uploadfiles/word/FTGCPD.files/image029.png" <!--[endif]--</span称为几何标准偏差。</span<span lang="EN-US" style="font-size:12.0pt;mso-font-kerning:0pt" <o:p</o:p</span
A.正确
B.错误
正确答案:————
33.[判断题] 采用静载荷下测定的抗压、抗拉、抗剪和抗弯强度来表示物料的抗破碎阻力，通常，抗压强度最大，抗拉强度次之，抗弯强度较小，抗剪强度最小。
A.正确 q1 6 4 7 861640
B.错误
正确答案:————
34.[判断题] 助磨剂可明显改善物料在磨机内的分散性与流动状态，从而改善对颗粒的施载条件，以及“软化”颗粒材料的晶格，降低粉碎能耗。
A.正确
B.错误
正确答案:————
35.[判断题] 理想库仑粉体的内聚力较小，通常粒度微细的粉体符合这一规律。
A.正确
B.错误
正确答案:————
36.[判断题] 在非常干燥的空气中，粉体凝聚的主要作用力是范德华力。
A.正确
B.错误
正确答案:————
37.[判断题] <p class="MsoNormal" align="left" style="text-align:left;mso-pagination:widow-orphan"<span style="font-size:12.0pt;font-family:Microsoft Yahei;mso-bidi-font-family:Microsoft Yahei;color:black; mso-font-kerning:0pt;mso-bidi-language:AR"若已知某一颗粒的实际表面积为<span lang="EN-US"A</span，与该实际颗粒同体积的球形颗粒表面积为<span lang="EN-US"B</span，则根据形状指数球形度<span lang="EN-US" <!--[if gte vml 1]<v:shape id="图片_x0020_199" o:spid="_x0000_i1080" type="#_x0000_t75" style='width:19.2pt; height:24pt;mso-wrap-style:square;mso-position-horizontal-relative:page; mso-position-vertical-relative:page' <v:imagedata src="FTGCPD.files/image054.png" o:href="http://wljy.whut.edu.cn/uploadfiles/word/ftkxygc05.files/ftkxygc051515.png"/ </v:shape<![endif]-- <!--[if !vml]--<img width="26" height="32" v:shapes="图片_x0020_199" src="http://wljy.whut.edu.cn:80/uploadfiles/word/FTGCPD.files/image054.png" <!--[endif]--</span的定义，<span lang="EN-US" <!--[if gte vml 1]<v:shape id="图片_x0020_200" o:spid="_x0000_i1081" type="#_x0000_t75" style='width:32.4pt;height:24pt;mso-wrap-style:square; mso-position-horizontal-relative:page;mso-position-vertical-relative:page' <v:imagedata src="FTGCPD.files/image055.png" o:href="http://wljy.whut.edu.cn/uploadfiles/word/ftkxygc05.files/ftkxygc051520.png"/ </v:shape<![endif]-- <!--[if !vml]--<img width="43" height="32" v:shapes="图片_x0020_200" src="http://wljy.whut.edu.cn:80/uploadfiles/word/FTGCPD.files/image055.png" <!--[endif]--B/A</span。</span<span lang="EN-US" style="font-size:12.0pt;mso-font-kerning:0pt" <o:p</o:p</span
A.正确
B.错误
正确答案:————
38.[判断题] 在颗粒表面的尖角、弯折、棱边、台阶等几何突变处的表面能（表面活性）要低于其平面处的表面能。
A.正确
B.错误
正确答案:————
39.[单选题] <p class="MsoNormal" style="mso-pagination:widow-orphan"<span style="font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";color:windowtext"在粉体层最大主应力</span<span lang="EN-US" style="color:windowtext"<span style="position:relative;top:6.0pt;mso-text-raise: -6.0pt" <v:shape id="_x0000_i1029" type="#_x0000_t75" style="width:13.8pt; height:18pt" o
le="" <v:imagedata src="FTGCDX.files/image005.wmz" o:title="" / </v:shape</span <!--[if gte mso 9]<xml <o:OLEObject Type="Embed" ProgID="Equation.DSMT4" ShapeID="_x0000_i1029" DrawAspect="Content" ObjectID="_1616487362" </o:OLEObject </xml<![endif]--</span<span style="font-family:Microsoft Yahei;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman";color:windowtext"作用面上，其剪切应力为</span<span lang="EN-US" style="mso-bidi-font-size:10.5pt;color:windowtext;mso-font-kerning: 0pt" <o:p</o:p</spanA.最小
B.最大
C.≠0
D.0
正确答案:————
40.[单选题] 用于提升粉状、粒状及小块、能自由流动的物料，如煤、水泥、生料、矿渣、石灰石等，宜采用哪一种斗式提升机？
A. 重力式卸料
B. 离心式卸料
C. 混合式卸料
正确答案:————
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