20春学期《连铸坯凝固与质量控制》在线平时作业3

adminhan

&nbsp; <p class="MsoNormal" style="MARGIN-LEFT: 36pt; TEXT-INDENT: -36pt; LINE-HEIGHT: 125%; tab-stops: list 36.0pt"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体">连铸坯凝固传热过程中下面哪一种提法是不对的？<span lang="EN-US"><o:p></o:p></span></span></p><p class="MsoNormal" style="MARGIN-LEFT: 39pt; TEXT-INDENT: -18pt; LINE-HEIGHT: 125%; tab-stops: list 39.0pt"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体"><span lang="EN-US"><o:p></o:p></span></span></p><p class="MsoNormal" style="MARGIN-LEFT: 39pt; TEXT-INDENT: -18pt; LINE-HEIGHT: 125%; tab-stops: list 39.0pt"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体"><span lang="EN-US"><o:p></o:p></span></span></p><p class="MsoNormal" style="MARGIN-LEFT: 39pt; TEXT-INDENT: -18pt; LINE-HEIGHT: 125%; tab-stops: list 39.0pt"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体"><span lang="EN-US"><o:p></o:p></span></span></p>
A:<span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体">&nbsp;释放全部的过热量；<span lang="EN-US"><o:p></o:p></span></span>
B:<span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体">释放全部的凝固潜热；<span lang="EN-US"><o:p></o:p></span></span>
C:<p class="MsoNormal" style="MARGIN-LEFT: 39pt; TEXT-INDENT: -18pt; LINE-HEIGHT: 125%; tab-stops: list 39.0pt"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体"><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-font-kerning: 1.0pt; mso-bidi-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">释放全部的显热；</span></span></p>

&nbsp; <p class="MsoNormal" style="LINE-HEIGHT: 125%"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">多相合金的凝固反应不包括下面哪一种反应</span><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体">？<span lang="EN-US"><o:p></o:p></span></span></p><p class="MsoNormal" style="TEXT-INDENT: 18pt; LINE-HEIGHT: 125%; tab-stops: list 39.0pt; mso-char-indent-count: 1.5"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体"><span lang="EN-US"><o:p></o:p></span></span></p><p class="MsoNormal" style="TEXT-INDENT: 18pt; LINE-HEIGHT: 125%; tab-stops: list 39.0pt; mso-char-indent-count: 1.5"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体"><span lang="EN-US"><o:p></o:p></span></span></p><p class="MsoNormal" style="TEXT-INDENT: 18pt; LINE-HEIGHT: 125%; tab-stops: list 39.0pt; mso-char-indent-count: 1.5"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体"><span lang="EN-US"><o:p></o:p></span></span></p><p class="MsoNormal" style="TEXT-INDENT: 18pt; LINE-HEIGHT: 125%; tab-stops: list 39.0pt; mso-char-indent-count: 1.5"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体"><span lang="EN-US"><o:p></o:p></span></span></p>
A:<span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体">&nbsp;偏晶反应；<span lang="EN-US"><o:p></o:p></span></span>
B:<span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体">&nbsp;共晶反应；<span lang="EN-US"><o:p></o:p></span></span>
C:<span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体">&nbsp;匀晶反应；</span>
D:<p class="MsoNormal" style="TEXT-INDENT: 18pt; LINE-HEIGHT: 125%; tab-stops: list 39.0pt; mso-char-indent-count: 1.5"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体">包晶反应；<span lang="EN-US"><o:p></o:p></span></span></p>

&nbsp; <p class="MsoNormal" style="LINE-HEIGHT: 125%; tab-stops: list 39.0pt"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体">高碳钢和低碳钢相比，在结晶器凝固过程中，哪一种钢形成的气隙大一点？</span></p>
A:&nbsp;低碳钢大一点；
B:&nbsp;高碳钢大一点；

&nbsp; <p class="MsoNormal" style="LINE-HEIGHT: 125%; tab-stops: list 39.0pt"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体">一般情况下亚包晶钢连铸时结晶器冷却强度大好？还是小好？<span lang="EN-US"><o:p></o:p></span></span></p><p class="MsoNormal" style="LINE-HEIGHT: 125%; tab-stops: list 39.0pt"><span lang="EN-US" style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体"><span style="mso-spacerun: yes">&nbsp;&nbsp;</span></span></p><p class="MsoNormal" style="LINE-HEIGHT: 125%; tab-stops: list 39.0pt"><span lang="EN-US" style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体"><span style="mso-spacerun: yes">&nbsp;&nbsp; </span></span></p>
A:&nbsp;<span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体">冷却强度大好；<span lang="EN-US"><o:p></o:p></span></span>
B:<span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体">冷却强度小好；</span>

&nbsp; <p class="MsoNormal" style="LINE-HEIGHT: 125%"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体; mso-bidi-font-weight: bold">钢的高温塑性曲线是如何获得的，下面哪一种结论是对的？<span lang="EN-US"><o:p></o:p></span></span></p><p class="MsoNormal" style="LINE-HEIGHT: 125%"><span lang="EN-US" style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体; mso-bidi-font-weight: bold"><span style="mso-spacerun: yes">&nbsp;</span></span></p><p class="MsoNormal" style="LINE-HEIGHT: 125%"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体"><span lang="EN-US" style="mso-bidi-font-weight: bold"><o:p></o:p></span></span></p><p class="MsoNormal" style="LINE-HEIGHT: 125%"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体; mso-bidi-font-weight: bold"><span lang="EN-US"><o:p></o:p></span></span></p>
A:&nbsp; <span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体; mso-bidi-font-weight: bold">是模型计算获得；<span lang="EN-US"><o:p></o:p></span></span>
B:<span lang="EN-US" style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体; mso-bidi-font-weight: bold"><span style="mso-spacerun: yes">&nbsp;&nbsp; </span></span><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体; mso-bidi-font-weight: bold">实验测试获得；</span>
C:<p class="MsoNormal" style="LINE-HEIGHT: 125%"><span lang="EN-US" style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体; mso-bidi-font-weight: bold"><span style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;</span></span><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体; mso-bidi-font-weight: bold"> 经验积累获得；<span lang="EN-US"><o:p></o:p></span></span></p>

&nbsp; <p class="MsoNormal" style="LINE-HEIGHT: 125%"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体; mso-bidi-font-weight: bold">一般来说普碳钢连铸坯的凝固速度比合金钢铸坯的凝固速度要快，结论是<span lang="EN-US"><o:p></o:p></span></span></p><p class="MsoNormal" style="TEXT-INDENT: 36pt; LINE-HEIGHT: 125%; mso-char-indent-count: 3.0"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体; mso-bidi-font-weight: bold">否正确？<span lang="EN-US"><o:p></o:p></span></span></p><p class="MsoNormal" style="MARGIN-LEFT: 36pt; TEXT-INDENT: -18pt; LINE-HEIGHT: 125%; tab-stops: list 36.0pt; mso-list: l0 level1 lfo1"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体; mso-bidi-font-weight: bold"><span lang="EN-US"><o:p></o:p></span></span></p><p class="MsoNormal" style="MARGIN-LEFT: 36pt; TEXT-INDENT: -18pt; LINE-HEIGHT: 125%; tab-stops: list 36.0pt; mso-list: l0 level1 lfo1"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体"><span lang="EN-US" style="mso-bidi-font-weight: bold"><o:p></o:p></span></span></p>
A:<span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体; mso-bidi-font-weight: bold">结论不正确；<span lang="EN-US"><o:p></o:p></span></span>
B:<p class="MsoNormal" style="MARGIN-LEFT: 36pt; TEXT-INDENT: -18pt; LINE-HEIGHT: 125%; tab-stops: list 36.0pt; mso-list: l0 level1 lfo1"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体; mso-bidi-font-weight: bold">结论正确；</span></p>

&nbsp; <p class="MsoNormal" style="MARGIN-LEFT: 36pt; TEXT-INDENT: -36pt; LINE-HEIGHT: 125%; tab-stops: list 36.0pt"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体">连铸坯在结晶器凝固传热过程中下面的传热顺序哪一种分析是正确的?</span><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体">&nbsp;</span></p>
A:钢水&rarr;坯壳&rarr;气隙&rarr;渣层&rarr;结晶器铜壁&rarr;冷却水；
B:钢水&rarr;坯壳&rarr;渣层&rarr;气隙&rarr;结晶器铜壁&rarr;冷却水；

&nbsp; <p class="MsoNormal" style="MARGIN-LEFT: 36pt; TEXT-INDENT: -36pt; LINE-HEIGHT: 125%; tab-stops: list 36.0pt"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体">连铸坯二冷区的长度是指下面哪一种说法？</span><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体"> </span></p>
A:从结晶器出口到进拉矫机的长度；
B:从结晶器出口到铸坯切割点的长度；
C:从结晶器出口到二冷墙的长度；

&nbsp; <p class="MsoNormal" style="LINE-HEIGHT: 125%"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体; mso-bidi-font-weight: bold">两个钢种比较，甲钢种凝固潜热高，乙钢种低，在连铸时哪一个工艺方案<span lang="EN-US"><o:p></o:p></span></span></p><p class="MsoNormal" style="TEXT-INDENT: 36pt; LINE-HEIGHT: 125%; mso-char-indent-count: 3.0"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体; mso-bidi-font-weight: bold">适合甲钢种？<span lang="EN-US"><o:p></o:p></span></span></p><p class="MsoNormal" style="MARGIN-LEFT: 36pt; TEXT-INDENT: -18pt; LINE-HEIGHT: 125%; tab-stops: list 36.0pt; mso-list: l0 level1 lfo1"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体"><span lang="EN-US" style="mso-bidi-font-weight: bold"><o:p></o:p></span></span></p><p class="MsoNormal" style="MARGIN-LEFT: 36pt; TEXT-INDENT: -18pt; LINE-HEIGHT: 125%; tab-stops: list 36.0pt; mso-list: l0 level1 lfo1"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体; mso-bidi-font-weight: bold"><span lang="EN-US"><o:p></o:p></span></span></p><p class="MsoNormal" style="MARGIN-LEFT: 36pt; TEXT-INDENT: -18pt; LINE-HEIGHT: 125%; tab-stops: list 36.0pt; mso-list: l0 level1 lfo1"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体; mso-bidi-font-weight: bold"></span><span lang="EN-US" style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体"><o:p></o:p></span></p>
A:<span lang="EN-US" style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-bidi-font-weight: bold"><span style="mso-list: Ignore"><span style="FONT: 7pt 'Times New Roman'">&nbsp;&nbsp; </span></span></span><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体; mso-bidi-font-weight: bold">低过热度，慢拉速;</span>
B:<span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体; mso-bidi-font-weight: bold">低过热度，快拉速；<span lang="EN-US"><o:p></o:p></span></span>
C:<p class="MsoNormal" style="MARGIN-LEFT: 36pt; TEXT-INDENT: -18pt; LINE-HEIGHT: 125%; tab-stops: list 36.0pt; mso-list: l0 level1 lfo1"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体; mso-bidi-font-weight: bold">高过热度，慢拉速；</span><span lang="EN-US" style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体"><o:p></o:p></span></p>

&nbsp; <p class="MsoNormal" style="MARGIN-LEFT: 36pt; TEXT-INDENT: -36pt; LINE-HEIGHT: 125%; tab-stops: list 36.0pt"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体; mso-bidi-font-weight: bold">金属凝固动态曲线是把凝固体的断面上不同位置的点在不同时间达到相同温度的点的连线，此种叙述是否准确？</span><span lang="EN-US" style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体"><o:p></o:p></span></p><p class="MsoNormal" style="MARGIN-LEFT: 39pt; TEXT-INDENT: -18pt; LINE-HEIGHT: 125%; tab-stops: list 39.0pt"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体; mso-bidi-font-weight: bold"><span lang="EN-US"><o:p></o:p></span></span></p><p class="MsoNormal" style="MARGIN-LEFT: 39pt; TEXT-INDENT: -18pt; LINE-HEIGHT: 125%; tab-stops: list 39.0pt"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体"><span lang="EN-US"><o:p></o:p></span></span></p>
A:<span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体; mso-bidi-font-weight: bold">不准确；<span lang="EN-US"><o:p></o:p></span></span>
B:<p class="MsoNormal" style="MARGIN-LEFT: 39pt; TEXT-INDENT: -18pt; LINE-HEIGHT: 125%; tab-stops: list 39.0pt"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体; mso-bidi-font-weight: bold">准确；</span></p>

<span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体">连铸坯在凝固传热过程中下面那些特点的描述是正确的呢？</span>
A:大传热量
B:在运动中传热
C:在外力作用下传热
D:伴随固态下相变

&nbsp; <p class="MsoNormal" style="LINE-HEIGHT: 125%"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体; mso-bidi-font-weight: bold">在铸坯凝固过程中宏观偏析的产生主要与下列哪些缺陷有密切的联系？<span lang="EN-US"><o:p></o:p></span></span></p><p class="MsoNormal" style="MARGIN-LEFT: 36pt; TEXT-INDENT: -18pt; LINE-HEIGHT: 125%; tab-stops: list 36.0pt; mso-list: l0 level1 lfo1"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体"><span lang="EN-US" style="mso-bidi-font-weight: bold"><o:p></o:p></span></span></p><p class="MsoNormal" style="MARGIN-LEFT: 36pt; TEXT-INDENT: -18pt; LINE-HEIGHT: 125%; tab-stops: list 36.0pt; mso-list: l0 level1 lfo1"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体"><span lang="EN-US" style="mso-bidi-font-weight: bold"><o:p></o:p></span></span></p><p class="MsoNormal" style="MARGIN-LEFT: 36pt; TEXT-INDENT: -18pt; LINE-HEIGHT: 125%; tab-stops: list 36.0pt; mso-list: l0 level1 lfo1"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体"><span lang="EN-US" style="mso-bidi-font-weight: bold"><o:p></o:p></span></span></p><p class="MsoNormal" style="MARGIN-LEFT: 36pt; TEXT-INDENT: -18pt; LINE-HEIGHT: 125%; tab-stops: list 36.0pt; mso-list: l0 level1 lfo1"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体; mso-bidi-font-weight: bold"><span lang="EN-US"><o:p></o:p></span></span></p>
A:<p class="MsoNormal" style="MARGIN-LEFT: 36pt; TEXT-INDENT: -18pt; LINE-HEIGHT: 125%; tab-stops: list 36.0pt; mso-list: l0 level1 lfo1"><span lang="EN-US" style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体; mso-bidi-font-weight: bold; mso-bidi-font-family: 宋体"><span style="mso-list: Ignore"><span style="FONT: 7pt 'Times New Roman'">&nbsp;&nbsp;&nbsp; </span></span></span><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体; mso-bidi-font-weight: bold">与&ldquo;凹陷&rdquo;缺陷有密切联系；<span lang="EN-US"><o:p></o:p></span></span></p>
B:<span lang="EN-US" style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体; mso-bidi-font-weight: bold; mso-bidi-font-family: 宋体"><span style="mso-list: Ignore"><span style="FONT: 7pt 'Times New Roman'">&nbsp; </span></span></span><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体; mso-bidi-font-weight: bold">与疏松缺陷有密切联系；</span>
C:<span lang="EN-US" style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体; mso-bidi-font-weight: bold; mso-bidi-font-family: 宋体"><span style="mso-list: Ignore"><span style="FONT: 7pt 'Times New Roman'">&nbsp;&nbsp;&nbsp; </span></span></span><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体; mso-bidi-font-weight: bold">与缩孔缺陷有密切联系；</span>
D:<span lang="EN-US" style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体; mso-bidi-font-weight: bold; mso-bidi-font-family: 宋体"><span style="mso-list: Ignore"><span style="FONT: 7pt 'Times New Roman'">&nbsp; </span></span></span><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体; mso-bidi-font-weight: bold">与裂纹缺陷有密切联系；</span>

&nbsp; <p class="MsoNormal" style="LINE-HEIGHT: 125%"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体">连铸坯在凝固传热过程中下面那些特点的描述是正确的呢？<span lang="EN-US"><o:p></o:p></span></span></p><p class="MsoNormal" style="TEXT-INDENT: 18pt; LINE-HEIGHT: 125%; tab-stops: list 39.0pt; mso-char-indent-count: 1.5"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体"><span lang="EN-US"><o:p></o:p></span></span></p><p class="MsoNormal" style="TEXT-INDENT: 18pt; LINE-HEIGHT: 125%; tab-stops: list 39.0pt; mso-char-indent-count: 1.5"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体"><span lang="EN-US"><o:p></o:p></span></span></p><p class="MsoNormal" style="TEXT-INDENT: 18pt; LINE-HEIGHT: 125%; tab-stops: list 39.0pt; mso-char-indent-count: 1.5"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体"><span lang="EN-US"><o:p></o:p></span></span></p><p class="MsoNormal" style="TEXT-INDENT: 18pt; LINE-HEIGHT: 125%; tab-stops: list 39.0pt; mso-char-indent-count: 1.5"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体"><span lang="EN-US"><o:p></o:p></span></span></p>
A:<span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体">大传热量；</span>
B:<span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体">在运动中传热；</span>
C:<span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体">在外力作用下传热；</span>
D:<p class="MsoNormal" style="TEXT-INDENT: 18pt; LINE-HEIGHT: 125%; tab-stops: list 39.0pt; mso-char-indent-count: 1.5"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体">伴随固态下相变；</span></p>

&nbsp; <p class="MsoNormal" style="MARGIN-LEFT: 36pt; TEXT-INDENT: -36pt; LINE-HEIGHT: 125%; tab-stops: list 36.0pt"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体">连铸坯二冷区传热方式以下哪几种是正确的？<span lang="EN-US"><o:p></o:p></span></span></p><p class="MsoNormal" style="MARGIN-LEFT: 39pt; TEXT-INDENT: -18pt; LINE-HEIGHT: 125%; tab-stops: list 39.0pt"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体"><span lang="EN-US"><o:p></o:p></span></span></p><p class="MsoNormal" style="MARGIN-LEFT: 39pt; TEXT-INDENT: -18pt; LINE-HEIGHT: 125%; tab-stops: list 39.0pt"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体"><span lang="EN-US"><o:p></o:p></span></span></p><p class="MsoNormal" style="MARGIN-LEFT: 39pt; TEXT-INDENT: -18pt; LINE-HEIGHT: 125%; tab-stops: list 39.0pt"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体"><span lang="EN-US"><o:p></o:p></span></span></p><p class="MsoNormal" style="MARGIN-LEFT: 39pt; TEXT-INDENT: -18pt; LINE-HEIGHT: 125%; tab-stops: list 39.0pt"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体"><span lang="EN-US"><o:p></o:p></span></span></p>
A:<span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体">&nbsp;对流传热方式；</span>
B:<span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体">&nbsp;辐射传热方式；</span>
C:<span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体">&nbsp;传导传热方式；</span>
D:<p class="MsoNormal" style="MARGIN-LEFT: 39pt; TEXT-INDENT: -18pt; LINE-HEIGHT: 125%; tab-stops: list 39.0pt"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体">&nbsp;等离子传热；<span lang="EN-US"><o:p></o:p></span></span></p>

&nbsp; <p class="MsoNormal" style="MARGIN-LEFT: 36pt; TEXT-INDENT: -36pt; LINE-HEIGHT: 125%; tab-stops: list 36.0pt"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体">修正铸坯凝固传热模型中的换热系数的方法下面那几种是不正确的？<span lang="EN-US"><o:p></o:p></span></span></p><p class="MsoNormal" style="MARGIN-LEFT: 39pt; TEXT-INDENT: -18pt; LINE-HEIGHT: 125%; tab-stops: list 39.0pt"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体"><span lang="EN-US"><o:p></o:p></span></span></p><p class="MsoNormal" style="MARGIN-LEFT: 39pt; TEXT-INDENT: -18pt; LINE-HEIGHT: 125%; tab-stops: list 39.0pt"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体"><span lang="EN-US"><o:p></o:p></span></span></p><p class="MsoNormal" style="MARGIN-LEFT: 39pt; TEXT-INDENT: -18pt; LINE-HEIGHT: 125%; tab-stops: list 39.0pt"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体"><span lang="EN-US"><o:p></o:p></span></span></p><p class="MsoNormal" style="MARGIN-LEFT: 39pt; TEXT-INDENT: -18pt; LINE-HEIGHT: 125%; tab-stops: list 39.0pt"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体"><span lang="EN-US"><o:p></o:p></span></span></p><p class="MsoNormal" style="MARGIN-LEFT: 39pt; TEXT-INDENT: -18pt; LINE-HEIGHT: 125%; tab-stops: list 39.0pt"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体"><span lang="EN-US"><o:p></o:p></span></span></p>
A:<span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体">① 铸坯表面温度测量方法；<span lang="EN-US"><o:p></o:p></span></span>
B:<span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体">射钉测量坯壳厚度方法；<span lang="EN-US"><o:p></o:p></span></span>
C:<span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体">铸坯液芯长度测量方法；<span lang="EN-US"><o:p></o:p></span></span>
D:<span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体">铸坯表面硬度测量方法；</span>
E:<p class="MsoNormal" style="MARGIN-LEFT: 39pt; TEXT-INDENT: -18pt; LINE-HEIGHT: 125%; tab-stops: list 39.0pt"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体">&nbsp;铸坯磁性测量方法；</span></p>

&nbsp; <p class="MsoNormal" style="MARGIN-LEFT: 36pt; TEXT-INDENT: -36pt; LINE-HEIGHT: 125%; tab-stops: list 36.0pt"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体">连铸坯中间裂纹的产生对于铸坯质量的影响很大，主要原因是下面哪几种？<span lang="EN-US"><o:p></o:p></span></span></p><p class="MsoNormal" style="MARGIN-LEFT: 39pt; TEXT-INDENT: -18pt; LINE-HEIGHT: 125%; tab-stops: list 39.0pt"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体"><span lang="EN-US"><o:p></o:p></span></span></p><p class="MsoNormal" style="MARGIN-LEFT: 39pt; TEXT-INDENT: -18pt; LINE-HEIGHT: 125%; tab-stops: list 39.0pt"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体"><span lang="EN-US"><o:p></o:p></span></span></p><p class="MsoNormal" style="MARGIN-LEFT: 39pt; TEXT-INDENT: -18pt; LINE-HEIGHT: 125%; tab-stops: list 39.0pt"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体"><span lang="EN-US"><o:p></o:p></span></span></p><p class="MsoNormal" style="MARGIN-LEFT: 39pt; TEXT-INDENT: -18pt; LINE-HEIGHT: 125%; tab-stops: list 39.0pt"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体"><span lang="EN-US"><o:p></o:p></span></span></p>
A:<span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体">&nbsp;二冷某一段的回温过高；</span>
B:<span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体">&nbsp;二冷的设备存在问题；</span>
C:<span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体">&nbsp;拉坯速度过慢；<span lang="EN-US"><o:p></o:p></span></span>
D:<p class="MsoNormal" style="MARGIN-LEFT: 39pt; TEXT-INDENT: -18pt; LINE-HEIGHT: 125%; tab-stops: list 39.0pt"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体">钢水纯净度低；<span lang="EN-US"><o:p></o:p></span></span></p>

&nbsp; <span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体"><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-font-kerning: 1.0pt; mso-bidi-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">当钢种确定结晶器的换热强度下面的分析哪几种是正确的？</span></span><p class="MsoNormal" style="MARGIN-LEFT: 36pt; TEXT-INDENT: -36pt; LINE-HEIGHT: 125%; tab-stops: list 36.0pt"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体"><span lang="EN-US"><o:p></o:p></span></span></p><p class="MsoNormal" style="MARGIN-LEFT: 39pt; TEXT-INDENT: -18pt; LINE-HEIGHT: 125%; tab-stops: list 39.0pt"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体"><span lang="EN-US"><o:p></o:p></span></span></p><p class="MsoNormal" style="MARGIN-LEFT: 39pt; TEXT-INDENT: -18pt; LINE-HEIGHT: 125%; tab-stops: list 39.0pt"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体"><span lang="EN-US"><o:p></o:p></span></span></p><p class="MsoNormal" style="MARGIN-LEFT: 39pt; TEXT-INDENT: -18pt; LINE-HEIGHT: 125%; tab-stops: list 39.0pt"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体"><span lang="EN-US"><o:p></o:p></span></span></p>
A:<span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体">&nbsp;进出水温差越大换热强度越大；</span>
B:<span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体">&nbsp;拉速越快换热强度越大；</span>
C:<span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体">过热度越高换热强度越大；</span>
D:<p class="MsoNormal" style="MARGIN-LEFT: 39pt; TEXT-INDENT: -18pt; LINE-HEIGHT: 125%; tab-stops: list 39.0pt"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体">液面波动约大换热强度越大；<span lang="EN-US"><o:p></o:p></span></span></p>

&nbsp; <p class="MsoNormal" style="MARGIN-LEFT: 36pt; TEXT-INDENT: -36pt; LINE-HEIGHT: 125%; tab-stops: list 36.0pt"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体; mso-bidi-font-weight: bold">碳钢在凝固过程中没有下面的哪些反应</span><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体">？<span lang="EN-US"><o:p></o:p></span></span></p><p class="MsoNormal" style="MARGIN-LEFT: 39pt; TEXT-INDENT: -18pt; LINE-HEIGHT: 125%; tab-stops: list 39.0pt"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体"><span lang="EN-US"><o:p></o:p></span></span></p><p class="MsoNormal" style="MARGIN-LEFT: 39pt; TEXT-INDENT: -18pt; LINE-HEIGHT: 125%; tab-stops: list 39.0pt"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体"><span lang="EN-US"><o:p></o:p></span></span></p><p class="MsoNormal" style="MARGIN-LEFT: 39pt; TEXT-INDENT: -18pt; LINE-HEIGHT: 125%; tab-stops: list 39.0pt"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体"><span lang="EN-US"><o:p></o:p></span></span></p><p class="MsoNormal" style="MARGIN-LEFT: 39pt; TEXT-INDENT: -18pt; LINE-HEIGHT: 125%; tab-stops: list 39.0pt"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体"><span lang="EN-US"><o:p></o:p></span></span></p>
A:<span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体">&nbsp;包晶反应；<span lang="EN-US"><o:p></o:p></span></span>
B:<span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体">&nbsp;共晶反应；</span>
C:<span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体">&nbsp;偏晶反应；<span lang="EN-US"><o:p></o:p></span></span>
D:<p class="MsoNormal" style="MARGIN-LEFT: 39pt; TEXT-INDENT: -18pt; LINE-HEIGHT: 125%; tab-stops: list 39.0pt"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体">共析反应；</span></p>

&nbsp; <p class="MsoNormal" style="MARGIN-LEFT: 36pt; TEXT-INDENT: -36pt; LINE-HEIGHT: 125%; tab-stops: list 36.0pt"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体">连铸坯的凝固方式有下面哪几种？<span lang="EN-US"><o:p></o:p></span></span></p><p class="MsoNormal" style="MARGIN-LEFT: 39pt; TEXT-INDENT: -18pt; LINE-HEIGHT: 125%; tab-stops: list 39.0pt"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体"><span lang="EN-US"><o:p></o:p></span></span></p><p class="MsoNormal" style="MARGIN-LEFT: 39pt; TEXT-INDENT: -18pt; LINE-HEIGHT: 125%; tab-stops: list 39.0pt"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体"><span lang="EN-US"><o:p></o:p></span></span></p><p class="MsoNormal" style="MARGIN-LEFT: 39pt; TEXT-INDENT: -18pt; LINE-HEIGHT: 125%; tab-stops: list 39.0pt"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体"><span lang="EN-US"><o:p></o:p></span></span></p><p class="MsoNormal" style="MARGIN-LEFT: 39pt; TEXT-INDENT: -18pt; LINE-HEIGHT: 125%; tab-stops: list 39.0pt"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体"><span lang="EN-US"><o:p></o:p></span></span></p>
A:<span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体">逐层凝固方式；</span>
B:<span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体">快速凝固方式；<span lang="EN-US"><o:p></o:p></span></span>
C:<span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体">中间凝固方式；</span>
D:<p class="MsoNormal" style="MARGIN-LEFT: 39pt; TEXT-INDENT: -18pt; LINE-HEIGHT: 125%; tab-stops: list 39.0pt"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体">体积凝固方式；</span></p>

&nbsp; <p class="MsoNormal" style="MARGIN-LEFT: 36pt; TEXT-INDENT: -36pt; LINE-HEIGHT: 125%; tab-stops: list 36.0pt; mso-list: l0 level1 lfo1"><span lang="EN-US" style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; mso-bidi-font-family: 宋体"><span style="mso-list: Ignore"><span style="FONT: 7pt 'Times New Roman'">&nbsp;&nbsp;&nbsp; </span></span></span><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">现阶段连铸用电磁搅拌器的供电方式有下面哪几种提法是对的？</span><span lang="EN-US" style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%"><o:p></o:p></span></p><p class="MsoNormal" style="MARGIN-LEFT: 36pt; TEXT-INDENT: -18pt; LINE-HEIGHT: 125%; tab-stops: list 36.0pt; mso-list: l1 level1 lfo2"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体"><span lang="EN-US"><o:p></o:p></span></span></p><p class="MsoNormal" style="MARGIN-LEFT: 36pt; TEXT-INDENT: -18pt; LINE-HEIGHT: 125%; tab-stops: list 36.0pt; mso-list: l1 level1 lfo2"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体"></span><span lang="EN-US" style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%"><o:p></o:p></span></p><p class="MsoNormal" style="MARGIN-LEFT: 36pt; TEXT-INDENT: -18pt; LINE-HEIGHT: 125%; tab-stops: list 36.0pt; mso-list: l1 level1 lfo2"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体"></span><span lang="EN-US" style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%"><o:p></o:p></span></p><p class="MsoNormal" style="MARGIN-LEFT: 36pt; TEXT-INDENT: -18pt; LINE-HEIGHT: 125%; tab-stops: list 36.0pt; mso-list: l1 level1 lfo2"><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体"></span><span lang="EN-US" style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%"><o:p></o:p></span></p>
A:<span lang="EN-US" style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体"><span style="mso-list: Ignore"><span style="FONT: 7pt 'Times New Roman'">&nbsp; </span></span></span><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体">交流供电；</span>
B:<span lang="EN-US" style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; mso-fareast-font-family: 'Times New Roman'"><span style="mso-list: Ignore"><span style="FONT: 7pt 'Times New Roman'">&nbsp;&nbsp;&nbsp; </span></span></span><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体">低频供电；</span>
C:<span lang="EN-US" style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; mso-fareast-font-family: 'Times New Roman'"><span style="mso-list: Ignore"><span style="FONT: 7pt 'Times New Roman'">&nbsp;&nbsp; </span></span></span><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体">直流供电；</span>
D:<p class="MsoNormal" style="MARGIN-LEFT: 36pt; TEXT-INDENT: -18pt; LINE-HEIGHT: 125%; tab-stops: list 36.0pt; mso-list: l1 level1 lfo2"><span lang="EN-US" style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; mso-fareast-font-family: 'Times New Roman'"><span style="mso-list: Ignore"><span style="FONT: 7pt 'Times New Roman'">&nbsp;&nbsp;&nbsp; </span></span></span><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 125%; FONT-FAMILY: 宋体">三相供电；</span></p>