20春学期《采煤学(一)》在线平时作业2

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<span style="FONT-FAMILY: 宋体">在井田范围内，沿煤层的（<span>&nbsp;），按一定标高把煤层划分为若干个平行于走向的长条部分，每个长条部分称为一个阶段。</span></span>
A:水平方向
B:倾向
C:走向
D:垂直方向

准备巷道的服务范围是（<span lang="EN-US"><span style="mso-spacerun: yes">&nbsp; </span></span>）。
A:一个水平
B:一个采区
C:一个采区或几个区段
D:一个区段<span lang="EN-US"><o:p></o:p></span>

阶段的范围一般较大，需要进行再划分，其划分的方式是（<span lang="EN-US"><span style="mso-spacerun: yes">&nbsp; </span></span>）。<span lang="EN-US"><o:p></o:p></span>
A:阶段划分为采区或带区
B:阶段划分为采区<span class="GramE">或带区或</span>分段
C:阶段划分为采区<span class="GramE">或带区或</span>盘区
D:阶段划分为采区或盘区<span lang="EN-US"><o:p></o:p></span>

在分带内，沿煤层（<span lang="EN-US"><span style="mso-spacerun: yes">&nbsp; </span></span>）布置回采工作面，工作面沿倾向推进。
A:水平方向
B:走向
C:垂直方向
D:倾向

薄煤层的厚度区间是（<span lang="EN-US"><span style="mso-spacerun: yes">&nbsp; </span></span>）。<span lang="EN-US"><o:p></o:p></span>
A:<span lang="EN-US">0.7</span><span style="FONT-FAMILY: 宋体">～</span><st1:chmetcnv style="BACKGROUND-IMAGE: url(res://ietag.dll/#34/#1001); BACKGROUND-REPEAT: repeat-x; BACKGROUND-POSITION: left bottom" tabindex="" unitname="m" sourcevalue="1.3" hasspace="False" negative="False" numbertype="1" tcsc="0" w:st="on"><span lang="EN-US">1.3m</span></st1:chmetcnv>
B:<span lang="EN-US">0.7</span><span style="FONT-FAMILY: 宋体">～</span><st1:chmetcnv style="BACKGROUND-IMAGE: url(res://ietag.dll/#34/#1001); BACKGROUND-REPEAT: repeat-x; BACKGROUND-POSITION: left bottom" tabindex="" unitname="m" sourcevalue="1.4" hasspace="False" negative="False" numbertype="1" tcsc="0" w:st="on"><span lang="EN-US">1.4m</span></st1:chmetcnv>
C:最低可采厚度～<st1:chmetcnv style="BACKGROUND-IMAGE: url(res://ietag.dll/#34/#1001); BACKGROUND-REPEAT: repeat-x; BACKGROUND-POSITION: left bottom" tabindex="" unitname="m" sourcevalue="1.3" hasspace="False" negative="False" numbertype="1" tcsc="0" w:st="on"><span lang="EN-US">1.3m</span></st1:chmetcnv>
D:最低可采厚度～<st1:chmetcnv style="BACKGROUND-IMAGE: url(res://ietag.dll/#34/#1001); BACKGROUND-REPEAT: repeat-x; BACKGROUND-POSITION: left bottom" tabindex="" unitname="m" sourcevalue="1.4" hasspace="False" negative="False" numbertype="1" tcsc="0" w:st="on"><span lang="EN-US">1.4m</span></st1:chmetcnv><span style="FONT-FAMILY: 宋体" lang="EN-US"><o:p></o:p></span>

回采工艺的主要工序是（<span lang="EN-US"><span style="mso-spacerun: yes">&nbsp; </span></span>）。<span lang="EN-US"><o:p></o:p></span>
A:破煤、运煤、支护
B:破煤、装煤、运煤、回柱放顶
C:破煤、装煤、运煤、支护、采空区处理
D:破煤、支护、采空区处理<span lang="EN-US"><o:p></o:p></span>

炮采工作面炮眼深度一般为（<span lang="EN-US"><span style="mso-spacerun: yes">&nbsp; </span></span>）。<span lang="EN-US"><o:p></o:p></span>
A:<span lang="EN-US">&lt;</span><span style="FONT-FAMILY: 宋体">顶梁长度</span>
B:<span lang="EN-US">=</span><span style="FONT-FAMILY: 宋体">顶梁长度</span>
C:<span lang="EN-US">&gt;</span><span style="FONT-FAMILY: 宋体">顶梁长度</span>

<span style="FONT-FAMILY: 宋体">按巷道倾角不同，矿井巷道可分为几类？（ <span style="mso-spacerun: yes">&nbsp;</span>）。<span lang="EN-US"><o:p></o:p></span></span>
A:一类
B:二类
C:三类
D:四类

采煤方法包括二项内容，即（<span lang="EN-US"><span style="mso-spacerun: yes">&nbsp; </span></span>）。
A:采煤系统和回采工艺
B:采煤和顶板管理
C:<span class="GramE">走向长壁和</span>倾斜长壁
D:炮采和机采

浅截式采煤机的截深为（<span lang="EN-US"><span style="mso-spacerun: yes">&nbsp; </span></span>）。<span lang="EN-US"><o:p></o:p></span>
A:<st1:chmetcnv style="BACKGROUND-IMAGE: url(res://ietag.dll/#34/#1001); BACKGROUND-REPEAT: repeat-x; BACKGROUND-POSITION: left bottom" tabindex="" unitname="m" sourcevalue="0.5" hasspace="False" negative="False" numbertype="1" tcsc="0" w:st="on"><span lang="EN-US">0.5m</span></st1:chmetcnv>
B:<st1:chmetcnv style="BACKGROUND-IMAGE: url(res://ietag.dll/#34/#1001); BACKGROUND-REPEAT: repeat-x; BACKGROUND-POSITION: left bottom" tabindex="" unitname="m" sourcevalue="0.7" hasspace="False" negative="False" numbertype="1" tcsc="0" w:st="on">&lt;0.7m</st1:chmetcnv>
C:<span lang="EN-US">&lt;<st1:chmetcnv style="BACKGROUND-IMAGE: url(res://ietag.dll/#34/#1001); BACKGROUND-REPEAT: repeat-x; BACKGROUND-POSITION: left bottom" tabindex="" unitname="m" sourcevalue="0.8" hasspace="False" negative="False" numbertype="1" tcsc="0" w:st="on">0.8m</st1:chmetcnv></span>
D:<span lang="EN-US">&lt;<st1:chmetcnv style="BACKGROUND-IMAGE: url(res://ietag.dll/#34/#1001); BACKGROUND-REPEAT: repeat-x; BACKGROUND-POSITION: left bottom" tabindex="" unitname="m" sourcevalue="1" hasspace="False" negative="False" numbertype="1" tcsc="0" w:st="on">1.0m</st1:chmetcnv></span>

<span style="FONT-FAMILY: 宋体">阶段的走向长度等于井田的走向长度吗？<span lang="EN-US"><o:p></o:p></span></span>
A:错误
B:正确

壁式体系采煤法的主要标志是工作面较长吗？<span lang="EN-US"><o:p></o:p></span>
A:错误
B:正确

<span style="FONT-FAMILY: 宋体">阶段高度&le;水平高度？<span lang="EN-US"><o:p></o:p></span></span>
A:错误
B:正确

炮采工作面炮眼采用单排眼布置，是否适用采高较小的中厚煤层？<span lang="EN-US"><o:p></o:p></span>
A:错误
B:正确

炮采工作面炮眼采用双排眼布置，是否适用<span class="GramE">簿</span>煤层？
A:错误
B:正确

<span class="GramE">三五排控顶是</span>每次回一排支柱吗？<span lang="EN-US"><o:p></o:p></span>
A:错误
B:正确

采场又叫回采工作面吗？
A:错误
B:正确

长壁工作面采煤法中普采工艺产量比重是否最大？
A:错误
B:正确

<span class="GramE">三四排控顶是</span>每次回一排支柱吗？<span lang="EN-US"><o:p></o:p></span>
A:错误
B:正确

<span style="FONT-FAMILY: 宋体">平巷与煤层走向是垂直的吗？<span lang="EN-US"><o:p></o:p></span></span>
A:错误
B:正确