19秋学期《安全检测及仪表》在线平时作业1p classMsoNormalstyleMARGIN LEFT18ptTEXT INDENT 18ptmso listl0 level1 lfo1tab sto
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19秋学期《安全检测及仪表》在线平时作业1p classMsoNormalstyleMARGIN LEFT18ptTEXT INDENT 18ptmso listl0 level1 lfo1tab sto
安全检测及仪表 1 单选题 1 <p class="MsoNormal" style="MARGIN-LEFT: 18pt; TEXT-INDENT: -18pt; mso-list: l0 level1 lfo1; tab-stops: list 18.0pt"><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman' mso-hansi-font-family: 'Times New Roman'">含游离二氧化硅在（</span><span lang="EN-US" style="FONT-SIZE: 12pt"><span style="mso-spacerun: yes"> </span></span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman' mso-hansi-font-family: 'Times New Roman'">）以上的岩尘称为硅尘。</span></p> B A <font size="3">5 %<span style="mso-spacerun: yes"> </span></font>B <font size="3">10%<span style="mso-spacerun: yes"> </span></font>C <font size="3">15%<span style="mso-spacerun: yes"> </span></font>D <font size="3">20%</font>2 <p class="MsoNormal" style="MARGIN-LEFT: 18pt; TEXT-INDENT: -18pt; mso-list: l0 level1 lfo1; tab-stops: list 18.0pt"><span lang="EN-US" style="FONT-SIZE: 12pt; mso-fareast-font-family: 'Times New Roman'"><span style="mso-list: Ignore"><span style="FONT: 7pt 'Times New Roman'"> </span></span></span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman' mso-hansi-font-family: 'Times New Roman'">防爆电器温度组别</span><span lang="EN-US" style="FONT-SIZE: 12pt">T<sub>2</sub></span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman' mso-hansi-font-family: 'Times New Roman'">对应的温度上升限度是（</span><span lang="EN-US" style="FONT-SIZE: 12pt"><span style="mso-spacerun: yes"> </span><span style="mso-spacerun: yes"> </span></span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman' mso-hansi-font-family: 'Times New Roman'">）。</span><span lang="EN-US" style="FONT-SIZE: 12pt"><o:p></o:p></span></p><p class="MsoNormal" style="TEXT-INDENT: 24pt; mso-char-indent-count: 2.0"><span lang="EN-US" style="FONT-SIZE: 12pt"><st1:chmetcnv unitname="" sourcevalue="70" hasspace="False" negative="False" numbertype="1" tcsc="0" w:st="on"><span lang="EN-US" style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman' mso-hansi-font-family: 'Times New Roman'"><span lang="EN-US"></span></span></st1:chmetcnv><o:p></o:p></span></p> B A <font size="3">300<span lang="EN-US" style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman' mso-hansi-font-family: 'Times New Roman'"><span lang="EN-US"></span></span><span style="mso-spacerun: yes"> </span></font>B <font size="3">200<span lang="EN-US" style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman' mso-hansi-font-family: 'Times New Roman'"><span lang="EN-US"></span></span></font>C <font size="3">120<span lang="EN-US" style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman' mso-hansi-font-family: 'Times New Roman'"><span lang="EN-US"></span></span><span style="mso-spacerun: yes"> </span></font>D <st1:chmetcnv unitname="" sourcevalue="70" hasspace="False" negative="False" numbertype="1" tcsc="0" w:st="on"><font size="3">70<span lang="EN-US" style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman' mso-hansi-font-family: 'Times New Roman'"><span lang="EN-US"></span></span></font></st1:chmetcnv>3 <p class="MsoNormal" style="MARGIN-LEFT: 18pt; TEXT-INDENT: -18pt; mso-list: l0 level1 lfo1; tab-stops: list 18.0pt"><span lang="EN-US" style="FONT-SIZE: 12pt; mso-fareast-font-family: 'Times New Roman'"><span style="mso-list: Ignore"><span style="FONT: 7pt 'Times New Roman'"> </span></span></span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman' mso-hansi-font-family: 'Times New Roman'">防爆标志为</span><span lang="EN-US" style="FONT-SIZE: 12pt">o</span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman' mso-hansi-font-family: 'Times New Roman'">的防爆仪表指的是（</span><span lang="EN-US" style="FONT-SIZE: 12pt"><span style="mso-spacerun: yes"> </span></span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman' mso-hansi-font-family: 'Times New Roman'">）。</span></p> C A <span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman' mso-hansi-font-family: 'Times New Roman'">隔爆型</span><span lang="EN-US" style="FONT-SIZE: 12pt"><span style="mso-spacerun: yes"> </span></span>B <span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman' mso-hansi-font-family: 'Times New Roman'">防爆通风充气型</span><span lang="EN-US" style="FONT-SIZE: 12pt"><span style="mso-spacerun: yes"> </span></span>C <span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman' mso-hansi-font-family: 'Times New Roman'">防爆充油型</span><span lang="EN-US" style="FONT-SIZE: 12pt"><span style="mso-spacerun: yes"> </span></span>D <span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman' mso-hansi-fon
