100°
本题考查的知识点是灭火器门（箱盖）开启性能。经测力计实测检查，开启力不大于50；箱门开启角度不小于165°，翻盖式灭火器箱盖开启角度不小于100°。<span style='display: inline !important; float: none; background-color: transparent; color: rgb(0, 0, 0); 微软雅黑","helvetica neue","hiragino sans gb"; font-size: 14px; font-style: normal; font-variant: normal; font-weight: 100; letter-spacing: normal; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; -webkit-text-stroke-width: 0px; white-space: normal; word-spacing: 0px;'>本题答案：。