Thursday, September 15, 2022
问题:管道换气过程中应有专人负责置换工作,其内容为:()A、通气B、放散C、取样D、检验...
Tuesday, October 3, 2023
Saturday, May 20, 2023
问题:热熔熔接加热板在焊接完成后应放入()加热板支架。...
Thursday, September 15, 2022
问题:空压机起动发动机时,慢车运转10分钟左右,待发动机温度到()度时...
Monday, September 12, 2022
Thursday, September 15, 2022
Thursday, September 15, 2022
Thursday, September 15, 2022
问题:灭火时,()是指用不燃烧的物质包括气体、干粉、泡沫等包围燃烧物,...
Thursday, September 15, 2022
问题:做安全阀手动排气试验时,锅筒内的压力应不小于安全阀起始压力值的(...
Thursday, September 15, 2022
Thursday, September 15, 2022
Saturday, April 20, 2024
Tuesday, May 7, 2024
Thursday, September 15, 2022
问题:钢塑转换管件的外观应光滑整洁,不应有明显划伤、()、鼓包等表面缺...
Thursday, September 15, 2022
问题:带压封堵作业现场应设置安全警戒线,以施工区域为界,区域外()米以内作为隔离区,并在明显的位置设置安全标识,且有人看护。A、10B、15C、20D、25...
Sunday, January 1, 2023
问题:热熔夹具是用于夹持比正常焊机口径()的管道。A、大B、小C、略大D、略小...
Tuesday, March 12, 2024
问题:热水器的点火率在无风状态,连续启动点火不应连续发生()次,且无爆...
Thursday, September 15, 2022
问题:每次吹扫管道的长度不宜超过()m;当管道长度过长时,宜分段吹扫。...
Thursday, September 15, 2022
Sunday, September 11, 2022