问题:补水箱自动补水的原理是依靠()。A、补水箱安装标高比压力调整器高、利用水位差自动补水B、补水箱内部压力高于压力调整器,利用压力差补水C、依靠氢、氧综合塔的液位差D、依靠氢综合塔的液位高低转换
Thursday, October 12, 2023
Saturday, December 2, 2023
问题:汽轮机盘车状态时,对氢冷发电机的密封油系统运行有何要求,为什么?
Saturday, April 13, 2024
Wednesday, April 26, 2023
问题:为防止压缩空气漏入机内与氢气混合形成爆炸性气体,氢冷发电机的压缩空气管道应有(),当以氢冷方式运行时,可以将其断开。A、活动接头;B、固定接头;C、阀门隔绝;D、堵板。
Saturday, October 21, 2023
Tuesday, September 13, 2022
Friday, September 16, 2022
问题:电解槽的电源采用()。A、直流电;B、交流电;C、交、直流两用;D、交、直流切换。
Saturday, October 21, 2023
Thursday, December 14, 2023
Sunday, March 17, 2024
Tuesday, April 2, 2024
Wednesday, July 12, 2023
问题:为防止可能有爆炸性气体,在制氢设备上敲打时,必须使用()工具。A、钢质;B、铜质;C、铁质;D、铝质。
Tuesday, April 2, 2024
问题:当温度升高时,半导体的电阻将()。A、增大;B、减小;C、不变;D、相等。
Thursday, December 14, 2023
Tuesday, April 2, 2024
Tuesday, August 8, 2023
Friday, December 22, 2023
Tuesday, September 13, 2022
问题:氢冷发电机与空冷发电机一样,机内安装了专门的灭火装置。()
Sunday, September 11, 2022
Wednesday, July 12, 2023