密封油压应()氢压,以防空气进入发电机内或氢气充满汽轮机的油系统中引起爆炸。A、接近;B、大于;C、小于;D、等于。...
Monday, February 19, 2024
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
制氢站内必需进行动火作业时,一定要()。A、经有关领导批准;B、使用动火工作票;C、消防队同意;D、做好安全措施。...
Thursday, December 14, 2023
Thursday, December 14, 2023
Friday, December 22, 2023
Wednesday, April 26, 2023
Sunday, March 17, 2024
Wednesday, July 12, 2023
Friday, January 26, 2024
Tuesday, April 2, 2024
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
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
Saturday, December 2, 2023
Saturday, December 2, 2023
Monday, February 19, 2024
Friday, October 21, 2022
Sunday, March 17, 2024
Sunday, March 17, 2024
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
Tuesday, April 2, 2024