Thursday, June 8, 2023
问题:关于三相交流异步电动机,采用软启动装置能够()A、减少启动电流B、具有保护功能C、提高功率因数D、增大启动转矩
Thursday, May 9, 2024
Thursday, February 8, 2024
问题:发电企业应对全厂和机组的发电量、发电煤耗率、供电煤耗率、供热量、供热煤耗率等()进行统计、分析和考核。A、运行指标B、宏观指标C、微观指标D、综合经济技术指标
Wednesday, October 18, 2023
问题:火电厂的节能措施有()。A、提高用电设备效率,推广节电技术B、推广多联产技术C、重视节约用水D、优化电力结构
Tuesday, January 23, 2024
Monday, March 18, 2024
问题:若锅炉过量空气系数a值过小,可能造成()。A、烟气中一氧化碳CO气体浓度升高B、烟气中硫化氢H2S气体浓度升高C、煤灰的熔点升高D、引起水冷壁结焦和四管高温腐蚀
Monday, January 9, 2023
Thursday, December 7, 2023
Tuesday, January 23, 2024
Monday, March 18, 2024
问题:在设备制造过程中,发电企业可委托()进行设备的现场监造,保证出厂产品符合设计要求。A、第三方B、监理方C、乙方D、甲方
Monday, March 18, 2024
Wednesday, September 13, 2023