Thursday, September 15, 2022
下列属于泵的串联应用实例的是()。A、某个引水管向高山顶引水,多泵运行B、灰浆泵将灰浆打到灰场C、给水泵的润滑油泵D、冲灰水泵...
Sunday, November 20, 2022
Friday, November 10, 2023
热电联产机组的锅炉在发生事故时不仅会使发电机组受到影响,而且对()造成相当大的经济损失。A、汽轮机B、发电机C、辅助岗位D、其它用汽户...
Sunday, October 15, 2023
Friday, September 1, 2023
按烟气和蒸汽流向,对流过热器有哪几种流动方式?各有何特点?...
Friday, June 16, 2023
Thursday, September 15, 2022
当大轴弯曲严重,用电动盘车不动时,不得用()强行盘车。A、搬钩子B、手C、杠子D、天车...
Tuesday, January 2, 2024
Monday, September 12, 2022
母管制锅炉的组成是()。A、单机单炉B、一炉多机C、一机多炉D、多机多炉...
Monday, January 1, 2024
多级泵轴向推力平衡方法不包括()。A、叶轮对称布置B、平衡盘装置法C、平衡鼓和双向止推轴承法D、轴端泄漏法...
Friday, June 16, 2023
Friday, November 10, 2023
Monday, September 12, 2022
各种阀门中流动阻力最大的是()。A、截止阀B、调节阀C、闸阀D、逆止阀...
Saturday, March 16, 2024
焊条牌号“J507”,其中“7”表示焊条药皮类型为()。...
Thursday, September 15, 2022
根据安全规程规定:投入贮气罐前必须检查贮气罐的()和压力表。...
Monday, September 12, 2022
膜式水冷壁不易结渣,(),漏风率少,炉墙轻等优点。A、散热性能好B、吸热能力差C、散热性能差D、吸热能力高...
Friday, May 19, 2023
Monday, September 11, 2023
T表示开氏温度,t表示摄氏温度,则t=450度时,T=()....
Wednesday, February 7, 2024
锅炉叫水的方法主要是利用()的开关来实现。A、汽连通阀B、水连通阀C、放水阀D、汽连通阀、水连通阀和放水阀...
Friday, November 10, 2023