问题:汽轮机正常运行时,一般规定最低油位线,应不低于油泵吸入口以上()...
Saturday, September 17, 2022
问题:汽轮机刚一打闸解列后的阶段中,转速下降很快,这是因为刚打闸后,汽...
Saturday, September 17, 2022
问题:按轮面的断面型线不同,可把叶轮分为如下类型()。...
Sunday, September 11, 2022
问题:同一液体在其他条件相同的情况下,被加热时的对流换热系数()被冷却时的对流换热系数。A、大于B、小于C、等于D、差不多...
Monday, December 5, 2022
问题:热态起动汽轮机时先抽真空后送轴封汽的危害有()。...
Tuesday, September 13, 2022
Sunday, December 17, 2023
Saturday, September 17, 2022
Saturday, September 17, 2022
Tuesday, January 17, 2023
问题:一般机组停机后排汽缸的相对湿度高达()以上,属于严重腐蚀范围。A、15%B、45%C、85%...
Tuesday, August 8, 2023
Saturday, September 17, 2022
问题:螺杆式压缩机空气-润滑油的混合气体从压缩机排出后,进入分离系统,...
Saturday, September 17, 2022
Saturday, September 17, 2022
问题:把汽轮机横销和纵销在后汽缸的交汇点称为汽机的()。...
Tuesday, September 13, 2022
问题:支承刚度下降通常是由于()之间的连接松动造成的。...
Saturday, September 17, 2022
Tuesday, September 13, 2022
问题:汽轮机低油压保护应在()投入。A、带部分负荷后B、定速后C、冲转前...
Tuesday, April 25, 2023
问题:移动式电动工具的电源线引线长度一般不应超过()米....
Saturday, September 17, 2022
问题:汽轮机大修后,润滑油泵连续运行8h即可联系检修人员拆除润滑油油管...
Saturday, September 17, 2022
Tuesday, September 13, 2022