1: Gilbert Arenas was born on January 6, 1982 in Tampa, Florida. His father played college football at the University of Miami. In 1984, the pair moved to Los Angeles, California where Gilbert's father was an actor in commercials and soap o...
1: An employer has several choices he can consider when he wants to hire a new employee. First, he may look within his own company. But if none of the present employees are suitable for the position, he will have to look outside the company...
10.??对于低气油比含水油井,可采用在泵下加深尾管的方法降低流压,以提高油井产量。 A. 错误 B. 正确 ...
6.??扭矩因数是悬点载荷在电机轴上造成的扭矩与悬点载荷的比值。 A. 错误 B. 正确 ...
2.??如果上冲程电流峰值大于下冲程电流峰值,说明平衡不够应该增加平衡半径或平衡块重量。 A. 错误 B. 正确 ...
8.??油井常规酸化的管柱深度应下到( ) A. 油层顶部 B. 油层中部 C. 油层底部 D. 油层底部以下5~10m ...
4.??注水泵的效率是泵的( )之比。 A. 电压与电流 B. 排量与扬程 C. 有效功率与轴功率 D. 有效功率与无效功率 ...
10.??为了保证自喷井生产的稳定性,对有油嘴系统的设计要求嘴流必须达到临界流动条件。 A. 错误 B. 正确 ...
6.??采用气举阀的目的是降低气举启动压力和工作压力之差,减少投入成本。 A. 错误 B. 正确 ...
2.??对于正常生产的自喷井而言,只要油嘴直径保持不变,油井产量也不会发生变化。 A. 错误 B. 正确 ...