1. [单选题]在第一次上紧贯穿螺栓时，由于螺栓各承压部分产生塑性变形，使一部分(part)预紧力丧失，解决的办法是上紧前( )。
A. 先上紧螺栓，然后再旋松
B. 将螺栓和承压面彻底清洁干净
C. 在螺栓和承压面之间涂以适当的润滑剂
D. 将螺栓和承压面彻底清洁干净和在螺栓和承压面之间涂以适当的润滑剂
2. [单选题]Which of the following is operated from the main engine room console on an automated vessel?
A. Fire pump and lube oil pump
B. Lube oil pump and distilling plant
C. Distilling plant and shaft alley door
D. Shaft alley door and fixed CO2 release
