When hoisting a boat on gravity type davits using an electric motor driven winch，the davit arms should be brought up（）.
1、On a small boat，which knot is best sui
On a small boat，which knot is best suited for attaching a line to the ring of an anchor?（）AClove hitchBFigure-eight knotCFisherman's bendDOverhand knot
2、The type of joint formed when a third
The type of joint formed when a third small plate is riveted over two plates butted together is called a（）.Abutted jointBlap jointCstrap jointDstringer joint
3、Every ship should hoist（）when approach
Every ship should hoist（）when approaching and entering ports.Aits flashing lightBthe ship's nameCits identificationDits signal letter
When run on a machine called client， which of the following commands will mount ...
5、On a multistage flash-type evaporator,
On a multistage flash-type evaporator, the flash chamber is （）Acombined as part of the salt water feed heaterBthe open area above the brine ...
6、When a flash-type evaporator is to be
When a flash-type evaporator is to be secured for an extended period of time, the entire unit should be drained, cleaned, and （）.Acompletely filled with saltwaterBfilled with de-scaling compoundCtightly closed to exclude airDvented to the atmosphere