【单选题】which of the following gases is not used as a welding gas?
【单选题】●以下关于黑盒测试的叙述中,不正确的是(61)。
C.
基于软件开发文档,所以也能知道软件实现了文档中的哪些功能
【简答题】Spot welding robot is the auto production line, improve production efficiency and raise the quality of welding car, 1 the labor intensity of a robot. It is characterized by two 2 of robots for spot we...
【单选题】广联达办公大厦给排水工程,明装的给水管管材为
【单选题】Which of the precautions listed should be observed when working with oxy-acetylene welding equipment?
A.
Keep oxygen regulators and valves coated a light film of oil.
B.
Bottles should be labeled air and gas.
C.
Keep cylinders away from exposure to cold temperatures.
D.
Keep gas cylinders supported so that they cannot tip over
【多选题】Why is a WPS so important?
A.
It is the guide for the welder.
B.
It tells the welder how to perform the welding operation during welding production.
C.
It is the guarantee of the welding quality.
D.
It tells the welder what welding process to apply, what kinds of welding consumables to choose, and what welding parameters to select etc.
【判断题】黑盒测试基于软件开发文档,所以也能知道软件实现了文档中的哪些功能。
【单选题】In ___________, the heat required for welding is generated through friction at the interface of the two components being joined. In friction welding, one of the components remains stationary ( 固定的) wh...
A.
Resistance Welding –RW
C.
Friction Stir Welding -FSW