welding (part 1)

сварка давлением

• gas welding

• heat welding

• arc welding

• pressure welding

плавкий материал

• elastic material

• durable material

• fusible material

• conductive material

Match chemical property of aluminium

• soft

• conductivity

• strengh

• machining

What material is an exellent conductor of heat and electricity?

• rubber

• wood

• aluminium

• glass

Stainless steel is an alloy of .....

• iron and carbon

• iron and tin

• iron and zinc

• iron and chromium

What isn't kind of metals?

• lead

• ore

• concrete

• tin

What are the two main groups of processes of welding?

• pressure welding

• resistance welding

• heat welding

• laser welding

What type of the carbon steels is the hardest one?

• low-carbon steel

• medium -carbon steel

• high -carbon steel

• stainless steel