Bicycle History Quiz

What is the main purpose of process annealing in steel treatment?

• To increase the hardness of steel

• To relieve stress from distorted grains

• To improve electrical conductivity

• To enhance magnetic properties

What is the main purpose of extrusion?

• To melt metal

• To shape metal through a die

• To cool metal quickly

• To polish metal

What is the difference between direct and indirect extrusion?

• Direct uses a hammer, indirect does not

• Direct uses a permanent mould, indirect uses a temporary mould

• Direct pushes metal into the die, indirect has the ram and die as one part

• Direct is a cold process, indirect is a hot process

What type of process is impact extrusion?

• Hot forming

• Cold forming

• Sand casting

• Centrifugal casting

What is the main characteristic of powder forming?

• Uses molten metal

• Uses a hammer impact

• Uses powdered materials

• Uses centrifugal force

What is the process called that involves getting metal into powder form and pressing it into a mold?

• Powder forming

• Casting

• Forging

• Extrusion

Which alloy is used extensively for casting?

• Wrought Aluminium

• Casting Aluminium

• High Tensile Brass

• Low Tin Bronze

What property do phosphor bronzes have?

• High ductility

• High tensile strength and corrosion resistance

• Low tensile strength

• High malleability

What is glass defined as?

• A crystalline solid

• An inorganic fusion product

• A metallic alloy

• A polymer

What is high silica glass refined from?

• Soda lime glass

• Borosilicate glass

• Lead glass

• Tempered glass