Engineering Recap 4

In what form are metals mined from beneath the earth?

(a)  

If more carbon is present in steel it becomes harder but less..........

• Malleable

• Brittle

• Conductive

• Shiny

Which hard yet brittle metal is used to make metalwork vices and manhole covers?

• Stainless steel

• Copper

• Cast iron

• Aluminium

Mild steel is often used in construction due to its high............

• Tensile strength

• Torsional strength

• Bending strength

• compressive strength

Oxidation in ferrous metals occurs in the form of (a)  

The process used to create usable copper from its raw form is known as........

• Brazing

• Smelting

• Fractional distillation

• Convection

Which steel is used to produce drill bits?

• Mild steel

• Stainless steel

• High-speed steel

Which joining method is used in electronic circuits and copper pipes?

(a)  

Which joining method uses a sacrificial brass rod and relies on capillary action?

• MIG welding

• Soldering

• Brazing

• ARC welding

A metal forge is fueled by (a)