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WorksheetsMetals and Welding Quiz
Total questions: 20
Worksheet time: 10mins
What raw material is iron primarily extracted from?
Bauxite
Limestone
Iron Ore
Coal
What is the main purpose of a blast furnace?
To mix alloys
To extract iron from ore
To cool molten metals
To make stainless steel
What is “coke” used for in iron extraction?
A cooling agent
A binder for ores
A source of heat and carbon
A cleaning chemical
Which of the following is a ferrous metal?
Copper
Aluminium
Mild Steel
Brass
Why is stainless steel resistant to rust?
It contains zinc
It’s coated with paint
It contains chromium
It is polished regularly
What’s the difference between ferrous and non-ferrous metals?
Ferrous metals are soft
Ferrous metals contain iron
Non-ferrous metals are magnetic
Non-ferrous metals are always heavier
Which of the following is a non-ferrous metal?
Mild steel
Tool steel
Cast iron
Copper
What metal is known for its excellent electrical conductivity?
Stainless steel
Aluminium
Copper
Zinc
Why is mild steel used in firepit construction?
It is lightweight and corrosion-proof
It is soft and easily melted
It is strong, affordable, and easy to weld
It cannot rust
What is aluminium known for?
High density and strength
Being magnetic
Lightweight and corrosion resistance
Poor heat resistance
Why can welding aluminium be tricky?
It rusts too quickly
It conducts heat too easily
It's too thick
It's magnetic
Which welding method is best suited to mild steel?
TIG
Stick
MIG
Brazing
Which shielding gas is typically used in MIG welding?
Oxygen
Carbon monoxide
Argon
Nitrogen
What is a key feature of TIG welding?
Uses flux-coated rods
Uses a tungsten electrode
Does not require shielding gas
Requires hammering the joint
Which of the following is the hardest to weld?
Mild steel
Copper
Stainless steel
Aluminium
Why is MIG welding popular in workshops?
It doesn’t require electricity
It's slow but accurate
It's fast and easy to learn
It doesn’t need gas
Which metal is most commonly used in building construction beams?
Copper
Aluminium
Mild Steel
Zinc
What gives stainless steel its shiny, smooth appearance?
Polishing
Chromium content
High nickel levels
Cold rolling process
What is one way to protect structural steel from rust?
Leave it outside
Paint or galvanise it
Soak it in water
Cover it with wood
What does “ductile” mean in metals?
Can rust easily
Can conduct electricity
Can be stretched without breaking
Has a shiny finish
