Materials - Metal - JSS1 Basic technology Past Questions and Answers - page 1
Why is understanding the properties and characteristics of metals important?
To appreciate their colour
To identify different metals
To select the appropriate metal
To learn about their historic significance
What are metals valued for in various industries?
Their opacity and transparency
Their toxicity and chemical composition
Their flexibility and their ability to bend
Their strength, conductivity and malleability
What is one common property of metals?
Weak conductivity
High tensile strength
Low strength
Brittleness
What makes metals suitable for electrical wiring and heating systems?
Their transparency
Their low tensile strength
Their brittleness
Their conductivity
What is a key characteristic of metals in terms of shaping and forming?
Rigidity
Flexibility
Opacity
Malleability
Where are metals commonly used in construction?
In glass windows
In plastic bottles
In roofing structures
In wooden furniture
What type of metals are commonly used in construction due to their strength and durability?
Gold and silver
Steel, aluminium and iron
Copper and brass
Platinum and palladium
What role do metals play in manufacturing?
They are used for making paper
They are used in machinery, tools and appliances
They are used for creating plastic bottles
They are primarily used for artistic purposes
Which property of metals makes them suitable for structural applications in construction?
Their low density
Their low tensile strength
Their malleability
Their high tensile strength
What distinguishes metals from other materials?
Their transparency
Their low tensile strength
Their conductivity and malleability
Their brittleness