NEW
Font size
WorksheetsMaterials and Their Engineering Properties
Total questions: 15
Worksheet time: 8mins
Which of the following is a characteristic of stainless steel?
High electrical conductivity
Corrosion resistance
Low thermal stability
High acoustic absorption
What is the primary difference between thermoplastic and thermosetting plastics?
Thermoplastics can be remoulded, thermosetting plastics cannot
Thermosetting plastics are magnetic, thermoplastics are not
Thermoplastics are more rigid than thermosetting plastics
Thermosetting plastics have higher electrical conductivity
Which of the following materials is non-ferrous?
Cast iron
Low carbon steel
Aluminium
High carbon steel
What is the purpose of annealing in heat treatment?
To increase hardness
To improve ductility
To decrease electrical conductivity
To increase magnetic properties
Which type of corrosion involves the loss of metal ions from the surface?
Pitting
Intergranular
Galvanic
Leaching
Which reinforcing material is known for its high strength-to-weight ratio?
Glass fibre
Carbon fibre
Aramid fibre
Copper
What is the main advantage of using composites in engineering applications?
High density
Low cost
High strength and low weight
High thermal conductivity
Which of the following is a method to identify ferrous metals?
Colour test
Spark test
Density test
Acoustic test
What is the main characteristic of low alloy steels?
High carbon content
High corrosion resistance
Enhanced mechanical properties
High electrical conductivity
Which of the following is a non-metallic material?
Brass
Bronze
Hard wood
Nickel
What is the effect of normalising on steel?
Increases hardness
Refines grain structure
Increases electrical conductivity
Decreases thermal stability
Which type of defect is considered critical in materials?
Minor
Major
Non-critical
Critical
Which material is known for its excellent thermal conductivity?
Titanium
Copper
Lead
Aramid fibre
What is the primary purpose of tempering in heat treatment?
To increase brittleness
To reduce hardness
To increase ductility
To relieve internal stresses
Which of the following is a characteristic of ceramics?
High electrical conductivity
High thermal expansion
High wear resistance
High ductility
