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Worksheets1. AL Materials
Total questions: 35
Worksheet time: 48mins
Which of the following is a hardwood?
Pine
Oak
Cedar
Redwood
What is a characteristic of softwoods?
Generally denser than hardwoods
More expensive than hardwoods
Typically easier to work with
All of the above
Which non-ferrous metal is known for its corrosion resistance?
Mild Steel
Cast Iron
Aluminium
Carbon Steel
Polyethylene is classified as which type of polymer?
Thermosetting
Thermoplastic
Elastomer
Composite
Which of the following is NOT a type of composite material?
Glass Fibre Reinforced Plastic (GRP)
Carbon Fibre Reinforced Plastic (CFRP)
Polypropylene
Medium Density Fibre Board (MDF)
Urea formaldehyde is an example of which type of material?
Thermoplastic
Thermosetting Plastic
Elastomer
Composite
Which of the following is a natural fiber?
Nylon
Polyester
Wool
Polypropylene
Thermo-chromic materials change color in response to:
Electric current
Temperature changes
Light exposure
Pressure changes
Which of the following materials is used in liquid crystal displays (LCD)?
Thermo-ceramics
Reactive glass
Shape Memory Alloys
Glass Fibre
What is the primary advantage of using composites in construction?
Low cost
High strength-to-weight ratio
Non-toxic
Easy to recycle
T/F: All metals are susceptible to corrosion.
T/F: Polyvinyl chloride (PVC) is a type of thermoplastic.
T/F: Natural fibers are generally more durable than manmade fibers.
T/F: MDF is a type of softwood material.
T/F: Quantum tunneling composites can conduct electricity without traditional conductors.
The main advantage of using hardwoods like mahogany is their (a) .
_____________ is the process of combining two or more materials to create a composite.
The advantage of thermoplastics over thermosetting plastics is that they can be (a) .
(a) is a common application of elastomers.
The primary characteristic of ferrous metals is their (a) .
Match the material to its corresponding application:
Describe the differences between ferrous and non-ferrous metals.
Explain the advantages and disadvantages of using thermosetting plastics in manufacturing.
Discuss the properties that make natural fibers a popular choice for textiles.
How do shape memory alloys (SMA) work? Provide an example of their application.
What are the environmental considerations when using composite materials?
Which of the following is a common use for plywood?
Insulation
Waterproofing
Electrical wiring
Furniture making
What type of material is commonly used for 3D printing?
Concrete
Steel
Glass
PLA
Which of the following is a characteristic of thermosetting plastics?
Is soluble in water
Can be remolded
Hardens permanently when set
Is flexible at high temperatures
Which of the following is a synthetic fiber?
Polyester
Cotton
Silk
Rayon
What is the main characteristic of elastomers?
High melting point
Elasticity
High rigidity
Low thermal conductivity
Which of the following materials is commonly used for insulation?
Steel
Aluminum
Concrete
Fiberglass
Which metal is often used for electrical wiring due to its excellent conductivity?
Iron
Copper
Aluminium
Lead
What type of thermoplastic is commonly used in packaging materials?
Polypropylene
Polystyrene
All of the above
Polyethylene
Which of the following is a characteristic of composite materials?
Homogeneous structure
High tensile strength
Low thermal resistance
Single material composition
