WorksheetsIntro. to materials selection
Total questions: 20
Worksheet time: 7mins
Which of the following is a composite material?
Copper
Epoxy resin
Concrete
Silicon
Which category of materials typically has high strength, good conductivity, and ductility?
Ceramics
Metals
Polymers
Composites
What is the main drawback of ceramics in structural applications?
Poor corrosion resistance
High cost
Bakelite
Low strength
Which material is commonly used in making electronic chips?
Glass
Polyethylene
Silicon
Bronze
Which one is a smart material that can return to its original shape after deformation?
Carbon fiber
Shape Memory Alloy (SMA)
PVC
Ceramic
Which of the following is not a typical characteristic of polymers?
Lightweight
Low melting point
Brittle at room temperature
Electrical insulator
Glass, alumina, and silicon carbide belong to which category?
Metals
Polymers
Ceramics
Semiconductors
Which bonding type is commonly found in metals?
Covalent bond
Ionic bond
Metallic bond
Hydrogen bond
The matrix in a fiber-reinforced polymer composite is usually made of:
Steel
Epoxy resin
Ceramic
Wood
Which crystal structure has the highest packing efficiency?
Body-Centered Cubic (BCC)
Hexagonal Close-Packed (HCP)
Face-Centered Cubic (FCC)
Simple Cubic (SC)
A crystalline solid is characterized by:
Random atomic arrangement
Repeating atomic patterns
Amorphous structure
High porosity
Which of the following is NOT a typical category of engineering materials?
Metals
Polymers
Alloys
Ceramics
Composites are made by combining two or more materials to enhance overall properties.
True
False
All ceramics are excellent electrical conductors.
True
False
Polymers are generally more heat resistant than metals.
True
False
Semiconductors have electrical conductivity between that of conductors and insulators.
True
False
Which material type is most suitable for making flexible packaging (like plastic bags)?
Metal
Polymer
Ceramic
Composite
Which bonding type is dominant in ceramics?
Metallic
Ionic/Covalent
Hydrogen
Van der Waals
The Miller indices of a plane that cuts the x-axis at 1, y-axis at 2, and z-axis at ∞ are:
(1 2 0)
(2 1 0)
(2 1 ∞)
(2 0 0)
Which of the following represents a family of directions in a cubic crystal?
(111)
{111}
[111]
<111>
