Composites Practice Quiz

How does matrix-reinforcement enhance the strength and durability of concrete structures?

• By adding steel bars or fibers

• By reducing the amount of concrete used

• By increasing the water content in the concrete

• By removing all reinforcing materials

What are some crucial characteristics required for aerospace materials?

• High strength and low weight

• Resistance to extreme temperatures

• High flexibility

• Low cost

How does Young's Modulus play a role in the structural design of concrete?

Understanding different types of concrete, matrix-reinforcement, and aerospace materials is essential for engineers and designers in construction and ___ industries.

What makes concrete a versatile material in construction projects?

• It is easy to work with

• It is lightweight

• It is transparent

• It is a good conductor of electricity

What is the primary component of concrete that binds the aggregate together?

• Water

• Cement

• Sand

• Gravel

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DOK Level 1: Recall

Which test is used to measure the flexural strength of a material?

• Compression test

• Tensile test

• Three point bend test

• Hardness test

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DOK Level 1: Recall

What does Young's Modulus measure in a material?

• Compressibility

• Stiffness

• Malleability

• Density

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DOK Level 1: Recall

In matrix-reinforcement, what role does the matrix play in a composite material?

• Provides strength

• Acts as a binder

• Increases weight

• Enhances elasticity

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DOK Level 1: Recall

Identify the type of concrete that is known for its fluidity and high flowability.

• High-strength concrete

• Lightweight concrete

• Self-consolidating concrete

• Fiber-reinforced concrete

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DOK Level 2: Skill/Concept