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Materials Science: Properties and Manufacturing Processes

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Questions and Answers

What is the primary goal of extractive metallurgy?

To develop new annealing processes
To extract metals from their ores (correct)
To study the crystal structures of metals
To create alloys with unique properties

What type of arrangement do atoms exhibit in metals?

Ordered atomic arrangements (correct)
Disordered atomic arrangements
Amorphous atomic arrangements
Random atomic arrangements

What is the purpose of annealing in metallurgy?

To reduce the ductility of metals
To lower the conductivity of metals
To relieve internal stresses and enhance properties (correct)
To increase the strength of metals

What is the primary reason for creating alloys?

To enhance specific properties of metals (D) Signup and view all the answers

What is the result of annealing on the microstructure of metals?

It relieves internal stresses and enhances properties (A) Signup and view all the answers

What is the characteristic of metals that allows them to be shaped and molded?

Ductility (A) Signup and view all the answers

What is the primary benefit of fibreglass in terms of its properties?

High strength-to-weight ratio and corrosion resistance (D) Signup and view all the answers

What is the main purpose of alloying in metallurgy?

To enhance the strength and corrosion resistance of a material (B) Signup and view all the answers

What is the characteristic of a material that allows it to return to its original shape and size after deformation?

Elasticity (D) Signup and view all the answers

What is the primary purpose of a phase diagram in materials science?

To graphically represent the relationships between different phases of a material system (B) Signup and view all the answers

Which manufacturing process involves shaping metal using compressive forces?

Forging (A) Signup and view all the answers

What is the primary difference between elastic deformation and plastic deformation?

Elastic deformation is reversible, while plastic deformation is irreversible (D) Signup and view all the answers

Which material property is influenced by factors such as microstructure, alloy composition, and processing conditions?

Toughness (C) Signup and view all the answers

What is the primary characteristic of brittle fracture?

Sudden and catastrophic failure without significant deformation (B) Signup and view all the answers

What is the primary advantage of composites over individual materials?

Synergistic leveraging of individual component strengths (C) Signup and view all the answers

What is the primary characteristic of stainless steel?

Superior corrosion resistance (C) Signup and view all the answers

What is the primary function of polymers in industries?

Versatility in packaging, automotive, and textiles (D) Signup and view all the answers

What is the primary consideration in material design to prevent structural failures?

Understanding the conditions leading to brittle fracture (C) Signup and view all the answers

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