101 W10 A

What is the primary mechanism of corrosion in which metals react with their environment?

• a) Oxidation
• b) Reduction
• c) Combustion
• d) Distillation

In the context of corrosion engineering, what is the primary goal of corrosion control?

• a) Accelerating corrosion for specific purposes
• b) Preventing any chemical reactions with metals
• c) Managing and preventing the gradual destruction of materials
• d) Promoting the formation of iron oxides

What is the typical result of electrochemical corrosion in metals, like iron?

• a) Formation of oxide or salt and a distinctive orange coloration
• b) Formation of precious metals
• c) Generation of a protective barrier
• d) No change in appearance

Which term is commonly used when materials other than metals, such as ceramics or polymers, undergo corrosion-like degradation?

• a) Corrosion
• b) Degradation
• c) Erosion
• d) Oxidation

What is one factor that can strongly affect the corrosion process in materials?

• a) Exposure to moisture
• b) Exposure to light
• c) Exposure to heat
• d) Exposure to sound waves

Why does corrosion primarily occur on exposed surfaces of materials?

• a) Due to high temperatures
• b) Because of mechanical stress
• c) Because it's a diffusion-controlled process
• d) It occurs randomly

What method can increase a material's corrosion resistance by reducing the activity of the exposed surface?

• a) Passivation
• b) Polarization
• c) Electrification
• d) Fusion

In the chemistry of corrosion, which part of the metal behaves as the anode?

• a) The spot with the most corrosion
• b) The spot with the highest temperature
• c) The spot where oxidation occurs
• d) The spot with the lowest humidity

What happens at the cathodic spot during the electrochemical corrosion process?

• a) Oxidation takes place
• b) Electrons are released
• c) Reduction of oxygen occurs
• d) Metals are removed

In galvanic corrosion, what happens when two different metals have physical or electrical contact with each other?

• a) Both metals corrode at the same rate
• b) The more active metal corrodes faster
• c) The more noble metal corrodes faster
• d) Neither metal corrodes