Corrosion Quiz

Corrosion is an example of:

• Oxidation

• Reduction

• Electrolysis

• Erosion

Tags

NGSS.MS-PS1-2

Which of the following factors does not govern the rusting of iron?

• Presence of air

• Presence of moisture

• Presence of electrolytes in water

• Presence of impurities of more electropositive metals in iron

In galvanic corrosion:

• More metal gets corroded

• Less noble metal gets corroded

• The metal having a higher standard reduction potential gets corroded

• The metal placed lower in the electrochemical series gets corroded

The localised formation of holes in the surface of a metal is called:

• Waterline corrosion

• Pitting corrosion

• Concentration cell corrosion

• Wet corrosion

What is the cause of crevice corrosion?

• A difference in the ion concentration of the surrounding air

• A difference in the ion concentration between two areas of metal

• A reduction in the ion concentration in one metal in relation to another

• An increase in the gap between two metals in close proximity to one another

Which of the following is not a method of corrosion prevention?

• Metal alloy

• Temperature control

• Chemical inhibitor

• Protective coating

Tags

NGSS.MS-ETS1-2

What is the primary factor that accelerates the rate of pitting corrosion?

• Low pH

• High humidity

• High temperature

• Presence of chloride ions

Which of the following metals is most likely to undergo galvanic corrosion when in contact with copper?

• Platinum

• Gold

• Aluminum

• Silver

Which of the following is a common method to protect steel from rusting?

• Tempering

• Quenching

• Annealing

• Galvanization

Tags

NGSS.HS-ETS1-3

Which of the following metals is least likely to corrode in a marine environment?

• Aluminum

• Stainless steel

• Copper

• Iron