WorksheetsCorrosion Worksheet Questions
Total questions: 7
Worksheet time: 4mins
Corrosion is caused by which of the following?
The reaction of metals with moisture and oxygen
The application of heat to metals
The presence of non-metallic impurities
The use of lubricants on metals
Materials besides metals that are prone to corrosion under certain conditions include:
Plastics in the presence of strong oxidizers
Glass in dry air
Ceramics in neutral water
Wood in vacuum
Chemical corrosion in metals occurs due to which of the following factors?
Exposure to moisture and oxygen
Lack of contact with air
Absence of water
Low temperature only
Electrochemical corrosion involves the interaction of anodes, cathodes, and electrolytes. What roles do these components play in the corrosion process?
Anodes lose electrons, cathodes gain electrons, and electrolytes allow ion movement.
Anodes gain electrons, cathodes lose electrons, and electrolytes prevent ion movement.
Anodes and cathodes both lose electrons, and electrolytes block electron flow.
Anodes and cathodes both gain electrons, and electrolytes have no role.
Corrosion can be prevented using a sacrificial anode by:
attaching a more reactive metal that corrodes instead of the protected metal
painting the metal surface to block oxygen
using an electric current to reverse corrosion
coating the metal with oil to prevent moisture
Gases like oxygen contribute to the corrosion of vehicle exhaust systems by:
reacting with metals to form rust and other corrosive compounds
cooling the exhaust system and causing cracks
increasing the fuel efficiency of the vehicle
reducing the emission of harmful gases
The purpose of galvanizing steel is to prevent corrosion. How does zinc achieve this?
Zinc forms a protective layer that prevents oxygen and moisture from reaching the steel.
Zinc increases the strength of steel, making it less likely to corrode.
Zinc reacts with steel to form a new, non-corrosive metal.
Zinc changes the color of steel, making corrosion less visible.