Direction: Read and understand the questions below. Choose the letter of the correct answer.
1. Which is the main cause of rusting?
A. Fertilizer
B. Seed
C. Soil
D. Water
2. The following are the environmental condition that can cause and accelerate rust on tools, farm machinery and equipment, which is not included?
A. Condensation
B. Humidity
C. Oxygen
D. Plants
3. Which method of identifying non-functional tools and equipment that there is something
wrong with the performance of either hand tools or equipment?
A. Functionality
B. Performance
C. Person involved
D. Power supply
4. It is a treatment applied to a new equipment and properly maintain.
A. Crevice corrosion
B. Corrosion
C. Corrosion protection
D. Corrosive wear
5. A type of corrosion that leads to expansion and contraction of metal.
A. Crevice corrosion
B. Intergranular corrosion
C. Stress corrosion
D. Uniform corrosion​