LO3: Material Failure Quiz
Authored by Ts. PARAN
Science
University
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13 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is corrosion?
Increase in material thickness
Formation of a protective layer on a material
Strengthening of a material through exposure to oxygen
Deterioration of a material due to a reaction with its environment
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which environmental factor affects degradation in wood by biological organisms such as fungi and insects?
Moist humid conditions
Risk of wetting or permanent contact with water
Exposure to UV light
Presence of electrolytes
3.
MULTIPLE SELECT QUESTION
45 sec • 2 pts
What effect does heat have on certain plastics?
Strength and stiffness increase
Plastics become more flexible
Plastics weaken or melt
Plastics become brittle
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which metal is particularly resistant to corrosion and forms strong oxides on its surface?
Lead
Steel
Copper
Aluminium
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is sacrificial protection in metals?
Anodising the metal surface
Sacrificing one metal to protect another
Applying a protective coating of paint
Using electro-plating for protection
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of anodising of aluminium?
To produce a chalky faded appearance
To provide sacrificial protection
To give the coating an attractive color
To increase the thickness of the metal
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the effect of corrosion on the mechanical and physical properties of metals?
Increase in metal thickness
Strengthening of the metal
Reduction of metal thickness leading to loss of strength
No effect on the metal properties
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