Podcast
Questions and Answers
Why is aluminium used in the manufacture of aircraft?
Why is aluminium used in the manufacture of aircraft?
- Because of its ductility
- Because of its good electrical conductivity
- Because of its low density (correct)
- Because of its resistance to corrosion
What is the main reason for using aluminium in the manufacture of overhead electrical cables?
What is the main reason for using aluminium in the manufacture of overhead electrical cables?
- High melting point and malleability
- Good electrical conductivity and ductility
- Resistance to corrosion
- Low density and good electrical conductivity (correct)
Why is stainless steel used in cutlery?
Why is stainless steel used in cutlery?
- Hardness and resistance to rusting (correct)
- Good electrical conductivity and ductility
- Low density and good electrical conductivity
- Resistance to corrosion
What makes alloys harder and stronger than pure metals?
What makes alloys harder and stronger than pure metals?
What is brass a mixture of?
What is brass a mixture of?
What is the primary reason for using copper in electrical wiring?
What is the primary reason for using copper in electrical wiring?
What is the main reason behind the apparent unreactivity of aluminium?
What is the main reason behind the apparent unreactivity of aluminium?
Which of the following metals will react with dilute hydrochloric acid?
Which of the following metals will react with dilute hydrochloric acid?
Which barrier method prevents rusting by excluding oxygen or water?
Which barrier method prevents rusting by excluding oxygen or water?
What is the primary function of sacrificial protection in preventing corrosion of metals?
What is the primary function of sacrificial protection in preventing corrosion of metals?
What determines the relative reactivities of metals in displacement reactions?
What determines the relative reactivities of metals in displacement reactions?
From the given reactivity series, which metal is most likely to react vigorously with cold water?
From the given reactivity series, which metal is most likely to react vigorously with cold water?
