Question

The most commonly used metal in domestic appliances is ____________.
1. Iron
2. Platinum
3. Zinc
4. Aluminum

Answer 1

Correct Answer - Option 4 : Aluminum

The correct answer is Aluminum.

• Home appliances—the washing machine, dryer, refrigerator and laptop—exist as they are today because of aluminium’s lightweight, structural strength and thermal characteristics.
  • Iconic brands stretching from West Bend’s 1970 Presto Cooker to Apple’s iPod, iPad and iPhone share a single, common characteristic: the use of aluminium.
    
• Within two years of the end of World War II, large manufacturers had shifted their plants to produce ultra-modern labour-saving devices: electric washing machines and dryers first among them.
  • From the start, these revolutionary consumer machines boasted the 1950s-chic white enamel finish. Consumer washer and dryer appliances were viable in large part due to the lightweight nature of their aluminium frames.
  • Aluminum-frame refrigerators followed as the metal is the ideal material for refrigeration appliances.
  • Its metallurgical characteristics transmit heat rapidly, which facilitates the cooling process and guarantees highly efficient refrigeration.
  • Modern refrigerators would not exist as they are today without the lightweight and thermal conductivity advantages of aluminum.