Basic Operations Firefighter Certification Practice Exam

What type of glass is typically used for the rear window of most vehicles?

1. Tempered

2. Laminated

3. Plate

4. Insulated

The correct answer is: Tempered

Tempered glass is typically used for the rear window of most vehicles because it is designed to withstand high impacts and temperatures, making it safer and more durable than other types of glass. When tempered glass shatters, it breaks into small, blunt pieces that are less likely to cause injury, enhancing safety for passengers. Additionally, the manufacturing process of tempering involves heating the glass and then rapidly cooling it, which increases its strength. This makes it an ideal choice for automotive applications where both safety and performance are critical. Laminated glass, while commonly used in windshields due to its ability to hold together when broken, is less common for rear windows because it is thicker and heavier. Plate glass is not typically used in modern vehicles due to its brittleness and tendency to shatter upon impact. Insulated glass is more relevant for windows in buildings where thermal efficiency is important, rather than in automotive applications.