TSA CBT Practice Test

What color scale typically represents hard materials such as metals and batteries?

1. Orange/Yellow

2. Blue/Black

3. Red

4. Green

The correct answer is: Blue/Black

The blue/black color scale is commonly used to represent hard materials like metals and batteries. This choice is particularly effective because blue often symbolizes strength, durability, and reliability, which are key characteristics of hard materials. Black, on the other hand, can represent the density and weight often associated with these materials. The other colors in the options do not typically convey the attributes of hard materials. For instance, orange/yellow generally represents warmth or energy and may be associated with softer materials or less durable items. Red is often used to indicate warning or danger, while green symbolizes safety or environmental considerations, which are not directly related to the properties of hard materials like metals and batteries.