Which color comes third in the copper color code sequence?

Study for the BICSI OSP Design Test. Prepare using multiple choice questions, with hints and explanations to enhance understanding. Succeed in your exam journey!

Multiple Choice

Which color comes third in the copper color code sequence?

Explanation:
Copper color coding uses a fixed order to label each conductor so technicians can follow and connect them correctly. In a common four-color sequence used for copper conductors, the colors appear in this order: White, Red, Black, Yellow. Following that sequence, the third color is Black. That’s why Black is the correct choice here. White would be first, Red second, and Yellow fourth, so neither of them sits in the third position. This consistent labeling helps prevent mixups when tracing circuits or making terminations in OSP and related copper cabling work.

Copper color coding uses a fixed order to label each conductor so technicians can follow and connect them correctly. In a common four-color sequence used for copper conductors, the colors appear in this order: White, Red, Black, Yellow. Following that sequence, the third color is Black. That’s why Black is the correct choice here. White would be first, Red second, and Yellow fourth, so neither of them sits in the third position. This consistent labeling helps prevent mixups when tracing circuits or making terminations in OSP and related copper cabling work.

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