Certified Fiber Optics Practice Exam

Which of the following describes the purpose of fiber optic cable armor?

1. Aesthetic appeal

2. Weight reduction

3. Electrical insulation

4. Protection against physical damage

The correct answer is: Protection against physical damage

The purpose of fiber optic cable armor is to provide protection against physical damage. Fiber optic cables are typically made up of delicate glass fibers that can easily be broken or damaged by external forces. The armor surrounding these cables serves as a robust barrier that safeguards the fibers from various forms of impact, abrasion, or environmental conditions that could compromise their integrity. This protective layer can come in different materials, such as steel or other durable substances, depending on the application and installation environment. By ensuring that the fibers remain intact, the armor helps to maintain signal integrity and prevents costly repairs or service interruptions. Properly armored fiber optic cables are crucial, particularly in industrial settings, underground installations, or areas where cables may be exposed to rodents or other potential threats. The other options do not align with the primary function of the armor. Aesthetic appeal, weight reduction, and electrical insulation are not the main purposes of the armor in fiber optic cables. Instead, those aspects are more related to design considerations or specific functionalities that do not pertain to the primary protective role of the armor.