DCI Fiber Optic Installation 2

Question 1

What is the minimum bend radius typically allowed for a standard single-mode fiber optic cable during installation?

Accepted Answer

20 times the cable diameter

Answer

The minimum bend radius during installation is typically 20 times the cable diameter to prevent microbending losses and physical damage.

Question 2

Which tool is specifically used to cleave fiber optic strands before splicing?

Accepted Answer

Precision cleaver

Answer

A precision cleaver scores and snaps the fiber to create a flat, perpendicular end-face required for low-loss splicing.

Question 3

When pulling fiber through conduit, what is the maximum pulling tension typically allowed for a standard 6-fiber loose-tube cable?

Accepted Answer

200 lbf

Answer

Most standard loose-tube cables have a rated pulling tension of approximately 200 lbf (pounds-force) to avoid stressing the fibers.

Question 4

What does an OTDR trace's 'dead zone' refer to?

Accepted Answer

The area near the launch end where reflections mask real events

Answer

The dead zone is the region immediately after the OTDR launch pulse where the receiver is saturated and cannot detect nearby events.

Question 5

Which fiber optic connector type uses a push-pull latching mechanism and is commonly used in high-density patch panels?

Accepted Answer

LC

Answer

The LC (Lucent Connector) uses a push-pull latch and has a smaller 1.25 mm ferrule, making it ideal for high-density applications.

(DCI) Data Cabling Installer Practice Test