ETA-I Study Guide (Fiber Optics Installer
Certification) (FOI) Questions With
Complete Solutions
An optical fiber works based off of a principle known as; -
Correct Answers ✅Total Internal Reflection.
The bending of light as it passes from one transparent
material into another which has a different refractive index is
what? - Correct Answers ✅Refraction.
Light is electromagnetic radiation in the wavelength range
including visible, ultraviolet, X-rays and _______________. -
Correct Answers ✅Infrared.
What are the three parts of a typical optical fiber? - Correct
Answers ✅Core, Cladding, buffer Coating. (3 C's)
A simple fiber optic system consists of what four
components? - Correct Answers ✅Transmitter, receiver,
fiber, and connector.
Which optical fiber is most suited for very high speed and
long distance applications? - Correct Answers ✅Single-
mode.
The reduction of power as a signal passes through a system
is called (Also known as signal loss); - Correct Answers
✅Attenuation.
, ETA-I Study Guide (Fiber Optics Installer
Certification) (FOI) Questions With
Complete Solutions
A fiber optic cable which has single-mode and multi-mode
optical fibers is what kind of cable? - Correct Answers
✅Hybrid.
A fiber with it's core having numerous concentric layers of
glass, with each layer having a lower index of refraction is
what kind of fiber? What is the core size and how is it
identified now? - Correct Answers ✅Multi-mode graded-
index.
The spreading of light pulses as they take different paths in
traveling down a fiber is known as what? - Correct Answers
✅Modal Dispersion.
What are the two widely used methods for installing buried
fiber optic cables? - Correct Answers ✅Trench and Plow
methods.
What configurations should be used when the center pull or
backfeeding techniques are used to pull in cables? - Correct
Answers ✅Figure 8's.
During the installation of fiber optic cables, innerduct serves
what two main purposes? - Correct Answers ✅Expansion
and Protection.
Certification) (FOI) Questions With
Complete Solutions
An optical fiber works based off of a principle known as; -
Correct Answers ✅Total Internal Reflection.
The bending of light as it passes from one transparent
material into another which has a different refractive index is
what? - Correct Answers ✅Refraction.
Light is electromagnetic radiation in the wavelength range
including visible, ultraviolet, X-rays and _______________. -
Correct Answers ✅Infrared.
What are the three parts of a typical optical fiber? - Correct
Answers ✅Core, Cladding, buffer Coating. (3 C's)
A simple fiber optic system consists of what four
components? - Correct Answers ✅Transmitter, receiver,
fiber, and connector.
Which optical fiber is most suited for very high speed and
long distance applications? - Correct Answers ✅Single-
mode.
The reduction of power as a signal passes through a system
is called (Also known as signal loss); - Correct Answers
✅Attenuation.
, ETA-I Study Guide (Fiber Optics Installer
Certification) (FOI) Questions With
Complete Solutions
A fiber optic cable which has single-mode and multi-mode
optical fibers is what kind of cable? - Correct Answers
✅Hybrid.
A fiber with it's core having numerous concentric layers of
glass, with each layer having a lower index of refraction is
what kind of fiber? What is the core size and how is it
identified now? - Correct Answers ✅Multi-mode graded-
index.
The spreading of light pulses as they take different paths in
traveling down a fiber is known as what? - Correct Answers
✅Modal Dispersion.
What are the two widely used methods for installing buried
fiber optic cables? - Correct Answers ✅Trench and Plow
methods.
What configurations should be used when the center pull or
backfeeding techniques are used to pull in cables? - Correct
Answers ✅Figure 8's.
During the installation of fiber optic cables, innerduct serves
what two main purposes? - Correct Answers ✅Expansion
and Protection.
