ETA Fiber FOI Study Guide Questions with
100% Correct Answers
There are two common multimode fiber sizes, which of the following are correct?
62.5/125 and 50/125
Which of the following is the method to measure attenuation?
Db
Which wavelength does fiber optic transmission occur in?
Infrared
When inspecting fiber optic end faces, which of the following is considered the safest?
Video Inspection Scope
When splicing fiber optic cable, what is the acceptable attenuation loss?
.01
When light bends, such as when a straw in water appears distorted, what is occurring?
Refraction
What could occur if two fiber optic cables are connected using a computer?
Fresnel Reflection
What must decrease to have additional modes?
Wavelength
What is a single mode fiber optic transmission method that is lower in cost than
traditional lasers?
, VCSEL
What type of cable minimizes model dispersion?
Single Mode 9/125
Different wavelengths of light travel at the same speed?
False
Bending beyond the limit of the cable can cause
Macrobends
Reflectance of the reflected power to incident power is denoted with?
Db
Which of the following uses VSCEL?
850 nm
OM% is typically used for the latest and greatest _______ cable
Wideband
What part of the end face of a fiber optic cable can have slight defects without adversely
affecting attenuation?
Outer Cladding
Tier 1 test levels require optical loss testing and polarity verification
True
Graded index multimode fiber has less modal dispersion
True
100% Correct Answers
There are two common multimode fiber sizes, which of the following are correct?
62.5/125 and 50/125
Which of the following is the method to measure attenuation?
Db
Which wavelength does fiber optic transmission occur in?
Infrared
When inspecting fiber optic end faces, which of the following is considered the safest?
Video Inspection Scope
When splicing fiber optic cable, what is the acceptable attenuation loss?
.01
When light bends, such as when a straw in water appears distorted, what is occurring?
Refraction
What could occur if two fiber optic cables are connected using a computer?
Fresnel Reflection
What must decrease to have additional modes?
Wavelength
What is a single mode fiber optic transmission method that is lower in cost than
traditional lasers?
, VCSEL
What type of cable minimizes model dispersion?
Single Mode 9/125
Different wavelengths of light travel at the same speed?
False
Bending beyond the limit of the cable can cause
Macrobends
Reflectance of the reflected power to incident power is denoted with?
Db
Which of the following uses VSCEL?
850 nm
OM% is typically used for the latest and greatest _______ cable
Wideband
What part of the end face of a fiber optic cable can have slight defects without adversely
affecting attenuation?
Outer Cladding
Tier 1 test levels require optical loss testing and polarity verification
True
Graded index multimode fiber has less modal dispersion
True
