Fiber Optic Exam Questions And
Answers 100% Correct
A fiber optic inspector microscope can increase the danger of high powerd light
source by focusing the light out of a fiber into your eyes. - ANSWER - True
A fiber optic power meter measures absolute power in dBm (dB reference to 1 mw)
and when a light source measures insertions loss in dB. - ANSWER - True
Confining light in a material by surrounding it by another material with lower
refractive index is the phenomenon of - ANSWER - Total internal reflection
The largest cause of attenuation in am optical fiber is - ANSWER - Scattering
When we say 62.5/125 fiber what does "62.5" means? - ANSWER - Core size,
diameter in microns
When we say 50/125 fiber what does "125" mean? - ANSWER - Cladding size the
diameter in microns
An older multimode fiber design with a 50/125 micron core is now option in
premises cabling system because it - ANSWER - Has a higher bandwidth which gives
more distance capability with gigabit network
In multimode fiber the attenuation of the fiber is __________ at 850 nm that's 1300
nm - ANSWER - Higher
Which of the following represent a singlemode fiber size ? - ANSWER - 9/125
Singlemode fiber has ______ bandwidth in both multimode and singlemode fiber -
ANSWER - Greater
, What form of dispersion affect bandwidth in both multimode and singlemode fiber -
ANSWER - Chromatic dispersion
Most plastic optical fiber are - ANSWER - Large core step-index
When you strip singlemode or graded index multimode mode glass fiber you are
removing the - ANSWER - Primary buffer coating
The outermost layer of protection for an optic fiber cable is - ANSWER - The jacket
The proper method of pulling optical fiber is to attach the pull wire or tape to the -
ANSWER - Strength members
According to the text HYBRIDcables refer to cable that contain - ANSWER - Both
singlemode and multimode optical fibers
What type of fiber cable design allows for large number of fibers with ultra high
density low cost small size diameters? - ANSWER - Ribbon
When flexibility and ease of termination are priory the type of cable best suited is -
ANSWER - Tight buffer
What standard covers flammability requirements of fiber optic cables for installation
in premises application - ANSWER - NEC 770.50
According to the text Composite cable refer to cable that contain - ANSWER - Both
optical fiber and copper must be grounded
Which optical fiber cable must be grounded - ANSWER - All optical cable that
contain metal
Which NEC rated cable can be used in air handling space of building - ANSWER -
OFNP(US)
Answers 100% Correct
A fiber optic inspector microscope can increase the danger of high powerd light
source by focusing the light out of a fiber into your eyes. - ANSWER - True
A fiber optic power meter measures absolute power in dBm (dB reference to 1 mw)
and when a light source measures insertions loss in dB. - ANSWER - True
Confining light in a material by surrounding it by another material with lower
refractive index is the phenomenon of - ANSWER - Total internal reflection
The largest cause of attenuation in am optical fiber is - ANSWER - Scattering
When we say 62.5/125 fiber what does "62.5" means? - ANSWER - Core size,
diameter in microns
When we say 50/125 fiber what does "125" mean? - ANSWER - Cladding size the
diameter in microns
An older multimode fiber design with a 50/125 micron core is now option in
premises cabling system because it - ANSWER - Has a higher bandwidth which gives
more distance capability with gigabit network
In multimode fiber the attenuation of the fiber is __________ at 850 nm that's 1300
nm - ANSWER - Higher
Which of the following represent a singlemode fiber size ? - ANSWER - 9/125
Singlemode fiber has ______ bandwidth in both multimode and singlemode fiber -
ANSWER - Greater
, What form of dispersion affect bandwidth in both multimode and singlemode fiber -
ANSWER - Chromatic dispersion
Most plastic optical fiber are - ANSWER - Large core step-index
When you strip singlemode or graded index multimode mode glass fiber you are
removing the - ANSWER - Primary buffer coating
The outermost layer of protection for an optic fiber cable is - ANSWER - The jacket
The proper method of pulling optical fiber is to attach the pull wire or tape to the -
ANSWER - Strength members
According to the text HYBRIDcables refer to cable that contain - ANSWER - Both
singlemode and multimode optical fibers
What type of fiber cable design allows for large number of fibers with ultra high
density low cost small size diameters? - ANSWER - Ribbon
When flexibility and ease of termination are priory the type of cable best suited is -
ANSWER - Tight buffer
What standard covers flammability requirements of fiber optic cables for installation
in premises application - ANSWER - NEC 770.50
According to the text Composite cable refer to cable that contain - ANSWER - Both
optical fiber and copper must be grounded
Which optical fiber cable must be grounded - ANSWER - All optical cable that
contain metal
Which NEC rated cable can be used in air handling space of building - ANSWER -
OFNP(US)
