Certified Fiber Optics Final Exam
Questions & Answers Correct!!!
the applications of optical fiber communications have increased at a rapid rate, since
the first commercial instillation of a fiber optic system in the - ANSWER1970's
The loss of a signal strength is called - ANSWERattenuation
A single binary digit Is called a - ANSWERBit
An eight bit group is called a - ANSWERBite
The _______ is used to express gain or loss in a fiber optic system or component -
ANSWERDecibel
1mw of power is ___dbm - ANSWER0 dbm
A loss of 3dbm is a _____ percent loss in power. - ANSWER50%
Power is measured ______in a fiber optic system - ANSWERdbm
Loss is measured in____ in a fiber optic system - ANSWERdb
light is electromagnetic energy with a ____wavelength and ____ frequency than radio
waves - ANSWERshorter, higher
The _____ is used to measure light - ANSWERmeasure
the deflection of light is called_____ - ANSWERrefraction
when light passes from one medium to another some of the light energy is _____back
into the first material - ANSWERReflected
The refractive index profile describes the relation between the indices of ____ and
______.The core of the multimode optical fiber has the highest refractive index. -
ANSWERCore, Cladding
What makes up an optical fiber - ANSWERcore, cladding, coating
mode is another name for - ANSWERPath
single mode fiber have a _____core than multimode fibers - ANSWERsmaller
, the part of the multimode optical fiber that functions as a mode filter is the______ -
ANSWERcladding
The standard core diameters of multimode fiber are___ and ___um. - ANSWER50nm,
62.5
_______strength is the ability of a fiber to be stretched or pulled without breaking -
ANSWERTensile
The Tensile strength of a fiber is_______ when it is bent - ANSWERRefracted
The number of modes in an optical fiber decreases as the ___increases -
ANSWERWavelength
Bandwidth is and effective indication of the rate at which____ can be sent -
ANSWERIntelligence
Graded index fibers uses numerous concentric layers of glass to reduce______ -
ANSWERModal Dispersion
The number of modes in an optical fiber ____as the core diameter decreases -
ANSWERDecreases
in accordance with the (ISO) (IEC) 1801 specifications, the___ was designed for use
with OM1 and OM2 fibers - ANSWERLED
The (ISO)(IEC) 1801 specifications for laser optimized multimode optical fiber types are
___ and ____ - ANSWER0M3, OM4
One of the methods to reduce___ dispersion is to increase the wavelength of the
transmitter - ANSWERModal
Numerical Aperture is the light ___ ability of a fiber - ANSWERGathering
Light must enter threw the cone of ______ - ANSWERAcceptance
NA range from about 0.500 for plastic fibers to ____ for multimode 50/125um graded
index fibers - ANSWER.200
the rule of thumb for the bend radius of and inside, indoor-outdoor, outside, and/or drop
cable when not subjected to Tensile loading is ___ times the outside diameter. -
ANSWER10 times
Material safety data sheets are ____ when chemicals are used - ANSWERRequired
Questions & Answers Correct!!!
the applications of optical fiber communications have increased at a rapid rate, since
the first commercial instillation of a fiber optic system in the - ANSWER1970's
The loss of a signal strength is called - ANSWERattenuation
A single binary digit Is called a - ANSWERBit
An eight bit group is called a - ANSWERBite
The _______ is used to express gain or loss in a fiber optic system or component -
ANSWERDecibel
1mw of power is ___dbm - ANSWER0 dbm
A loss of 3dbm is a _____ percent loss in power. - ANSWER50%
Power is measured ______in a fiber optic system - ANSWERdbm
Loss is measured in____ in a fiber optic system - ANSWERdb
light is electromagnetic energy with a ____wavelength and ____ frequency than radio
waves - ANSWERshorter, higher
The _____ is used to measure light - ANSWERmeasure
the deflection of light is called_____ - ANSWERrefraction
when light passes from one medium to another some of the light energy is _____back
into the first material - ANSWERReflected
The refractive index profile describes the relation between the indices of ____ and
______.The core of the multimode optical fiber has the highest refractive index. -
ANSWERCore, Cladding
What makes up an optical fiber - ANSWERcore, cladding, coating
mode is another name for - ANSWERPath
single mode fiber have a _____core than multimode fibers - ANSWERsmaller
, the part of the multimode optical fiber that functions as a mode filter is the______ -
ANSWERcladding
The standard core diameters of multimode fiber are___ and ___um. - ANSWER50nm,
62.5
_______strength is the ability of a fiber to be stretched or pulled without breaking -
ANSWERTensile
The Tensile strength of a fiber is_______ when it is bent - ANSWERRefracted
The number of modes in an optical fiber decreases as the ___increases -
ANSWERWavelength
Bandwidth is and effective indication of the rate at which____ can be sent -
ANSWERIntelligence
Graded index fibers uses numerous concentric layers of glass to reduce______ -
ANSWERModal Dispersion
The number of modes in an optical fiber ____as the core diameter decreases -
ANSWERDecreases
in accordance with the (ISO) (IEC) 1801 specifications, the___ was designed for use
with OM1 and OM2 fibers - ANSWERLED
The (ISO)(IEC) 1801 specifications for laser optimized multimode optical fiber types are
___ and ____ - ANSWER0M3, OM4
One of the methods to reduce___ dispersion is to increase the wavelength of the
transmitter - ANSWERModal
Numerical Aperture is the light ___ ability of a fiber - ANSWERGathering
Light must enter threw the cone of ______ - ANSWERAcceptance
NA range from about 0.500 for plastic fibers to ____ for multimode 50/125um graded
index fibers - ANSWER.200
the rule of thumb for the bend radius of and inside, indoor-outdoor, outside, and/or drop
cable when not subjected to Tensile loading is ___ times the outside diameter. -
ANSWER10 times
Material safety data sheets are ____ when chemicals are used - ANSWERRequired
