Name: 
 

FO Test Online Self-Study Instruments


True/False
Indicate whether the statement is true or false.
 

 1. 
Light in optical fiber systems is genrally invisible to the human eye but may be seen using a digital camera or cell phone camera.
 

Multiple Choice
Identify the choice that best completes the statement or answers the question.
 

 2. 
The wavelength of light used in glass optical fiber is in a region of spectrum called _________.
A.
Ultraviolet
B.
Visible
C.
Infrared
D.
Green
 

Multiple Response
Identify one or more choices that best complete the statement or answer the question.
 

 3. 
Optical power meters are calibrated at different wavelengths because ________.
 A.
The sensitivity of detectors in power meters depends on the wavelengths
 B.
Fiber optic systems operate at several different wavelngths
 C.
Attenuation of a fiber optic cable plant is different depending on wavelength
 D.
Connector and splice loss is dependent on wavelnegth
 

 4. 
What wavelength sources are used with multimode glass optical fibers?
 A.
650 nm
 B.
850 nm
 C.
1300 nm
 D.
1550 nm
 

 5. 
What wavelength sources are used with singlemode glass optical fibers?
 A.
650 nm
 B.
850 nm
 C.
1310 nm
 D.
1550 nm
 

 6. 
What wavelength sources are used with plastic optical fibers?
 A.
650 nm
 B.
850 nm
 C.
1310 nm
 D.
1550 nm
 

 7. 
Attenuators are used in networks to reduce power at the receiver to acceptable levels, but they are also used in testing for _________.
 A.
Keeping the signal from damaging the power meter
 B.
Measuring the link loss
 C.
Measuring the link margin
 D.
Loopback testing of transceivers
 

Matching
 
 
Match the instrument with the tests they perform
A.
Visual Fiber Tracer
B.
Visual Fault Locator
C.
Inspection Microscope
D.
Optical Power Meter
E.
Optical Loss Test Set (OLTS or LSPM)
F.
CD (Chromatic Dispersion) or PMD (Polarization Mode Dispersion) Tester
G.
Spectral Attenuation Tester
H.
Optical Spectrum Analyzer
I.
Optical Continuous Wave Reflectometer (OCWR)
J.
Optical Time Domain Reflectometer (OTDR)
 

 8. 

 Long distance singlemode fiber bandwidth
 

 9. 

 Multimode fiber continuity or polarity
 

 10. 

 Singlemode DWDM or CWDM cable plants
 

 11. 

 Connector end quality or condition
 

 12. 

 Optical return loss (ORL)
 

 13. 

 Source specral characteristics
 

 14. 

 Source output or receiver input level
 

 15. 

 Fiber length, attenuation or location of splices, connectors, breaks, etc.
 

 16. 

 Location of breaks or stresses in fiber close to the end
 

 17. 

 Insertion loss of the cable plant or patchcord loss
 



 
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