Name: 
 

OSP Test



After taking the test, you may print your answers for reference or to turn in as homework.

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

 1. 

Cables tested with an OTDR do not require insertion loss testing with a light source and power meter or OLTS.
 

 2. 

Connectors at each end of the cable plant should not be counted when calculating the cable plant loss.
 

 3. 

The OTDR should never be used without a "launch cable" which is also called a "pulse suppressor."
 

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

 1. 

Cable plant loss should be estimated during the __________ phase.
A.
Design
B.
Installation
C.
Testing
D.
Troubleshooting
 

 2. 

The US standard method of testing installed singlemode cables in a cable plant is described in __________.
A.
FOTP-34
B.
ISO 11801
C.
FOTP-57
D.
OFSTP-7
 

 3. 

What test instrument(s) are used for insertion loss testing?
A.
OLTS  or light source and power meter
B.
VFL
C.
OTDR
 

 4. 

Singlemode fiber optic cables are tested with __________ sources at __________ and __________ wavelengths.
A.
LED, 650, 850 nm
B.
LED, 850, 1300 nm
C.
Laser, 980, 1400 nm
D.
Laser, 1310, 1550 nm
 

 5. 

What type of source is generally used for testing multimode fibers?
A.
LED
B.
VCSEL
C.
Laser
 

 6. 

How many methods are included in standards for setting the ‘0 dB‘ reference for loss testing?
A.
One
B.
Two
C.
Three
D.
Four
 

 7. 

Patchcords can be tested to verify the connectors on each end individually by _________________?
A.
Single-ended testing
B.
Double-ended testing
C.
OTDRs
D.
Visual fault locators
 

 8. 

Reference cables must match the __________ of the cables being tested.
A.
Fiber size and type
B.
Fiber size and connector type
C.
Connector type
D.
Fiber size and loss specification
 

 9. 

The total loss of the fiber in the cable plant is calculated by multiplying the attenuation coefficient of the fiber by the __________.
A.
Length
B.
Number of links
C.
Number of connectors
D.
Number of splices
 

 10. 

The principle of operation of OTDRs is similar to __________ .
A.
Power meters and sources
B.
Radar
C.
Mirrors
D.
Lenses
 

 11. 

In long distance applications, OTDR distance measurement accuracy is  limited by their __________.
A.
Output power
B.
Distance capability
C.
Calibration of fiber index of refraction
D.
Software
 

 12. 

Chromatic dispersion can be tested using an OTDR because __________.
A.
An OTDR can measure the round trip time differences at each wavelength
B.
Chromatic dispersion affects backscatter
C.
The OTDR receiver is sensitive to the wavelength of light
D.
OTDRs test at multiple wavelengths
 

 13. 

In long distance applications intended for wavelength division multiplexing, a ______ test is used to verify fiber performance over all wavelengths.
A.
Dispersion
B.
Spectral attenuation
C.
OTDR
D.
VFL
 

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

 1. 

OTDRs are used in outside plant cables to __________.
 A.
Verify splice loss
 B.
Measure length
 C.
Find faults
 D.
Measure optical power
 



 
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