OSP Fiber Optic Testing

Question 1

True/False

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

Answer 1

False

Question 2

True/False

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

Answer 2

False

Question 3

True/False

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

Answer 3

True

Question 4

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

Answer 4

A. Design

Question 5

The standard method of testing installed multimode cables in a cable plant is described in:
A. FOTP-34
B. ISO 11801
C. FOTP-57
D. OFSTP-14

Answer 5

D. OFSTP-14

Question 6

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

Answer 6

A. OLTS or light source and power meter

Question 7

Multimode graded-index glass 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

Answer 7

B. LED, 850, 1300 nm

Question 8

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

Answer 8

C. Laser

Question 9

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

Answer 9

C. Three

Question 10

Which reference method is required for TIA 568?
A. One cable reference
B. Two cable reference
C. Three cable reference
D. Any method as long as it is documented

Answer 10

D. Any method as long as it is documented

Question 11

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

Answer 11

B. Fiber size and connector type

Question 12

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

Answer 12

A. Length

Question 13

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

Answer 13

B. Radar

Question 14

OTDRs are used in outside plant cables to \_\_\_\_\_\_\_\_\_\_.
A. Verify splice loss
B. Measure length
C. Find faults
D. All of the above

Answer 14

D. All of the above

Question 15

In premises applications, OTDRs are limited in usefulness by their \_\_\_\_\_\_.
A. Output power
B. Distance capability
C. Distance Resolution
D. Software

Answer 15

C. Distance Resolution