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Fibre Optics Revision > Questions That May Have Been In The Mock Test > Flashcards

Questions That May Have Been In The Mock Test Flashcards

1
Q

What is the JSP for laser safety

A

JSP 390

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2
Q

Name benefits of fibre

A

Secure
Future proof
High capacity

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3
Q

What are the three parts of the fibre structure

A

Core , cladding primary coating

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4
Q

What is fibre made of ?

A

Silica

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5
Q

What process and used to make fibre optics cables

A

MCVD -modified chemical vapor deposition
OVD - outside vapour deposition

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6
Q

How does light travel through a fibre

A

Total internal reflection

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7
Q

What does LSZH mean

A

Low smoke zero halogen

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8
Q

In order to remove the primary and secondary coating what two tools would you use ?

A

No nicks
Millier strippers

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9
Q

What is the advantage of single mode ?

A

Higher bandwidth

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10
Q

What are the three windows of operations ?

A

Multimode 850nm
Single mode 1550nm
Multimode 1300nm/single mode 1310nm

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11
Q

What is insertion lost ?

A

The measurement of light lost between two determined points on a fibre cable

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12
Q

What is the index fibre of a cable that is of an equal density throughout ?

A

Step index

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13
Q

What index of fibre is made up of different layers each with a slightly different RI

A

Graded index

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14
Q

Lasers are classified based off what ?

A

Potential danger

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15
Q

What is the ✨Cone of acceptance✨

A

An acceptable angle at which light can enter a fibre to make a total internal reflection

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16
Q

What is the minimum return loss for a single mode system ?

17
Q

What’s the maximum distance a otdr can be effective at ?

18
Q

What is the minimum return loss for a multimode system ?

19
Q

What does SC stand for

A

Subscriber connector

20
Q

What is the acceptable loss of a splice ?

21
Q

What does FC/PC stand for ?

A

Fibre connector / physical contact

22
Q

What is the maximum percentage of outer cladding that’s allowed to have defects ?

23
Q

What does ST stand for ?

A

Straight tip

24
Q

What is the maximum loss for a connector within the MILITARY

25
Q

What does FC/PC stand for

A

Fibre connector / physical contact

26
Q

What does NRSWA stand for ?

A

New road and streets at work act

27
Q

What is the accept loss of a SPLICE

28
Q

What is the maximum return loss for a single mode system ?

29
Q

What does OTDR stand for ?

A

Optical time domain reflectometer

30
Q

What are the three operation parameters

A

Launch power
Attenuation
Bandwidth

Fibre Optics Revision (1 decks)

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