Avionics 104 Final

Question 1

A communication system that uses pure glass fibers to transmit digital data is fiber optics.

• True
• False

Answer 1

True

Question 2

Digital data is sent over beams of light.

• True
• False

Answer 2

True

Question 3

What is not an advantage of fiber optics?

• EMI Resistant
• Low signal loss
• High temp environments require specialized safeguards/equipment
• Data rate 100 times faster

Answer 3

High temp environments require specialized safeguards/equipment

Question 4

What is not a disadvantage of fiber optics?

• High vibration requires specialized safeguards/equipment.
• Fragile
• Expensive
• Less weight

Answer 4

Less weight

Question 5

An advantage of fiber optics is that long runs do not require amplification.

• True
• False

Answer 5

False

Question 6

Short runs require amplification.

• True
• False

Answer 6

False

Question 7

Each bend/curve loses some of the signal strength.

• True
• False

Answer 7

True

Question 8

Which is more refractive?

• Core
• Cladding

Answer 8

Core

Question 9

Light must be launched at any angle, to successfully refract through the fiber optics.

• True
• False

Answer 9

False

Question 10

If light is launched straight on, it will fail because it will not refract.

• True
• False

Answer 10

True

Question 11

Laser light will only damage your eyes if you can see it.

• True
• False

Answer 11

False

Question 12

White laser light cannot be seen but will damage your eyes.

• True
• False

Answer 12

True

Question 13

Fiber optics is stated as being made of glass, this glass is tempered glass and does not break.

• True
• False

Answer 13

-False

Question 14

You may work with broken fiber optics and not use gloves, if you are careful.

• True
• False

Answer 14

False

Question 15

Boeing data states that fiber optic repairs are usually beyond the six inches of termination.

• True
• False

Answer 15

-False

Question 16

Fiber optic repairing has been approved to be used on aircraft.

• True
• False

Answer 16

True

Question 17

Fiber optics can be cleaned by wiping it with a dry shop towel.

• True
• False

Answer 17

False

Question 18

Fiber optic cables have near zero tolerance for unwanted materials; oils, dirt.

• True
• False

Answer 18

True

Question 19

You can easily inspect the fiber optics with the naked eye.

• True
• False

Answer 19

-False

Question 20

Using a microscope or magnifier to view the free end of any optical fiber connected to the 180XL is recommended.

• True
• False

Answer 20

False

Question 21

Always aim the free end of an active fiber at a reflective surface.

• True
• False

Answer 21

False

Question 22

A flashing red light on the 180XL indicates what?

• laser light is not functioning
• batteries are low
• the 180XL has an internal malfunction
• No answer text is provided

Answer 22

batteries are low

Question 23

The 180XL identifies what problems with the fiber optics?

• Any breaks in the line being tested
• Any bends too tight
• Any area where the line is stressed
• All of the above

Answer 23

All of the above

Question 24

Blowing on the end of a fiber being tested will packed dirt not lift dirt away.

• True
• False

Answer 24

True