Free CFOT Fiber Optics Questions and Answers

Question 1

What does LASER stand for?

Accepted Answer

Light Amplification by Stimulated Emission of Radiation

Answer

Laser Amplification by Stimulated Emission of Radiation

Answer

Light Administration of Stimulated Energy Radiation

Answer

None of the above

Question 2

Focal length is determined by?

Accepted Answer

The distance from the center of the lens to the point where the light converges

Answer

The distance from the battery to the point where the light converges

Answer

The distance from the laser to the lens

Answer

None of the Above

Question 3

Refraction is when?

Accepted Answer

Light bends towards the normal

Answer

Light becomes one central dot

Answer

Light bends away from the normal

Answer

Light reflects back from the object

Question 4

Diffraction is when?

Accepted Answer

Light bends away from the normal

Answer

Light reflects back from the object

Answer

Light bends towards the normal

Answer

Light becomes one central dot

Question 5

What happens when a laser is pointed into a prism?

Accepted Answer

The light counteracts and shines in the opposite direction

Answer

The light shines out the the same side but at a small angle

Answer

The light shines straight through the prism

Answer

All of the Above

Question 6

Refraction happens because?

Accepted Answer

The light slows down in a material

Answer

The light speeds up in a material

Answer

The light changes color in a material

Answer

The light stops in a material

Question 7

Fiber Optics is

Accepted Answer

Communication over thin stands of glass

Answer

Communication over speaker wire

Answer

Communication over copper wires

Answer

All of the above

Question 8

What application does fiber optics not include?

Accepted Answer

Desktop Publishing

Answer

Utilities

Answer

LANS

Answer

CATV

Question 9

Why are Fiber Optics used?

Accepted Answer

Security

Question 10

Outside plant premises is?

Accepted Answer

Installing fiber optics outside

Answer

Installing fiber optics in a school

Answer

Installing fiber optics in a LAN

Answer

none of the above