1.

In which decade did the loss for 1 km of optical fiber fall below 20 dB?

1. 1960

2. 1970

3. 1980

4. 1990

2.

The component in a fiber optic system that converts light energy into electrical energy is the ___________________.

1. Transmitter

2. Receiver

3. Optical fiber

4. Coupler

3.

A 50% reduction in signal strength is a loss of ___________________.

1. 3 dB

2. 3 dBm

3. 7 dB

4. 7 dBm

4.

The velocity of light traveling through a medium with a refractive index of ________________ has a velocity of approximately 225,000 km/s.

1. 1.15

2. 1.25

3. 1.33

4. 1.50

5.

The ___________________ is the layer of glass that surrounds the core of an optical fiber.

1. Buffer

2. Jacket

3. Coating

4. Cladding

6.

A path for light through an optical fiber is called a ___________________.

1. Mode

2. Route

3. Highway

4. Multimode

7.

Modal ___________________ in an optical fiber is when light rays take different paths through the optical fiber.

1. Mixing

2. Attenuation

3. Gain

4. Dispersion

8.

The laser light sources used in fiber optic communication have a longer ___________________ than visible light.

1. Frequency

2. Wavelength

3. Amplitude

4. Pulse

9.

Article ___________________ of the National Electric Code covers optical fiber cables and raceways.

1. 250

2. 660

3. 770

4. 810

10.

When the NA of the transmitting optical fiber is ___________________ than the receiving optical fiber, a ___________________ occurs.

1. Less, gain

2. Greater, loss

3. Less, loss

4. Greater, gain

11.

The connector with a PC finish has a(n) ___________________ endface geometry.

1. Flat

2. Rough

3. Angled

4. Rounded

12.

The polishing puck is designed to keep a connector ferrule with a UPC finish _______________ to the polishing...