**Friday Nov 1, 2013 questions**

Question 1

Made of a silica glass and is roughly the size of a human hair.

Answer 1

Fiber Optic Cable

Question 2

Performs the same splitting or combing function as an RF splitter but they do it at the light wave level.

Answer 2

Optical splitters / combiners

Question 3

Allows multiple wavelengths, above and below a center wavelength, to be carried on a single optical fiber.

Answer 3

Dense Wave Division Multiplexing

Question 4

What are the three most common types of Laser Transmitters?

Answer 4

Fabry-Perot (F-P), Distributed Feedback (DFB), Yttirum-Aluminum-Garnet (YAG)

Question 5

oden - word jumble

Answer 5

node

Question 6

fwrmoeav - word jumble

Answer 6

waveform

Question 7

lxpide trelif

Answer 7

diplex filter

Question 8

What is the clearance for power at the mid-span?

Answer 8

24 inches

Question 9

What does Article 820 of the National Electrical Code refer to?

Answer 9

The minimum requirements of all aerial drops.

Question 10

With only cable on the pole, how many inches to the left and right of the center of the pole should the straps and spacers be placed?

Answer 10

14 inches

Question 11

How is the vertical deflection of an oscilloscope measured?

Answer 11

Volts per division.

Question 12

What level of DC voltage would you expect to find at an amplifier DC test point?

Answer 12

Between 24 - 28VDC

Question 13

When testing batteries in a standby power supply, the difference in voltage levels should be no more than how many VDC?

Answer 13

0.3 VDC

Question 14

Which 2 wires transmit using the T568A standard?

Answer 14

white green, green

Question 15

How many test points are required by the FCC for every 45,000 customers?

Answer 15

9

Question 16

What frequency range must a spectrum analyzer have in order to align satellite dishes?

Answer 16

950MHz - 1450MHz

Question 17

For high resolution traces, how many sweep points may be entered for each 6MHz segment of bandwidth?

Answer 17

Up to 3

Question 18

What is the minimum/maximum level of a leak that must be fixed within 72 hours?

Answer 18

20-149 uV/M

Question 19

What is the term used to define an electrical process that combines several individual signals into a single medium?

Answer 19

Multiplex

Question 20

What is the forward bandwidth that must be supported by all active and passive equipment?

Answer 20

54 MHz to 1,002 MHz

Question 21

If the input level (in dBmV) numerically equals an amplifier’s noise figure, what will the output C/N be?

Answer 21

59.2 dB (+/-.5db)

Question 22

What transmitter component changes RF signals to pulses of light?

Answer 22

Semiconductor Laser Diode

Question 23

At 64 Kbps, what is the sample rate per second in the G.711 PCM encoding scheme?

Answer 23

8,000 per second

Question 24

Relative to time and “eye lead time,” how far in advance is the recommended scan while driving?

Answer 24

12 to 15 seconds

Question 25

What is the term for the peak value of an AC waveform?

Answer 25

Amplitude

Question 26

What is the formula to determine wavelength?

Answer 26

Frequency divided by the Speed of Light

Question 27

What is the web address to access the configuration screens for the Business Internet gateway?

Answer 27

http://IPAddress:8080

Question 28

In a typical on-hook state, what is the level of ring wire voltage?

Answer 28

-48V

Question 29

In a typical off-hook state, what is the level of tip wire voltage?

Answer 29

-20V

Question 30

What is the frequency range typically applied to ring voltage?

Answer 30

20-25 Hz

Question 31

How does bonding limit potentially lethal voltage that may be present on the drop cable from external sources?

Answer 31

Through equalization of potential between Comcast services and other utility services at the home