Chapter 19

Question 1

what is an optical time domain relectometer5 (OTDR) used for?

Answer 1

it tests fiber optic cables by sending a series of optical pulses and then measures the light. p. 697

Question 2

what information do OTDR’s give us?

Answer 2

The fibers length
attenuation
location faults/breaks p. 697

Question 3

What does a multimeter do?

Answer 3

It can measure voltage, current, and resitance. They are used to troubleshoot in a variety of devices. p. 698

Question 4

what are some devices a multimeter may be used on.

Answer 4

Batteries, motor controls, appliances, power supplies and wiring systems. p. 698

Question 5

True or false: a toner probe is also called a generator.

Answer 5

True

Question 6

What is a toner probe used for?

Answer 6

Used to trace a wire down a wall.You can locate a specific connection in a punch down block. p. 698

Question 7

true or false: using a toner probe, testing the continuity of wires using alligator clips you can use a toner genreator and probe. An open wire wont produce a tone at the other end.

Answer 7

True p. 699

Question 8

true or false: using a toner probe, testing the continuity of wires using alligator clips you can use a toner genreator and probe a short will produce a tone on two or more wires at the other5 end.

Answer 8

True

Question 9

true or false: using a toner probe, testing the continuity of wires using alligator clips you can use a toner genreator and probe an improperly connected wire will produce a tone ont her wrong pin at the other end.

Answer 9

True p. 699

Question 10

what is a butt set?

Answer 10

A portable telephone that alows you to test analog wet or dry lines and is used to moinitor those lines. p. 700

Question 11

What is a punch down tool used for?

Answer 11

In twisted pair cable teh cable is usually terminated using a punch down tool. It punches down the wire into an insulation displacement connector. p. 701

Question 12

what is a wire crimper used for?

Answer 12

attaching ends onto cables. p. 702

Question 13

what does the voltage event recorder measure?

Answer 13

it can troubleshoot and provide prevenative maintenance in electrical systems. p. 703

Question 14

what do surge protectors do?

Answer 14

It monitors the voltage level and trips a crcuit breaker whent he voltage level reaches a certain level. p. 703

Question 15

what are some things you use a voltage event recorder for?

Answer 15

Recordign voltage
measureing distortion
Measuring flicker
Capturing voltage transients p. 703

Question 16

define flicker.

Answer 16

switching loads on lighting systems. p. 703

Question 17

what do environmental monitors measure?

Answer 17

temperature
humidity
power
air flow p. 703