1 Principio del formularioWhich of the following are special characteristics of plenum cable?

It burns rapidly but at a low temperature and with no toxic fumes.

It burns slowly and with no toxic fumes.

It does not burn and so produces no toxic fumes.

It burns rapidly but will only ignite at a very high temperature and does not produce toxic fumes.

2 Principio del formularioWhat is an essential tool to have on an upper floor when pulling backbone cable from an upper to a lower floor?

cable winch

Reel brake

Mouse

fish tape

3 Principio del formularioWhich methods are used to locate studs in a sheetrock, or drywall, room? (Choose two.)

using magnets

tapping the surface

nailing specific areas

using blueprints

using a stud finder

4 Principio del formularioWhere is the staging area normally situated?

near the offices needing the wire

near the telecommunications room

on the main floor of the building

on the top floor of the building

5 Principio del formularioWhat are the most common causes of microbends in a fiber-optic cable? (Choose two.)

imperfections in the cladding structure

Fiber-optic connectors twisted during installation

deviations of the axis of the cable from a straight line that will cause light to leak out of the fiber

imperfections on the cable outer jacket surface

mechanical stress on the cable that introduces local discontinuities

6 Principio del formularioWhat is the generally accepted maximum number of ninety degree bends in one run of conduit?

One

Two

Three

Tour

7 Principio del formulario

Which type of equipment is displayed in the photograph?

Bullwheel

quadrant block

Reel jack

Reel Soller

8 Principio del formularioWhat are some alternatives to a fish line when a cable must be pulled behind a drywall? (Choose two.)

use a weight and a string

use a surface mounted raceway

use flexible chains and magnets

Drop the cable down the drywall

install a conduit behind the wall

9 Principio del formularioWhich recommendations should be followed for a successful cutover? (Choose two.)

Randomly test at least 50% of the cables that are installed

keep detailed records of the installation

create accurate punch-lists

schedule the cutover when it is most convenient for the customer

record all the changes in the as-built drawings

10 Principio del formularioThe technician is working on a site where there is a conduit run from the outlet boxes to ceiling. Which procedure should be used to install the cable?

Run the cable from the outlet box through the conduit to the ceiling.

Drop the cable down the conduit until it meets the outlet box.

Drop a fish tape down the conduit so the cable can be pulled up.

Push a fish tape up the conduit so that the cable can be pulled down.

11 Principio del formularioWhen pulling a horizontal cable, which guideline should the cable installer follow?

Run the cable parallel to the walls

place the cable diagonally across the ceiling

Lay the cable directly on top of the ceiling tiles for support

route the cable through the air conditioning duct work for support

12 Principio del formularioDuring a visual inspection of a cable installation, it is noticed that a service loop of fiber optic has been left at a 90 degree turn. Where else would it be expected to see a service loop?

midpoint on a straight run

In the ceiling above an individual outlet

In the wall directly behind an individual outlet

every 18 m (60 ft)

13 Principio del formularioWhat is the difference between a swivel used in pulling cable and one that is used in pulling fiber-optic cable?

There is no difference.

The fiber-optic swivel can handle pulling tension exceeding 5000 pounds.

The fiber-optic swivel is designed to break away with pulling loads greater than 600 pounds.

The fiber-optic swivel can rotate even under heavy loads.

14 Principio del formularioWhen is the term cutting over used? (Choose two.)

when new services are added to an existing cable system

when the equipment of an existing cable system is upgraded

when new equipment is being installed on a newly-installed cable system

when new equipment is installed on an existing cable system

when the services running on an existing network are transferred to a new cable system

when various specialized cabling vendors are included on a newly-installed cable system

15 Principio del formularioA 10 m (33 ft) segment of 10 cm (4 in) conduit with a 90 degree bend is being installed. What is the standard radius that should be used for the bend?

20 cm (7.9 in)

35 cm (13.8 in)

45 cm (17.8 in)

60 cm (23.6 in)

16 Principio del formularioWhen fiber is pulled along a backbone, where will the cable installer leave service loops?

30-degree bends

45-degree bends

50-degree bends

60-degree bends

90-degree bends

17 Principio del formulario

Which fiber-optic component provides strength and protects the glass fibers?

A

B

C

D

E

18 Principio del formularioWhat is the purpose of a removable shaft on a pulley?

To remove a cable after pulling

To allow extra cables to be pulled

To keep any cable from breaking if tension goes beyond the limit

To allow installers to easily add or remove cables as they are pulling them

19 Principio del formularioDuring the rough-in phase of a wiring project, several wires are pulled from the staging area to individual work areas. Which other task should be accomplished during this phase?

The cable should be tested for standards compliance.

The cable should be labeled at both ends.

The cable should be terminated at both ends.

The cable should be terminated at the end that is not in the telecommunications room.

20 Principio del formularioA cable is being pulled and a 60 degree turn should be made. What would be an appropriate device to use?

Pulley

reel Soller

Swivel

Bullwheel