Conductors and Cables

____maximum of four conductors, plus a grounding conductor, and comes in sizes from 14 AWG to 1 AWG.

AC cable has a

The difference between ___ cable and ___ cable is. ____ cable has fire-retardant wraps on individual conductors; ____ cable does not

AC, MC

Type _______ cable is flat conductor cable.

FCC

In some case, fixture wires may be used as a substitute for branch circuit conductors? True or False?

False

A hand device used to pull a wire through a conduit run.

Fish tape

A cylinder of foam rubber that fits inside the conduit and is then propelled by compressed air or vacuumed through the conduit run, pulling a line or tape.

Mouse

Type______ cable is power and control tray cable.

TC

What service conductor may be bare, green, or green with a yellow stripe?

The grounding conductor of a multi-conductor cable

A conductor's size refers to the cross-sectional area of both the current-carrying wire and the insulation. True or False?

True

The cable that is used for feeders and branch circuits is _____.

Type MC

Which of the following types of cables may be installed in concealed locations?

Type NM and NMC

Which of the following types of cable is suitable for direct burial?

Type UF

What letter must be included in the marking of a conductor if it is to be used in a wet outdoor application?

W

Type NMS cable is described as _____.

a. nonmetallic-sheathed cable

Type SE cable may be used ________ .

above ground only

two material for wire is ____.

aluminum & copper

It is important to do which of the following when conductors are fed into long runs of conduit?

c. Make sure the wires are straight and do not cross over each other.

In two-conductor cable, the high side or hot wire is _____.

c. black

Which of the following cables should include a yellow color-coded conductor?

d. Five-conductor cable

type NMC cable is suitable for all of the following?

dry locations, damp locations and corrosive locations

Type MC cable may be used _________.

for services, feeders, and branch circuits

Instrumentation wiring shielding is usually ________.

grounded at one end only

A pulling line is usually made of ?

nylon or other synthetic material

Copper is the most widely used conductor because it __________.

offers low resistance and is easy to use

The availability of a substance such as aluminum or copper affects the____ of the finished product (copper or aluminum wire).

price

In the standard system of wire sizes in the United States, from No. 50 through No. 1, the larger the number, the __________.

smaller the wire

Ampacity is the current in amperes a conductor can carry continuously under the conditions of use without exceeding its ____.

temperature rating

Compact stranding is used

with aluminum conductors

The current in amperes that a conductor can carry continuously under the conditions of use without exceeding its temperature rating.

Ampacity

A grounding wire may be which of the following colors?

Green

Which of the following describes Type TC cable?

It consists of two or more insulated conductor twisted together and covered with a nonmetallic jacket.

____no limitations on the number of conductors, and is sized from 18 AWG to 2,000 kcmil.

MC cable has

A type of thermoset insulation is

RHW

A device used to link pulling rope to cable during a pull

Wire grip

A typical color used for the Five conductor of a power cable is ______.

Yellow

A typical color used for the fourth conductor of a power cable is ______.

blue

Conductivity describes the ease (or difficulty) of travel presented to an electric current by a _____.

conductor

To prevent unwanted ground loops, instrument wiring is___.

not grounded at both ends of the wire

The selection of fixture wire depends primarily on the _________.

operating temperature of the circuit

Type UF cable may be used _________.

underground and in direct burial situations

Type USE cable can be used for ?

underground installation including direct burial

Cable markings show _______.

voltage rating

A circular mil is a circle that has a diameter of 1 mil. A mil is ____.

0.001 inch

NEC Table 310.16 covers conductors rated up to ____where not more than three conductors are installed in a raceway or cable or are directly buried in the earth, based on an ambient temperature of 30°C (86°F).

2,000 volts

The standard system of wire sizes in the United States is the ________.

American Wire Gauge

Which size wire has the greatest cross-sectional area?

0000

The NEC® specifies a minimum of ____ for connections made to wiring devices or for splices.

6"

The reason for choosing ___,___and___ strands for stranded conductors is that it is necessary to provide a flexible, almost round conductor.

7, 19, and 37

When feeding conductors into long runs of conduit, it is important to apply lubricant to the conductors only, never to the conduit. True or False?

False

What is the primary difference between ____ and ____ cable?___ is for dry environments only; ___ is for both dry and damp locations.

NM , NMC

The maximum size solid wire that should be terminated in pull boxes and disconnects is

No.8

What are the colors of insulation on the conductors for a three-conductor NM cable?

One white or gray, one red, one black, and a grounding conductor

Which of the following increases the flexibility of a wire?

a. Stranding

Size 4/0 wire has a ______.

a. greater cross-sectional area than size 3/0

All of the following help to determine how good a material will be for the construction of wire

availability, cost, conductivity

The grounding wire may be _______.

bare

The value of a material as an ingredient for wire is determined by several factors, including ____.

conductivity, cost, availability, and workability.

In addition to being both flame-retardant and moisture-resistant, what characteristic does Type NMC cable have?

d. It is fungus- and corrosion-resistant.

Which of the following is not shown with cable markings?

d. Prohibited uses

The operating temperature of the circuit is a primary factor in the selection of a _____.

d. fixture wire

The difference between AC cable and MC cable is ___?

embedding in concrete

The different sizes of wire and cable. The larger the cross-sectional area of current-carrying portion of a conductor, the _____.

higher the amount of current the wire can conduct

The purpose of stranding is to_____.

increase wìre flexibility

NM and NMU cables may be ______.

installed in concealed locations

Polyethylene (PE) is used primarily for

insulation of control and communication wiring

A factor not used in selecting conductors is the conductor's _________.

length

When conductors are led into long runs of conduit, it is important to_____.

make sure the wires are straight and do not cross over each other

NEC Table 310.17 covers both copper conductors and aluminum or copper-clad aluminum conductors up to 2,000 volts where conductors are used as ____, based on an ambient temperature of 30°C (86°F).

single conductors in free air

A conductor's operating temperature is not determined by

the number of conductor strands

The different sizes of wire and cable. The larger the number, _______.

the smaller the cross-sectional area of the wire

The turning drum of the cable puller on which the rope is wrapped and pulled.

Capstan

When used as a service-entrance cable, Type SE cable must be installed as specified in which Article_______.

NEC Article 230

Type NM and NMC cables are found in NEC article...

NEC Article 334

To determine the ampacity of copper conductors where conductors are used as a single conductor in free air at ambient temperatures of 30°C, use

NEC Table 310.17

Where can you find the ampacity of conductors for given conditions?

NEC Tables 310.15 (B)(16) through 310.15 (B)(21)

The ampacity ratings of conductors can be found in

NEC Tables 310.16 through 310.19

Type ____ cable is nonmetallic-sheathed cable.

NMS