Final

Pataasin ang iyong marka sa homework at exams ngayon gamit ang Quizwiz!

Boxes must be mounted so that they will be set back no more than ________from the face of the surface material

1/4 inch

Mounting nails or screws through a box shall not be more than _______from the back or ends of the box

1/4 inch

The metallic outlet or switch box shall be securely fastened to the studs and the opening in the wall board facing shall be out so that the clearance between the box in the wall board does not exceed_____

1/8 inch

What wire is preferred in a raceway?

10 AWG

Receptacles outside need to be placed not less than ______ from water

10 feet

Hallways ______ or longer must have atleast ______ receptacle outlet.

10 feet , one

Age dimming switches _______ before dimming

100 hours

For wall countertop and Work surfaces receptacles must be installed above all countertop spaces _______ or wider

12 inches

Height for receptacles in finished basements ?

12 inches

Height of Regular receptacle outlets

12 inches

The cable must be stapled or strapped not more than _____ from a box or fitting

12 inches

The receptacle is not permitted to be located more than ______ below the top of the basin

12 inches

What is the minimum conductor size for branch circuit wiring?

14 AWG

How many amps for 14 AWG?

15

the maximum current of the motor in locked rotor condition must not exceed ____

15 amperes

Glass lining is baked at ?

1600 degrees

Height for receptacles outdoors?

18 inches

Receptacles located in the floor more than ______ from the wall or not to be counted as meeting the required number of wall receptacle outlets

18 inches

Luminaries installed in the ceiling approximately ______ from the edge of the cabinets , spaced about ________ apart

18 inches , 3-4 feet

A flexible cord must not be less than _______ and not over ______ in length

18 inches , 36 inches

Countertop receptacles must be served by at least _____ 20 amp small appliance circuits

2

Wall space is any space ______ or more in width including corners

2 feet

How many amps for 12 AWG?

20

For metal boxes to maintain the hourly fire rating of a fire rated wall that contains electrical outlets and switch boxes __________ are used to wrap around the boxes and when heated they expand and char sealing off the opening to spread flames

Putty pads

Heaviest thickest conduit

RMC

Outdoor receptacles must be ______and not more than ______above grade

Readily accessible and 6 and a half feet

How do you convert a split wire receptacle

Remove the tab between the two ungrounded conductor terminals

RMC

Rigid Metal Conduit

Where there are _____stair risers or more on an interior stairway the NEC requires that wall switch controlled stairway lighting must be provided on each floor level

Six

The higher the AWG number the _______ the wire

Smaller

Include ____ with each set of plans

Specifications

Direct buried conductors or cables shall be permitted to be _____

Spliced or tapped without the the use of splice boxes

The architect uses _______ To simplify the drawing and presentation of information concerning electrical devices appliances and equipment

Symbols and notations

Where can you find minimum cover requirements (how deep to bury) in the NEC?

Table 300.5

Lighting track is required to be supported _____ of the track is not more than four feet and shall have _____ additional support(s) for each additional 4 feet of track

Twice , one

Type ______ is Underground feeder and branch circuit cable

UF

3 nationally recognized testing laboratories

UL, Intertek, CSA

What should nonmetallic boxes be marked with?

UL, the hour rating , the letters F, W, or C

Most common places for an electrical panel

Utility room and garage

If you are experiencing to much lamp burnout in your garage door opener, the culprit is probably _____ and _______ are available

Vibration , garage door opener lamps (rough service bulbs)

All 125 V 15 and 20 amp receptacle mounted outdoors are required to be_______

Weather proof and GFCI protected

What is required for a receptacle in the middle of a yard?

Weather resistant, bubble cover, and two pieces of conduit.

Are cables permitted in raceways ?

Yes

Do bathroom receptacles have to be GFCI protected?

Yes

Do bedrooms require GFCI protection ?

Yes

Is AFCI protection required in kitchens ?

Yes

Is GFCI protection required in unfinished basements?

Yes

When placing receptacles by a workbench ...

You should raise them higher

The intervals between straps and staples must not exceed ______

4 and a half feet

Unsupported cables is not more than _____ from the last point of cane support to the point of connection to a luminaire.

4 and a half feet

Type NM cable may be run in unsupported lengths of not more than ________ between the last point of the cable and a luminaire

4 and half feet

Height for Switches and receptacles between counter and kitchen cabinets ?

44-46 inches

Some inspectors consider the area within a _____angle from a roofline or overhang to be a damp location and outside the _____angle to be a wet location

45°

All receptacles and switches in the garage are to be mounted ______ to center

46 inches

Height for Receptacles in garages?

46 inches

Height for receptacles in unfinished basements ?

46 inches

Regular switch height?

46 inches

What is the maximum current draw for a typical overhead door operator ?

5 amperes excluding the lights.

Height for inside wall brackets ?

5 feet

Push buttons should be installed at least ______ or higher above the garage floor

5 feet

Some communities have amendments to the basic building codes such as requiring ________gypsum wallboard instead of the normal ________on the ceilings and on the walls between the garage and living areas and requiring draft stopping where ducts, cables, and piping run through the bottom and top plates

5/8 inch , 1/2 inch

NEMA 10-50

50 ampere 3 wire

NEMA 14-50

50 ampere 4 wire

How many amperes for ranges?

50 amperes

Special lamps and ballast are required at temperatures below

50-60 degrees

Length for cable

6 feet

Receptacle outlets must be installed so that no point along the floor line in any wall space more than ________measured horizontally from an outlet in that space including any wall space 24 inches or more in width

6 feet

Receptacles within ______ from the top inside edge of the bowl of the sink must be GFCI protected

6 feet

Wall receptacles must be placed so that no point measured horizontally along the floor line in any wall space is more than ______ from a receptacle

6 feet

The photoelectric sensor must be mounted not higher than _______ above the garage floor.

6 in

Allow not less than ______ Of conductor from where the conductors emerge from Kabel Raceway to the end of the conductor

6 inches

How far should baseboard receptacles be off the floor?

6 inches

What are the 3 most common screw sizes

6-32 , 8-32, and 10-32

What column do you use for MN cable?

60 degree column

What is the maximum length of a fixture whip?

6ft

What is the maximum length of the power supply cord ?

6ft

Receptacles are required to be installed within ______ of the top inside edge of the bowl of a sink and be _______

6ft and GFCI protected

Height for outdoor luminaries ?

72 inches

NEC 310.106 (C) requires that unless permitted elsewhere in the code , conductors _______and larger must be stranded where installed in a raceway.

8 AWG

Portable lighting track must not be longer than _____ and have a cord not less than _____

8 feet , 5 feet

What is the freezer on?

A general purpose circuit

Sound rating

A-F a is quietest and F is loudest

In a rec room , these branch circuits are required to have _______ protection

AFCI

What authority enforced the requirements set by the NEC ?

AHJ

The _______ of the branch circuit over current protective device determines the rating of the branch circuit

Ampere rating

Receptacles of 15 and 20 amperes installed in a wet location shall have what?

An enclosure that is weather proof and identified as "extra-duty"

Low-voltage lighting systems shall consist of ___

An isolating power supply rated for 25 amperes maximum

The inner edge of the bend shall have a minimum radius ___________ the cable diameter

Not less than five times

Where are receptacles required in a garage?

Not more than 5 and a half feet above the floor

At least ________wall switch controlled lighting outlet must be installed on the exterior of outside entrances

One

At least _____receptacle outlet is required that is accessible from the balcony ,deck ,or porch

One

Atleast ______ wall switch(es) -controlled lighting outlet shall be installed I'm the garage

One

Atleast _______ switch controlled Lighting outlet must be installed in spaces that are used for storage such as attics ,underfloor spaces, utility rooms, and basements.

One

In basements at least _______ receptacle outlet must be installed in addition to the laundry outlet

One

The workshop needs atleast _____ receptacle(s)

One

Detached garages do not require electrical power but if it does have electrical power then it must have at least _________ receptacle in a wall switch controlled light

One GFCI

How many receptacles are required for outdoors

One in the front and one in the back

Each garage door needs what?

One receptacle from each bay

NEC 210.52(H) requires atleast ____ receptacle in a hallway ____ or more

One, 10 feet

To allow for the possibility that the contractor will not always be able to obtain the specified item the phrase ________ is usually added after the manufacturer's name in catalogue number

Or equivalent

3 methods for lighting load

Outlets per circuit method, per square foot method , 80 percent rule

The ampacity of a conductor generally must not be less than the rating of the ________ protecting that conductor

Overcurrent device

General use dimmer switches shall be used only to control ____________________

Permanently installed incandescent luminaries

Shall be permitted or shall not be permitted

Permissive rules

4 ballast types

Preheat, rapid start , instant start, dimming

Receptacles can't be more than _____ over counter tops

20 inches

Boxes located on opposite sides of the walls shall be separated by a minimum horizontal distance of ______

24 inches

Receptacles above wall countertops and work surfaces spaces must be positioned so that no point along the wall line is more than ______measured horizontally from a receptacle outlet in that space

24 inches

In the kitchen AFC I protection is not required for appliances that are supplied by Branch circuits rated at _______such as ranges, cooktops, and built in ovens

240 volts

The minimum lighting load requirement for dwelling units is _____ volt amperes per square foot

3

The allowable ampacity values in the tables are valid where there are no more than _________ in a raceway or cable and where the temperature does not exceed_________

3 current carrying conductors , 86 degrees

Foyers require a receptacle located in each wall space _____ or more in width

3 feet

The receptacle outlet is required to be located in dwelling units within ______ of the outside edge of each basin

3 feet

NEC 410.10(D) does not permit cord connected luminaires or fans to be located within a zone measured ______ horizontally and _______vertically from the top of a bathroom or top of the shower stall threshold

3 feet, 8 feet

Allow not less than _____ of conductor Measured from the front edge of opening to the end of conductor

3 inches

How many amps for 10 AWG?

30

NEMA 10-30

30 ampere 3 wire

NEMA 14-30

30 ampere 4 wire

How many amperes for a dryer ?

30 amperes

What is the clearances for the electrical panel ?

30 inch clearance from the sides and 36 inch clearance in front of it .

Low-voltage lighting systems operate at

30 volts or less

Raceways (are or are not) required to be completely installed between boxes before putting in the wires

Are

What ampere branch circuit shall be installed to supply receptacle outlets in the garage ?

At least one 120 volt , 20 ampere branch circuit

Whenever we install an electrical panel it has to be _______

Balanced

Why would you want to place more than enough receptacles in the garage ?

Because it has fire rated walls and ceilings and it would make it hard to put in receptacles later.

What's the advantage of a submersible pump cable ?

Bigger wattage

The _______ shownThe required number of conductors between outlets and switches

Cable layouts

Aluminum or magnetism anode rods are installed in special openings to allow for the flow of protective current from the rods to any exposed steel of the tank

Cathodic protection

______Refer to the number of threads per inch

Coarse and Fine

120 gallon or less shall be considered a ______

Continuous load

All conduit installed underground must be protected against ______

Corrosion

3 connection methods of ranges

Direct connection, junction box, cord and plug connection

The grounded conductor is not required at the _____________ because the switch does not control a luminaire in a habitable room

Doorjumb switch

Thin wall can't be threaded

EMT

3 maint types of conduit

EMT, IMC, RMC

Advantages and disadvantages of the panel being in the garage

Easier to get to, but longer runs for the dryer , and oven.

EMT

Electrical metallic tubing

________ Show the location and type of electrical device required

Electrical symbols

Receptacles are not permitted to be ______ in countertops or work surfaces

Face up

Always _____ the tank before turning it on, and never set above ______

Fill, 120 degrees

In walls or ceilings where the surface material is combustible boxes, plaster rings, domed covers , extension rings ,or listed extenders shall be set ______with or extend from the surface

Flush

Common cord and plug connections

Fridge, microwave, oven, dishwasher, garbage disposal

Garages must have ______ protection

GFCI

What is required in the workshop?

GFCI protection

Two most common heated water pumps

Gas or electric

4 types of residential lighting

General , task, accent , security

The earth shall not be considered as an effective _______

Ground - fault current path

Secondary circuits shall not be _____

Grounded

The secondary circuit shall be _____

Insulated from the branch circuit by an isolating transformer

IMC

Intermediate Metal Conduit

How was track lighting in residences calculated ?

It is considered to be part of the general lighting load of 3 V amps per square foot

What is the drawback of fluorescent lighting in garages?

It will flicker or not work at all because it's cold/ not heated in the garage.

Two types of water pumps

Jet and submersible

MCM

KCMIL

What lights work extremely well in cold temperatures ?

LED

Where can you get a permit

Local jurisdiction

What is wall washing?

Luminaries are installed in a row

Shall or shall not

Mandatory rules

Lighting track is required to be installed according to the ________ instructions

Manufactures

Must show the appliances rating in volts and amperes or in volts and watts

Nameplate on appliance

Are sliding glass panels considered wall space ?

No

Can a range hood be cord and plug connected?

No

Do unfinished basements have to follow the spacing requirements for receptacles?

No

Does a detached garage require electric power or lights?

No

Does the NEC require luminaries in a clothes closet ?

No

Does the garage follow the 6/12 rule?

No

Does the garage need AFCI protection?

No

Is there exceptions to the GFCI rule in garages?

No

Should you put GFCI protection on the receptacle in the garage on the ceiling ? Why or why not?

No because if it trips it's hard to reach

Is GFCI protection required in finished basements?

No unless near a sink

A grounded conductor shall not be connected to

Normally non-current-carrying metal parts of equipment, to equipment grounding conductors, or be reconnected to ground on the load side.

What is a Simple way to determine the diameter of a lamp at its widest measurement ?

The eights of an inch rule

What controls the water staying in the heat pump?

The foot valve

Where should the placement of a receptacle be for the garage door?

The height of the garage door plus 3 feet

What has to be on its own circuit ?

The washer

Examples of buildings that require fire resistant ratings

Townhouses , apartments,


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