It is the ______ that is the harmful components of the electrical curcuitcircuit circuit

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The screw size for typical lighting outlet boxes is No. 8-32. The larger number, 32, refers to the ______.

"pitch" of the thread Diameter of the screw

For both metallic and nonmetallic electric outlet boxes, the maximum gap between the box and the wall material allowed is____ in.

1/8"

How long must a hallway be to require a receptacle per the NEC? Also give code reference.

10' 210.52(H)

Four or fewer luminaire conductors, smaller than _____ AWG, and/or small equipment grounding conductors that originate in the luminaire and terminate in the box, need not be counted when calculating box fill.

14 AWG

The most current addition of the NEC is 2023, what year will the next edition of the NEC be?

2026.

How many amps is a type THHW 90°C - 4/0 aluminum conductor rated for?

205

An arc flash can produce temperatures of _____*F.

35,000

Name the four main types of electrical injuries

Burns, Falls, cut, broken bones, internal hemorrhages (кровоизлияние), Distraction of tissues

If a box is not flush with the finished surface (as a result of improper installation) or if paneling, drywall, tile, or a mirror is added, then install a box extender, sometimes referred to as a "goof _____."

ring

Each installation for a physically challenged person must be based on _____.

the specific needs of the individual who will occupy the home

What was rule #3 that I mentioned in class?

Everything must be tight.

What does article 314.4 states?

Metal boxes shall be grounded and bonded in accordance with Art 250??

For on-the-job safety, - puts the burden of responsibility on the employer and can impose large fines for noncompliance with its safety rules.

OSHA

What is installed around the box?

Putty

On an architectural plan, a circle with the letters R in it represents a a. surface or pendant exit

Recessed incandescent

A popular method of fastening wall and ceiling boxes in existing walls and ceilings is to use boxes that have plaster ears.

True

Lockout/tagout (sometimes called LOTO) is the physical restraint of all hazardous energy sources that supply power to a piece of equipment.

True

On large electrical installations, an arc flash can generate temperatures of 35,000°F (19,427°C), which is hotter than the surface on the sun.

True

The typical height for switches is 46 in., although some homeowners will want wall switches mounted 30-36 in. so as to be easy for children to reach.

True

The voltage level in a home is 120 volts between one "hot" conductor and the "neutral conductor, or grounded surface.

True

Can you use a 15-amp receptacle on a 20-amp small appliance branch circuit?

True.

One of the most far-reaching NEC rules is 110.3(B), which states that equipment shall be installed and used in accordance with any instructions included in the listing or labeling.

listed or labeled


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