A
What term is for material that does not allow electricity to flow?
insulator
T/F Devices come from the factory equipped with 8-32 screws?
False
What is the harmful component of an electrical circuit?
Current
touching energized conductors causes?
Electrical shock
What color is 14/3 Romex?
Blue
What is the shape of lines that represent wlectrical wiring?
Curved
Standard residential power in the Unite States operates at how many hertz?
60 hz
What kind of jewelry can you wear while working in the industry?
Silicone or none!
Nonmetallic boxes are typically stamped with the ____ of the box
internal volume
What is it called when someone dies from an electrical shock?
Electrocuted
Electricians must be able to visualize the 2-dimensional plans which will help them do what?
Visualize
T/F Can states, local municipalities or inspection agencies make amendments and changes to the national code?
When mounting a receptacle what is the standard height range?
12-18 inches
Where are you going to find info on an AFCI in the code book?
210.12
Do human bodies use electrical signals to function?
Yes
what size Romex would you use for a 55 amp branch circuit?
6
Homeowners choose what luminaires they would want installed in their house. What info does the electrician need to know so that they can be positioned correctly?
Size and weight
Circuits and conductors are not considered safe until?
a qualified person places them in an electrically safe condition
Which metal is known as the best overall conductor of electricity?
Silver(copper is most commonly used because it is cheaper)
Article 310.12 states single family dwellings service conductors are adjusted by what percentage?
83
NEC article 90 says, in part: The code is not intended as a design specification or _____ for an untrained persons
Instruction manual
The NEC also states, in Article 90: Compliance therewith and proper maintenance result in an installation that is essentially free from hazard but not necessarily adequate for good service or future expansion of electrical use or
efficient and convenient
Who proved that lightening is a form of natural electricity?
Ben Franklin
NEC 314.16 states that boxes should be large enough to provide _______
ample room
Which article in section 334 states the requirements of securing and supporting
334.30