Final Flashcards
Final
A good conductor has how many valence electrons?
1
How many wires do we use to complete a 120v circuit?
3
What are the 4 letters of the ohm’s wheel?
E, I, R, and G
What does AWG stand for?
American Wire Gauges
What are the two most common bending angles used of offsets?
30 and 45
Which steel conduit has the thinnest walls?
EMT
What does EMT stand for?
Electrical Metallic Tubing
What three things must be present for a fire to start?
oxygen, fuel, and heat
A type c firee
What is the take up of a 3/4 hand bender, in inches?
6 inches
Any insulators, non good conductors, have how many valence electrons?
2 or more
What three things must occure for a fire to occure?
Oxygen, fluid, and heat
What are fire A extueiters used for?
Ordinary combustibles
What are type b fire exteriors used for?
Flammable liquid
What steel conduit has the thickest walls?
rigid
what steel conduit is in the middle?
Intermediate
A sign with green lettering, white background, and white lettering is what?
information sign
Symbol for ohm’s is referd to as what?
Omega
What is ohm’s measured in?
Why do we wear Cotten?
Dosent flare up(fire tartdent)
What is the 9th chapter of the NEC book?
Tables
277v circuit, what is the natural
Gray
What does a SDS do?
for chemicals, and if you use a chemical without one can result in a law suit.
what is the grounding conducter called?
The ground
What does OSHA stand for?
Occupational Safety and Health Administration
What does deduct also mean?
Stup up or take up
What is the take up/ deduct for a 1/2 hand bender?
5 inches
What is the take up for a 1 hand bender?
8 inches
What is the take up for a 1 and 1/4 hand bender?
11 inches
What is the Gain for a 1/2 hand bender?
2 1/2inches
What is the gain for a 3/4 Hand bender?
3 inches
What is the gain for a 1 hand bender?
3 15/16 inches
What is the gain for a 1 1/4 hand bender
4 5/8 inches
What is the back to back formula?
Stub 1 + sub 2 - gain(x2)
What is the offset for a 10 degree?
5.76
What is the offset for a 22 degree?
2.6
What is the offset for a 30 degree?
2
What is the offset for a 45 degree?
1.141
What is the offset for a 60 degree?
0.577
What is the shrink for a 10 degree?
.0625
What is the shrink for a 22 degree?
.2
What is the shrink for a 30 degree?
.27
What it the shrink for 45 degree?
.41
What is the shrink for a 60 degree?
1.15
What is gain?
Increase in length
What is E?
Electro motive force(driving force)
What is I?
Intensity flow
What is R?
Resistance
What is P?
Power
Symbol for E
V(voltage)
Symbol for I
A(Amps)
Symbol for R
n(ohms)
Symbol for p
W(wattage)
Calculate for electrical theory
P E
————
E I R
Symbol for a switch?
$
Symbol for a receptical
A circle with two lines
What is the ground conductor called?
The nuteral
Color of nuteral color of a 120/240v circuit?
White
Color of nuteral color if not a 120/240v circut
Gray
An impact drill has more ___ than a common drill
Torque
A piece of rigging hardwear used to couple the end of a wire rope to the eye fittings hooks, or other connections is a?
Hitch
4 most common accidents at job cites
Struck by, caught in, electrocution and falls
5 PPE items
Steal toe boots, hard hat, safety glasses, gloves, highvisim vest
What is used to connect a pice of EMT to a box?
Connector
What size wires are inside of the AWG 12/2 NM-B
14AWG
What measuring system does amarica use?
Imperial
What frequency does amrica run on?
60Hz
What wrench will most likely to fit one size of hardwear?
Combination wrench
What wrench will most likely to fit two/ more size of hardwear?
A cresent/adjustable wrench
Type c extinguishers
Electrical fires
Type d extinguishers
Combustible metals.
