11
The __________ is an organization that develops electrical equipment standards that all member groups follow when designing and producing electrical equipment.
National Electrical Manufacturers Association(NEMA)
Overhead conductors ____ permitted to be supported by trees.
are not
A __________ can be used to strip the outside metal coverings from common sizes of Type AC or Type MC cable.
rotary cable cutter
In a series circuit, the sum of the voltage drops is _____ the applied voltage.
equal to
An increase in _____, not resistance, results in an increase of load.
current
A(n) __________ is used to pull wire and cables through conduit and to pull cables in insulated walls
fish tape/snake
Which switch type is rarely used in residential wiring?
double pole
__________ are frequencies that are multiples of the fundamental 60 hertz frequency.
Harmonics
Which of the following are names for the building plans used by craftspeople when they build houses?
Working drawings
Blueprints
Construction drawings
All of the above
all of the above
Luminaire is a term that refers to ____.
incandescent lighting fixtures
fluorescent lighting fixtures
outdoor pole-mounted fixtures
all of the these
all of these
A(n) ________ is a power tool specially engineered to do one job: drive screws, which it does faster and easier than any other tool.
impact driver
A _____ is a type of electrical panel that contains the main disconnecting means for the residential service entrance as well as the fuses or circuit breakers used to protect circuits and equipment like electric water heaters, ranges, dryers, and lighting.
load center
The NEC® requires rigid metal conduit to be supported within __________ feet of each box and then no more than every __________ feet thereafter (general rule).
3,10
An electric motor is running on 120 V. The current is measured to be 2 A. How many ohms of resistance is the motor?
60
A(n) __________ shows information such as the location of a house, walkway, or driveway on the building lot.
Plot plan
Which rule of thumb can be followed when planning branch circuits for dwelling units?
load circuits to no more than 80% of their rating
The maximum volt-ampere loading permitted on a 20-ampere branch circuit with a continuous load is ____ watts (volt-amperes).
1920
Ceiling-suspended paddle fans must not be located within a zone measured ____ horizontally and ____ vertically from the top of the bathtub rim or top of a shower stall threshold.
3',8'
The grounded (identified) conductor of 6 AWG or smaller must have an outer finish that is ____.
three continuous white strips
white
gray
any of these options
all
_________ are used to form small conductors, cut conductors, and to hold and pull conductors.
Long-nosed pliers
According to NEC 406.9, receptacles ____ permitted to be installed in bathtub and shower spaces.
are not
Which of the following is NOT a reason that ceiling fans must be specially supported?
Safe grounding
The amount of electrical power being used in a circuit is measured in ____.
watts
A three-branch parallel circuit has a total resistance of 385.83 Ω. Two of the resistors are 680 Ω and 1500 Ω. What is the value of the third resistor?
2200
A screwdriver style that is popular with residential electricians is the ________ screwdriver, because it is designed to hold on to screws for easier starting and setting of screws in hard to reach places.
screw-holding