In general a beginning tradesperson with little or no experience in the electrical field is known as a/an
apprentice
The proper angle for setting
... [Show More] up a ladder is to place its base a/an___________ of the working length of the ladder from the wall or other vertical surface.
quarter
A __________ fire extinguisher should be used on an electrical fire.
Class C
A person with a serious electrical injury should be moved
only if they are in immediate danger
When measuring an electrical circuit, current is measured in
amps
When referring to NM-B 12/3 wire, the number 12 refers to the
wire gage
The National Electrical Code (NEC) is based on
NFPA codes
According to the NEC, a continuous load is where the maximum current is expected to continue for _______ or more.
3 hours
In residential structures, GFCI is required in
kitchens
The National Electrical Code (NEC) term, "accessible," means that an electrical box can be
removed without damage to the building
If the lighting requirement is 3 volt-amps per square foot and a home is 40 feet by 90 feet, the required volt-amps for lighting would be
10,800 volt -amps
On a blueprint scale of 1/8 inch = 1 foot, a 3 1/2 inch length represents
28 feet
If the voltage source supplies 260 volts and the resistance measure 5 ohms, the current is
52 amps
In an AC circuit, if resistance remains the same and voltage is doubled, then current
is doubled
If the peak value of a given AC waveform is 2 volts, the RMS is
1.414 volts
The frequency of an AC waveform is 40 hertz. What is the period of each cycle?
25.0 mS
The outer most ring of an atom is called the _______ ring
valance
How many watts are dissipated by an electric heater that has unity power factor and draws 7.8 amps on a 240-volt line
1872 watts
Bored holes through wood members must be kept a minimum of ___________ from the nearest edge of the wood member
1 1/4 inches
What color wire can be used a s a hot wire if it is marked with three black stripes on each end?
white
The NEC states that a non-metallic sheathed cable with no cable clamps be secured by staples or straps within _________ from every cabinet, box or fitting.
8 inches [Show Less]