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Residential Wiring Exam Questions with correct Answers
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Residential Wiring Exam Questions with correct Answers
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Residential Wiring Exam Questions withcorrect Answers
The silver screws on an electrical outlet are used to connect the _________________
to the device. - Answer -neutral wire
The neutral wire is what color? - Answer -white
The voltage between L1 and L2 in a residential service is? - Answer -240 volts
once a wire is stripped and shaped into a hook, in what direction is it placed on the
terminal screw of a wiring device? - Answer -clockwise
A common name for nonmetallic sheathed cable is? - Answer -romex
What are the three most common device symbols used in a residential electrical
drawing? - Answer -receptacles, light fixtures, and switches
A neutral wire from the SEP connects to what color screw on a receptacle? - Answer -
silver
What color is the line conductor in a 14-2 WG coming from the SEP? - Answer -black
Neutral is what color in the non-metallic sheath cable? - Answer -white
What happens in a series circuit to voltage and current? - Answer -voltage divides,
current stays the same.
What color screws on a receptacle do you connect the black line wire to? - Answer -
brass
What is another name for the un-grounded conductor? - Answer -line
Wire nuts work with solid and __________________ wires. - Answer -stranded
What is the difference between a split receptacle and a normal outlet? - Answer -split
receptacle has the tie-bar cut on the line side.
, What would the maximum ampacity of a plug fuse be if the fuses has a hexagonal (six
sided) window on the fuse? - Answer -15 amps
On Romex cable marked 14/3 WG, What do the numbers and letters mean? - Answer -
14 gauge wire, 3 conductors, "with ground".
When using aluminum wire instead of copper, a #12 AWG copper conductor would
have to be replaced with what size of aluminum conductor? - Answer -#10 AWG
What is the maximum number of #14 AWG wires that can be in a 3" x 2" x 2" device
box? - Answer -5
What are the two reasons man hole covers are round? - Answer -so they can be rolled,
and so they cannot fall in to the man hole.
Electrical wire size is expressed in ___________________? - Answer -AWG - american
wire gauge
What is the rule of thumb for a neutral conductor? - Answer -neutral is always white, but
white is not always neutral.
What, or who, determines the circuit breaker size needed to protect a circuit? - Answer -
wire size
The current capacity of a conductor depends on two things. What are they? - Answer -
the size of the wire, and the material it is made of.
When using aluminum conductors in place of copper conductors, the aluminum
conductor must be sized how many trade sizes larger than copper conductors? -
Answer -1 size larger
A safety device that automatically shuts off power in the event of an overload or short,
and can be reset is called a? - Answer -circuit breaker
Split bolt conductors are usually used to? - Answer -splice heavy gauge wires
In what power source is there usually a "wild leg"? - Answer -240/120 volt 3-phase
Another name for a conductor is? - Answer -wire
What happens in a parallel circuit to voltage and current? - Answer -voltage stays the
same, current divides.
According to OHM's power law: - Answer -Watts is equal to volts times amps. (P = E * I)
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