Electrical Code Final || with 100% Correct Answers.
What is the purpose of National Electrical Code? correct answers Practical safe-guarding of
persons/property from hazards involving electricity.
50+ lb light fixture installation requirements. correct answers Independently supported of outlet
box, UNLESS outlet box marked for the max weight.
Factors that must be taken into account when sizing boxes per NEC (4) correct answers -Cubic
inch volume allowance
-Using metal/plastic
-Conductors being different sizes
-A means for grounding
NEC definition of an outlet? correct answers A point on the wiring system at which current is
taken to supply utilization equipment.
Receptacle: correct answers A contact device installed at the outlet for the connection of an
attachment plug.
Receptacle outlet: correct answers An outlet where 1 or more receptacles are installed.
Why does the Code discourage mounting receptacles below edge of kitchen countertops? correct
answers Water
What is one potential problem with using higher temperature, higher ampacity wire? correct
answers Higher resistance
Type NM-B cable: correct answers Insulated conductors enclosed within an overall non-metallic
jacket, rate 90 degrees
Type NMC-B cable: correct answers Insulated conductors enclosed within an overall,
CORROSION resistant, non-metallic jacket.
NEC 310,15 (B)(3)(A) correct answers Cables bundled together for more than 24 inches must be
derated
Flexible metallic/non-metallic conduits use in residential construction (3): correct answers
Behind a finished wall:
-Motorized appliances
-Food waste disposals
-Washers/dryers subject to vibrations
4 kinds of lighting switches: correct answers -Single pole
-2 way
-3 way
What is the purpose of National Electrical Code? correct answers Practical safe-guarding of
persons/property from hazards involving electricity.
50+ lb light fixture installation requirements. correct answers Independently supported of outlet
box, UNLESS outlet box marked for the max weight.
Factors that must be taken into account when sizing boxes per NEC (4) correct answers -Cubic
inch volume allowance
-Using metal/plastic
-Conductors being different sizes
-A means for grounding
NEC definition of an outlet? correct answers A point on the wiring system at which current is
taken to supply utilization equipment.
Receptacle: correct answers A contact device installed at the outlet for the connection of an
attachment plug.
Receptacle outlet: correct answers An outlet where 1 or more receptacles are installed.
Why does the Code discourage mounting receptacles below edge of kitchen countertops? correct
answers Water
What is one potential problem with using higher temperature, higher ampacity wire? correct
answers Higher resistance
Type NM-B cable: correct answers Insulated conductors enclosed within an overall non-metallic
jacket, rate 90 degrees
Type NMC-B cable: correct answers Insulated conductors enclosed within an overall,
CORROSION resistant, non-metallic jacket.
NEC 310,15 (B)(3)(A) correct answers Cables bundled together for more than 24 inches must be
derated
Flexible metallic/non-metallic conduits use in residential construction (3): correct answers
Behind a finished wall:
-Motorized appliances
-Food waste disposals
-Washers/dryers subject to vibrations
4 kinds of lighting switches: correct answers -Single pole
-2 way
-3 way
