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Level 3, Mod 2 Exam Questions And
Answers 100% Guaranteed Pass.
What color is reserved for the hi-leg on 3-phase, 4 wire, delta system? - Answer✔orange
how much of a correction factor is needed for the ambient temperature of 40ºC? - Answer✔0.82
NEC 310.15 (B)(2)(A)
the most common conductors used for light and power installations range from - Answer✔4/0 -
14 AWG
what must be determined in considering the size of the conductor required to connect an
electrical load to the source of supply? - Answer✔permissable voltage drop
what is an acceptable method of identification for grounded conductors larger than NO. 6 AWG?
- Answer✔white or grey
physical properties of a 4/0 copper conductor found in? - Answer✔CH9, Table 8
what type of wire is least flexible? - Answer✔solid
a conductor has a diameter of 40 mils? what is the diameter in inches? - Answer✔.04"
square mil area of a conductor that is .250" - Answer✔62500 square mils
what is total resistance of a 2 wire circuit that spands a distance of 200' each way if the resistance
Per 1000' is 1.21 ohms? - Answer✔.0484 ohms
max voltage drop that you can have on a 277v circuit with the max voltage drop allowed is 3%? -
Answer✔8.3 volts
normal location to provide over-current protection is? - Answer✔where conductor receives
supply
correction factor needed if ambient temp is above? - Answer✔86ºF
3 or more wires? - Answer✔80%
correction factors found? - Answer✔310.15 (B)(2) (A and B)
grounded conductor? - Answer✔white or grey
1|Page
Level 3, Mod 2 Exam Questions And
Answers 100% Guaranteed Pass.
What color is reserved for the hi-leg on 3-phase, 4 wire, delta system? - Answer✔orange
how much of a correction factor is needed for the ambient temperature of 40ºC? - Answer✔0.82
NEC 310.15 (B)(2)(A)
the most common conductors used for light and power installations range from - Answer✔4/0 -
14 AWG
what must be determined in considering the size of the conductor required to connect an
electrical load to the source of supply? - Answer✔permissable voltage drop
what is an acceptable method of identification for grounded conductors larger than NO. 6 AWG?
- Answer✔white or grey
physical properties of a 4/0 copper conductor found in? - Answer✔CH9, Table 8
what type of wire is least flexible? - Answer✔solid
a conductor has a diameter of 40 mils? what is the diameter in inches? - Answer✔.04"
square mil area of a conductor that is .250" - Answer✔62500 square mils
what is total resistance of a 2 wire circuit that spands a distance of 200' each way if the resistance
Per 1000' is 1.21 ohms? - Answer✔.0484 ohms
max voltage drop that you can have on a 277v circuit with the max voltage drop allowed is 3%? -
Answer✔8.3 volts
normal location to provide over-current protection is? - Answer✔where conductor receives
supply
correction factor needed if ambient temp is above? - Answer✔86ºF
3 or more wires? - Answer✔80%
correction factors found? - Answer✔310.15 (B)(2) (A and B)
grounded conductor? - Answer✔white or grey
1|Page
