Question 1

According to Section 310.15(B)(7) in the NEC, the minimum conductor size for a 300-ampere residential service entrance is _________ Cu or _________ Al.

Accepted Answer

A)  2 AWG; 1/0 AWG 
B)  2/0 AWG; 4/0 AWG 
C)  250 kcmil; 350 kcmil 
D)  400 kcmil; 600 kcmil

Question 2

In residential wiring, which of the following house areas does not have its power supplied by a small appliance circuit?

Accepted Answer

A)  Bathroom 
B)  Dining room 
C)  Kitchen 
D)  Pantry

Question 3

Which of the following is not permitted to be connected to a small appliance branch circuit?

Accepted Answer

A)  Refrigerator 
B)  Electric clock 
C)  Gas stove 
D)  Kitchen lighting fixture

Question 4

A circuit that consists of two or more ungrounded conductors that have a voltage between them, and a grounded conductor that has equal voltage between it and each ungrounded conductor of the circuit is called a multiwire circuit.

Accepted Answer

A) True 
 B)False

Question 5

A house will have a counter-mounted cooking unit with a nameplate rating of 4 kW and a wall-mounted oven with a nameplate rating of 6 kW.A separate individual branch circuit will be run to the counter-mounted cooking unit and to the wall-mounted oven.What is the branch circuit load for each of the appliances in amperes?

Accepted Answer

The answer of A house will have a counter-mounted cooking...

Question 6

When cables or conductors are physically tied, wrapped, or taped together, they are considered to be ______________.

Accepted Answer

A)  bundled 
B)  messy 
C)  supported 
D)  secured

Question 7

According to Table 310.15(B)(16) in the NEC, the ampacity for a 3 AWG copper conductor using the 75 degree Celsius column is ____________.

Accepted Answer

A)  85 amperes 
B)  95 amperes 
C)  100 amperes 
D)  200 amperes

Question 8

Which of the following loads does not require a grounded circuit conductor?

Accepted Answer

A)  Two wires, 120 volt 
B)  Three wires, 120/240 volt 
C)  Two wires, 240 volt 
D)  None of the above

Question 9

A 1900 square foot residence has a general lighting load of ____________________ volt-amperes.

Accepted Answer

The answer of A 1900 square foot residence has a...

Question 10

A house will have an electric range that has a nameplate rating of 14 kW.What is the load used to calculate the branch circuit rating?

Accepted Answer

The answer of A house will have an electric range...

Question 11

When doing a standard service entrance calculation and applying the demand factor to the total load of the general lighting load, the small appliance circuits, and the laundry circuit, the first ___________ volt-amperes are computed at 100%.

Accepted Answer

A)  2000 
B)  2500 
C)  3000 
D)  4000

Question 12

According to the NEC, the unit load used to calculate the minimum number of general lighting branch circuits in a dwelling is __________ volt-amperes per square foot.

Accepted Answer

A)  2 
B)  3 
C)  4 
D)  5

Question 13

According to Section 310.15(B)(7)(1), for one-family dwelling service entrance ratings of 100 through 400 amperes the service conductors can have a rating of _____ percent of the service rating.

Accepted Answer

A)  73 
B)  83 
C)  100 
D)  125

Question 14

When doing a standard service entrance calculation, if a residence has four fixed appliances, a demand factor of __________% is applied to the total load of these appliances.

Accepted Answer

A)  50 
B)  75 
C)  80 
D)  100

Question 15

If cables are bundled together for more than 24 inches and the total number of current-carrying conductors exceeds __________, the ampacity of the conductors must be derated.

Accepted Answer

A)  two 
B)  three 
C)  four 
D)  five

Question 16

According to Section 310.15(B)(7) in the NEC, the minimum conductor size for a 200-ampere residential service entrance is _________ Cu or _________ Al.

Accepted Answer

A)  4 AWG; 2 AWG 
B)  3 AWG; 1 AWG 
C)  2 AWG; 1/0 AWG 
D)  2/0 AWG; 4/0 AWG

Question 17

Kitchen lighting outlets are permitted to be connected to any of the small-appliance branch circuits that provide power for the kitchen receptacles.

Accepted Answer

A) True 
 B)False

Question 18

Dividing the total computed load in volt-amperes by the residential service voltage of ____________________ volts will give the minimum ampacity that the service conductors must be rated for.

Accepted Answer

The answer of Dividing the total computed load in volt-amperes...

Question 19

All of the following types of branch circuits are found in residential wiring except:

Accepted Answer

A)  general lighting 
B)  laundry 
C)  large appliance 
D)  small appliance

Question 20

An area including a basin with one or more of the following: a toilet, a urinal, a tub, a shower, a bidet, or similar plumbing fixtures is called a bathroom according to the NEC.

Accepted Answer

A) True 
 B)False

Exam 6: Determining Branch Circuit, Feeder Circuit, and Service Entrance Requirements

According to Section 310.15(B) (7) in the NEC, the minimum conductor size for a 300-ampere residential service entrance is _ Cu or _ Al.

In residential wiring, which of the following house areas does not have its power supplied by a small appliance circuit?

Which of the following is not permitted to be connected to a small appliance branch circuit?

A circuit that consists of two or more ungrounded conductors that have a voltage between them, and a grounded conductor that has equal voltage between it and each ungrounded conductor of the circuit is called a multiwire circuit.

When cables or conductors are physically tied, wrapped, or taped together, they are considered to be ______________.

According to Table 310.15(B) (16) in the NEC, the ampacity for a 3 AWG copper conductor using the 75 degree Celsius column is ____________.

Which of the following loads does not require a grounded circuit conductor?

A 1900 square foot residence has a general lighting load of ____________________ volt-amperes.

A house will have an electric range that has a nameplate rating of 14 kW.What is the load used to calculate the branch circuit rating?

When doing a standard service entrance calculation and applying the demand factor to the total load of the general lighting load, the small appliance circuits, and the laundry circuit, the first ___________ volt-amperes are computed at 100%.

According to the NEC, the unit load used to calculate the minimum number of general lighting branch circuits in a dwelling is __________ volt-amperes per square foot.

According to Section 310.15(B) (7) (1) , for one-family dwelling service entrance ratings of 100 through 400 amperes the service conductors can have a rating of _____ percent of the service rating.

When doing a standard service entrance calculation, if a residence has four fixed appliances, a demand factor of __________% is applied to the total load of these appliances.

If cables are bundled together for more than 24 inches and the total number of current-carrying conductors exceeds __________, the ampacity of the conductors must be derated.

According to Section 310.15(B) (7) in the NEC, the minimum conductor size for a 200-ampere residential service entrance is _ Cu or _ Al.

Kitchen lighting outlets are permitted to be connected to any of the small-appliance branch circuits that provide power for the kitchen receptacles.

Dividing the total computed load in volt-amperes by the residential service voltage of ____________________ volts will give the minimum ampacity that the service conductors must be rated for.

All of the following types of branch circuits are found in residential wiring except:

An area including a basin with one or more of the following: a toilet, a urinal, a tub, a shower, a bidet, or similar plumbing fixtures is called a bathroom according to the NEC.

Exam 6: Determining Branch Circuit, Feeder Circuit, and Service Entrance Requirements

According to Section 310.15(B) (7) in the NEC, the minimum conductor size for a 300-ampere residential service entrance is _________ Cu or _________ Al.

In residential wiring, which of the following house areas does not have its power supplied by a small appliance circuit?

Which of the following is not permitted to be connected to a small appliance branch circuit?

A circuit that consists of two or more ungrounded conductors that have a voltage between them, and a grounded conductor that has equal voltage between it and each ungrounded conductor of the circuit is called a multiwire circuit.

When cables or conductors are physically tied, wrapped, or taped together, they are considered to be ______________.

According to Table 310.15(B) (16) in the NEC, the ampacity for a 3 AWG copper conductor using the 75 degree Celsius column is ____________.

Which of the following loads does not require a grounded circuit conductor?

A 1900 square foot residence has a general lighting load of ____________________ volt-amperes.

A house will have an electric range that has a nameplate rating of 14 kW.What is the load used to calculate the branch circuit rating?

When doing a standard service entrance calculation and applying the demand factor to the total load of the general lighting load, the small appliance circuits, and the laundry circuit, the first ___________ volt-amperes are computed at 100%.

According to the NEC, the unit load used to calculate the minimum number of general lighting branch circuits in a dwelling is __________ volt-amperes per square foot.

According to Section 310.15(B) (7) (1) , for one-family dwelling service entrance ratings of 100 through 400 amperes the service conductors can have a rating of _____ percent of the service rating.

When doing a standard service entrance calculation, if a residence has four fixed appliances, a demand factor of __________% is applied to the total load of these appliances.

If cables are bundled together for more than 24 inches and the total number of current-carrying conductors exceeds __________, the ampacity of the conductors must be derated.

According to Section 310.15(B) (7) in the NEC, the minimum conductor size for a 200-ampere residential service entrance is _________ Cu or _________ Al.

Kitchen lighting outlets are permitted to be connected to any of the small-appliance branch circuits that provide power for the kitchen receptacles.

Dividing the total computed load in volt-amperes by the residential service voltage of ____________________ volts will give the minimum ampacity that the service conductors must be rated for.

All of the following types of branch circuits are found in residential wiring except:

An area including a basin with one or more of the following: a toilet, a urinal, a tub, a shower, a bidet, or similar plumbing fixtures is called a bathroom according to the NEC.

According to Section 310.15(B) (7) in the NEC, the minimum conductor size for a 300-ampere residential service entrance is _ Cu or _ Al.

According to Section 310.15(B) (7) in the NEC, the minimum conductor size for a 200-ampere residential service entrance is _ Cu or _ Al.