CEI Branch Circuit & Feeder Inspection 3

Question 1

Per the NEC informational note to 210.19(A)(1), the maximum recommended voltage drop for a branch circuit alone is:

Accepted Answer

3%

Answer

2%

Answer

5%

Answer

10%

Question 2

Per NEC 210.4(B), a multi-wire branch circuit must have a means to simultaneously disconnect all ungrounded conductors at:

Accepted Answer

The panelboard where the branch circuit originates

Answer

Each individual outlet on the circuit

Answer

The service entrance equipment only

Answer

The first junction box on the circuit

Question 3

GFCI protection for all 125-volt, 15- and 20-ampere receptacles in bathrooms of dwelling units is required by NEC:

Accepted Answer

210.8(A)(1)

Answer

210.11(C)(1)

Answer

210.12(A)

Answer

215.2(A)(1)

Question 4

What is the minimum individual branch circuit rating required for a household electric clothes dryer per NEC 220.54?

Accepted Answer

30-ampere, 240-volt

Answer

20-ampere, 240-volt

Answer

40-ampere, 240-volt

Answer

50-ampere, 240-volt

Question 5

The 'high leg' conductor in a 3-phase, 4-wire delta system, which has a higher voltage to ground than the other conductors, must be identified by which color per NEC 110.15?

Accepted Answer

Orange

Answer

White

Answer

Gray

Answer

Red

Question 6

Per NEC 220.14(I), each general-purpose duplex receptacle outlet on a branch circuit must be calculated at a minimum of:

Accepted Answer

180 volt-amperes

Answer

90 volt-amperes

Answer

120 volt-amperes

Answer

240 volt-amperes

Question 7

What is the minimum conductor size (AWG copper) required for a 30-ampere branch circuit per NEC Table 310.16?

Accepted Answer

10 AWG

Answer

12 AWG

Answer

8 AWG

Answer

6 AWG