EV LESSON 4 QUESTIONS WITH CORRECT ANSWERS

EV LESSON 4 QUESTIONS WITH CORRECT
ANSWERS 2026-2027

What is the minimum branch circuit size for a Level II EVSE with a 32-
ampere current rating?

Select one:

a.32 A

b.35 A

c.40 A

d.55 A - CORRECT ANSWER-c.40 A



32 A × 1.25 = 40 A minimum OCPD



What is the minimum size XHHW-
2 copper conductor permitted to supply a Level II EVSE that has a 30-
ampere current rating, assuming 75° terminations?

Select one:

a.12 AWG

b.10 AWG

c.8 AWG

d.6 AWG - CORRECT ANSWER-c.8 AWG



30 A × 1.25 = 37.5 A = 8 AWG



When calculating the voltage drop on a conductor of a given length, the following values m
ust be considered: conductor material, conductor length, and conductor operating temperat
ure.

Select one:

, True

False - CORRECT ANSWER-True



Calculate the voltage drop on a single-
phase circuit with 32 amperes of load, a distance of 320 feet from the load to the panelbo
ard, and served by 8 AWG copper THHN conductors.

Select one:

a.13 V

b.14 V

c.15 V

d.16 V - CORRECT ANSWER-d.16 V



2KIL / A = VD(2) × 12.9 × 32A × 320' / 16,510 cmil = 16 V



Calculate the following correct copper conductor size so that the branch circuit has a maxim
um voltage drop of 2%. The load on the circuit is 32 amperes, the distance from the load t
o the panelboard is 400 feet, and the circuit is 208 volts, single-phase.

a.3 AWG

b.1 AWG

c.1/0 AWG

d.250 kcmil - CORRECT ANSWER-b.1 AWG



2% × 208 V = 4.16 V



2 KIL / VD = A



2 × 12.9 × 32 A × 400' / 4.16 V =