EXAM QUESTIONS WITH DETAILED VERIFIED ANSWERS
(100% CORRECT ANSWERS) /ALREADY GRADED A+
Level 2 EVSEs with a rating of 6.6 kilowatts can supply ? of charge current when
operating at 220 VAC.
Select one:
a.20 A
b.30 A
c.40 A
d.50 A
b.30 A
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
c.40 A
32 A × 1.25 = 40 A minimum OCPD
Two Level II EVSE circuits are installed in the same PVC conduit. Each EVSE is
served by a 40-ampere circuit at 240 volts with an EGC run along with the
circuits. What size copper EGC is required for this installation?
Select one:
a.10 AWG
b.8 AWG
,c.6 AWG
d.4 AWG
a.10 AWG
Note: T250.122 - 40 A Circuit = 10 AWG CU equipment ground
A 32,000 square foot office building has 120 20-ampere, 120-volt duplex
receptacle outlets. What is the branch circuit receptacle load?
Select one:
a.9,600 VA
b.21,600 VA
c.28,000 VA
d.32,000 VA
d.32,000 VA
Note: 220.14(K) - use largest of either 1 VA per square foot or 180 VA per outlet.
180 VA × 120 = 21,600 VA32,000 ft2 × 1
VA = 32,000 VA
An existing 400-ampere, 120/208-volt, 3-phase, 4-wire service has 30 kilovolt-
amperes of non-continuous load and 58 kilovolt-amperes of continuous load.
How much more continuous load can be added to the service? (Note: Use 1.732
for the square root of 3.)
Select one:
a.33,281.92 VA
b.41,436 VA
c.102.5 kVA
d.143.93 kVA
a.33,281.92 VA
Note: 30 kVA + (58 kVA × 1.25) = 102.5 kVA
400 A × 208 V × 1.732 = 144,102.4 VA
, Remaining VA available prior to continuous load correction = 41,602.4 VA
41,602 VA × 0.8 = 33,281.92 VA
A Level II EVSE with a rating of 32 amperes at 208 volts is installed. What is the
minimum size copper equipment grounding conductor required to serve the
installation?
Select one:
a.10 AWG
b.8 AWG
c.6 AWG
d.4 AWG
a.10 AWG
Note: Section 250.122 - the EVSE will be served by a 40A OCPD; therefore, the
minimum size equipment ground will be 10 AWG.
Additional EVSEs are to be added to an existing 120/208-volt, 3-phase, 4-wire,
600-ampere service with 220 amperes of non-continuous load and 172 amperes
of continuous load. The EVSEs each draw 32 amperes. How many new EVSEs can
be added to the service? (Note: Use 1.732 for the square root of 3.)
Select one:
a.2
b.3
c.6
d.9
c.6
220 A + (172 A × 1.25) = 435 A
600 A - 435 A = 165 A
165 A × 0.8 = 132 A left (due to EVSEs being continuous loads)