EVITP FINAL EXAM PREPARATION
QUESTIONS AND ANSWERS
1. According to NEC 625.41, how must the overcurrent protection device (OCPD) for an
Electric Vehicle Supply Equipment (EVSE) circuit be sized?
A. At 100% of the maximum load
B. At 80% of the maximum load
C. At 150% of the maximum load
D. At 125% of the maximum load
Answer: D
Conceptual Explanation: NEC 625.41 specifies that the overcurrent protection for EVSE
shall be sized at not less than 125% of the maximum load, as EVSE is considered a
continuous load.
2. Which NEC Article primarily covers the wiring and equipment for Electric Vehicle Power
Transfer Systems?
A. Article 680
B. Article 250
C. Article 430
,D. Article 625
Answer: D
Conceptual Explanation: Article 625 of the National Electrical Code (NEC) covers the
electrical conductors and equipment external to an electric vehicle that connect the vehicle
to a supply of electricity.
3. For an EVSE rated at 80 Amperes, what is the minimum required rating for the
disconnecting means according to NEC 625.43?
A. 80 Amperes
B. 60 Amperes
C. 100 Amperes
D. 125 Amperes
Answer: A
Conceptual Explanation: NEC 625.43 requires a disconnecting means for EVSE rated
more than 60 amperes or more than 150 volts to ground. The disconnect itself must be
rated for the load it serves.
4. What is the maximum allowed length for an EVSE output cable according to NEC 625.17(C),
unless equipped with a cable management system?
A. 15 feet
B. 20 feet
, C. 50 feet
D. 25 feet
Answer: D
Conceptual Explanation: NEC 625.17(C) limits the length of the output cable to 25 feet
(7.5 meters) unless the equipment is provided with a cable management system.
5. Under NEC 625.50, what is the minimum mounting height for the coupling means of an
indoor EVSE?
A. 12 inches
B. 18 inches
C. 24 inches
D. 36 inches
Answer: B
Conceptual Explanation: For indoor installations, the coupling means must be stored or
located at a height of not less than 18 inches above the floor level.
6. Which pilot signal state in the SAE J1772 standard indicates that the vehicle is connected
and ready to accept energy?
A. State A
B. State B
C. State F
QUESTIONS AND ANSWERS
1. According to NEC 625.41, how must the overcurrent protection device (OCPD) for an
Electric Vehicle Supply Equipment (EVSE) circuit be sized?
A. At 100% of the maximum load
B. At 80% of the maximum load
C. At 150% of the maximum load
D. At 125% of the maximum load
Answer: D
Conceptual Explanation: NEC 625.41 specifies that the overcurrent protection for EVSE
shall be sized at not less than 125% of the maximum load, as EVSE is considered a
continuous load.
2. Which NEC Article primarily covers the wiring and equipment for Electric Vehicle Power
Transfer Systems?
A. Article 680
B. Article 250
C. Article 430
,D. Article 625
Answer: D
Conceptual Explanation: Article 625 of the National Electrical Code (NEC) covers the
electrical conductors and equipment external to an electric vehicle that connect the vehicle
to a supply of electricity.
3. For an EVSE rated at 80 Amperes, what is the minimum required rating for the
disconnecting means according to NEC 625.43?
A. 80 Amperes
B. 60 Amperes
C. 100 Amperes
D. 125 Amperes
Answer: A
Conceptual Explanation: NEC 625.43 requires a disconnecting means for EVSE rated
more than 60 amperes or more than 150 volts to ground. The disconnect itself must be
rated for the load it serves.
4. What is the maximum allowed length for an EVSE output cable according to NEC 625.17(C),
unless equipped with a cable management system?
A. 15 feet
B. 20 feet
, C. 50 feet
D. 25 feet
Answer: D
Conceptual Explanation: NEC 625.17(C) limits the length of the output cable to 25 feet
(7.5 meters) unless the equipment is provided with a cable management system.
5. Under NEC 625.50, what is the minimum mounting height for the coupling means of an
indoor EVSE?
A. 12 inches
B. 18 inches
C. 24 inches
D. 36 inches
Answer: B
Conceptual Explanation: For indoor installations, the coupling means must be stored or
located at a height of not less than 18 inches above the floor level.
6. Which pilot signal state in the SAE J1772 standard indicates that the vehicle is connected
and ready to accept energy?
A. State A
B. State B
C. State F
