TEST PAPER FULL QUESTIONS AND
COMPLETE ANSWERS
⩥ Refer to the 2020 edition of the NEC®. Continuous loads are
calculated at what percentage of the maximum current rating of
the overcurrent device?
Answer: 80%
⩥ Refer to the 2020 edition of the NEC®. What is the total load
required by the NEC® for four appliance branch circuits plus a
laundry branch circuit?
Answer: 7500VA
⩥ Refer to the 2020 edition of the NEC®. The load center
length for a branch circuit with noncontinuous loads of 125A at
80' from the source, 75A at 110' from the source, and 50A at
100' from the source is _____.
Answer: 93'
⩥ Refer to the 2020 edition of the NEC®. What is the feeder
load (in VA) for four small appliance branch circuits?
,Answer: 6000VA
⩥ Refer to the 2020 edition of the NEC®. What is the lighting
load on a 120V circuit for six 100W incandescent lights and four
fluorescent fixtures with a ballast rating of 1.5A, all operating
continuously for 8 hours per day?
Answer: 13.75A
⩥ Refer to the 2020 edition of the NEC®. What is the required
branch circuit ampacity of a water heater with a nameplate
rating of 7,200VA at 240V?
Answer: 37.5A
⩥ Refer to the 2020 edition of the NEC®. What is the
MINIMUM ampacity for the branch circuit conductors for a
single-phase motor rated at 2hp, 230V?
Answer: 15A
⩥ Refer to the 2020 edition of the NEC®. The MAXIMUM size
dual-element fuse for a 40hp, 3Ø, 460V motor with a Design
Letter D is _____.
Answer: 100A
, ⩥ Refer to the 2020 edition of the NEC®. A sign load CANNOT
exceed _____.
Answer: 80% of the branch circuit rating
⩥ Refer to the 2020 edition of the NEC®. When space heating
equipment uses electric resistance heating elements, protection
for the resistance elements must NOT exceed _____.
Answer: 60A
⩥ Refer to the 2020 edition of the NEC®. What is the motor
full-load current for an induction type motor with a nameplate
rating of 30hp, 460V, 3Ø?
Answer: 40A
⩥ Refer to the 2020 edition of the NEC®. What is the feeder
load (in VA) for the minimum number of small appliance branch
circuits required in a residential kitchen?
Answer: 3000VA