NCCER STATE EXAM QUESTIONS AND
ANSWERS 2024/2025
Branch circuit conductors must have an ampacity rating equal to, or greater than -
CORRECT ANSWER-The noncontinous load plus 125% of the continous load
The reciprocal of 125% is equivalent to - CORRECT ANSWER-80% of the rating at the
overcurrent protective device
The square root of 3 - CORRECT ANSWER-1.732
A voltage drop exist that exceeds the recommended 3% for branch circuits or 5% for the
combination of feeder and branch circuits is caused - CORRECT ANSWER-When the
distance of branch circuit conductors become excessive
Nec table 310.16 - CORRECT ANSWER-List allowable ampacities for insulated
conductors rated 0 - 2000v
What is the maximum continuous load that may be connected to a 20A, 120v fuse? -
CORRECT ANSWER-16 amp (80%)
Per nec section 220.14(I) - CORRECT ANSWER-Each receptacle is assigned a value
of 180va. The capacity of a 15a 120 volt circuit is 1800va.
Nec section 220.52(a) - CORRECT ANSWER-Requires that the feeder load be
computed at 1500va for each required small appliance branch circuit.
Nec sections 210.11(c)(2) and 210.52(f) require - CORRECT ANSWER-The installation
of at least one receptacle to supply laundry equipment (1,500va for each laundry circuit)
Per NEC section 422.10(a) - CORRECT ANSWER-120 gallons or less shall have the
branch circuit rated at no less than 125% of the name plate rating of the water heater
because it's considered a continuous load
Per NEC section 424.22(b) - CORRECT ANSWER-When space heating equipment
utilizes electric resistance heating elements, protection for the resistance elements shall
not exceed 60A
Per Nec section 440.22(a) - CORRECT ANSWER-Overcurrent protection devices shall
not exceed 175% of the compressor full load current or the branch circuit selection
current.
ANSWERS 2024/2025
Branch circuit conductors must have an ampacity rating equal to, or greater than -
CORRECT ANSWER-The noncontinous load plus 125% of the continous load
The reciprocal of 125% is equivalent to - CORRECT ANSWER-80% of the rating at the
overcurrent protective device
The square root of 3 - CORRECT ANSWER-1.732
A voltage drop exist that exceeds the recommended 3% for branch circuits or 5% for the
combination of feeder and branch circuits is caused - CORRECT ANSWER-When the
distance of branch circuit conductors become excessive
Nec table 310.16 - CORRECT ANSWER-List allowable ampacities for insulated
conductors rated 0 - 2000v
What is the maximum continuous load that may be connected to a 20A, 120v fuse? -
CORRECT ANSWER-16 amp (80%)
Per nec section 220.14(I) - CORRECT ANSWER-Each receptacle is assigned a value
of 180va. The capacity of a 15a 120 volt circuit is 1800va.
Nec section 220.52(a) - CORRECT ANSWER-Requires that the feeder load be
computed at 1500va for each required small appliance branch circuit.
Nec sections 210.11(c)(2) and 210.52(f) require - CORRECT ANSWER-The installation
of at least one receptacle to supply laundry equipment (1,500va for each laundry circuit)
Per NEC section 422.10(a) - CORRECT ANSWER-120 gallons or less shall have the
branch circuit rated at no less than 125% of the name plate rating of the water heater
because it's considered a continuous load
Per NEC section 424.22(b) - CORRECT ANSWER-When space heating equipment
utilizes electric resistance heating elements, protection for the resistance elements shall
not exceed 60A
Per Nec section 440.22(a) - CORRECT ANSWER-Overcurrent protection devices shall
not exceed 175% of the compressor full load current or the branch circuit selection
current.
