NCCER ELECTRICAL MODULE 2 LEVEL 2 EXAM
SCRIPT 2026 QUESTIONS WITH ANSWERS
GRADED A+
◉ A sustained overload is. Answer: 3 hours or more
◉ 2 types of current ratings on circuit breakers. Answer: Continuous
current rating - (most common)
Fault current interrupting capacity
◉ Circuit breakers are classified in frame sizes based to the. Answer:
Largest ampere rating of its range
100A
225A
400A
1,000A
2,000A
◉ On an overload, the circuit breaker. Answer: opens itself, or trips
◉ Circuit breaker voltage ratings indicate. Answer: the maximum
electrical system voltage on which they can be applied.
, ◉ Circuit breakers can be rated for. Answer: either alternating
current (AC) or direct current (DC) or both
◉ The amperage interrupting capacity (AIC) of a circuit breaker is
the. Answer: maximum short circuit current at which the breaker
will safely interrupt the circuit
◉ Selecting overcurrent protective devices with proper interrupting
capacity is. Answer: extremely important in all electrical systems
◉ The intent of the NEC is that the design of a system. Answer: must
be such that short circuit currents cannot exceed the short circuit
current ratings of the components selected as part of the system
◉ Who tests the breaker interrupting capacity. Answer: NEMA and
UL
◉ Emphasis is now placed on which test. Answer: UL
◉ Does NEMA list devices?. Answer: No, UL does
SCRIPT 2026 QUESTIONS WITH ANSWERS
GRADED A+
◉ A sustained overload is. Answer: 3 hours or more
◉ 2 types of current ratings on circuit breakers. Answer: Continuous
current rating - (most common)
Fault current interrupting capacity
◉ Circuit breakers are classified in frame sizes based to the. Answer:
Largest ampere rating of its range
100A
225A
400A
1,000A
2,000A
◉ On an overload, the circuit breaker. Answer: opens itself, or trips
◉ Circuit breaker voltage ratings indicate. Answer: the maximum
electrical system voltage on which they can be applied.
, ◉ Circuit breakers can be rated for. Answer: either alternating
current (AC) or direct current (DC) or both
◉ The amperage interrupting capacity (AIC) of a circuit breaker is
the. Answer: maximum short circuit current at which the breaker
will safely interrupt the circuit
◉ Selecting overcurrent protective devices with proper interrupting
capacity is. Answer: extremely important in all electrical systems
◉ The intent of the NEC is that the design of a system. Answer: must
be such that short circuit currents cannot exceed the short circuit
current ratings of the components selected as part of the system
◉ Who tests the breaker interrupting capacity. Answer: NEMA and
UL
◉ Emphasis is now placed on which test. Answer: UL
◉ Does NEMA list devices?. Answer: No, UL does
