Electrical Level 2 Module 10 Exam Questions
And Answers
Circuit breaker classification ranges -
correct answer ✅15A - 100A
125A - 225A
250A - 400A
500A - 1,000A
1,200A - 2,000A
A sustained overload is -
correct answer ✅3 hours or more
2 types of current ratings on circuit breakers -
correct answer ✅Continuous current rating - (most common)
Fault current interrupting capacity
Circuit breakers are classified in frame sizes based to the -
correct answer ✅Largest ampere rating of its range
100A
225A
400A
1,000A
, Electrical Level 2 Module 10 Exam Questions
And Answers
2,000A
On an overload, the circuit breaker -
correct answer ✅opens itself, or trips
Circuit breaker voltage ratings indicate -
correct answer ✅the maximum electrical system voltage on which
they can be applied.
Circuit breakers can be rated for -
correct answer ✅either alternating current (AC) or direct current
(DC) or both
The amperage interrupting capacity (AIC) of a circuit breaker is the -
correct answer ✅maximum short circuit current at which the
breaker will safely interrupt the circuit
Selecting overcurrent protective devices with proper interrupting
capacity is -
correct answer ✅extremely important in all electrical systems
And Answers
Circuit breaker classification ranges -
correct answer ✅15A - 100A
125A - 225A
250A - 400A
500A - 1,000A
1,200A - 2,000A
A sustained overload is -
correct answer ✅3 hours or more
2 types of current ratings on circuit breakers -
correct answer ✅Continuous current rating - (most common)
Fault current interrupting capacity
Circuit breakers are classified in frame sizes based to the -
correct answer ✅Largest ampere rating of its range
100A
225A
400A
1,000A
, Electrical Level 2 Module 10 Exam Questions
And Answers
2,000A
On an overload, the circuit breaker -
correct answer ✅opens itself, or trips
Circuit breaker voltage ratings indicate -
correct answer ✅the maximum electrical system voltage on which
they can be applied.
Circuit breakers can be rated for -
correct answer ✅either alternating current (AC) or direct current
(DC) or both
The amperage interrupting capacity (AIC) of a circuit breaker is the -
correct answer ✅maximum short circuit current at which the
breaker will safely interrupt the circuit
Selecting overcurrent protective devices with proper interrupting
capacity is -
correct answer ✅extremely important in all electrical systems
