NCCER ELECTRICAL MODULE 2 LEVEL 2
EXAM 2026 PRACTICE SET WITH 100%
CORRECT SOLUTIONS
⫸ Fibrillation. Answer: very rapid irregular contractions of the muscle
fibers of the heart that result in the heartbeat and pulse going out of
rhythm with each other
⫸ Grounded tool. Answer: An electrical tool with a three-prong plug at
the end of its power cord or some other means to ensure that stray
current travels to ground without passing through the body of the user.
The ground plug is bonded to the conductive frame of the tool.
⫸ Ground Fault Circuit Interrupter (GFCI). Answer: A protective device
that functions to de-energize a circuit or portion thereof within an
established period of time when a current to ground exceeds some
predetermined value. This value is less than that required to operate the
over current protective device of t he supply circuit.
⫸ Polychlorinated biphenyls (PCBs). Answer: Toxic chemicals that may
be contained in liquids used to cool certain types of large transformers
and capacitors.
⫸
EXAM 2026 PRACTICE SET WITH 100%
CORRECT SOLUTIONS
⫸ Fibrillation. Answer: very rapid irregular contractions of the muscle
fibers of the heart that result in the heartbeat and pulse going out of
rhythm with each other
⫸ Grounded tool. Answer: An electrical tool with a three-prong plug at
the end of its power cord or some other means to ensure that stray
current travels to ground without passing through the body of the user.
The ground plug is bonded to the conductive frame of the tool.
⫸ Ground Fault Circuit Interrupter (GFCI). Answer: A protective device
that functions to de-energize a circuit or portion thereof within an
established period of time when a current to ground exceeds some
predetermined value. This value is less than that required to operate the
over current protective device of t he supply circuit.
⫸ Polychlorinated biphenyls (PCBs). Answer: Toxic chemicals that may
be contained in liquids used to cool certain types of large transformers
and capacitors.
⫸
