Electrician's Licensing Exam 189
Questions with Correct Answers 2026
The smaller kitchen counter requiring a receptacle is _____ inches. - CORRECT ANSWER -A 12in.
counter requires a receptacle because it holds small appliances.
What new code is needed for protection in all habitable spaces? - CORRECT ANSWER -According
to new codes, ARC fault protection is needed many additional parts of the house.
A 12-foot hallway requires one receptacle to meet code. (True or False) - CORRECT ANSWER -
True, One is required, Two are suggested.
The main ground on a service is a(n) _____. - CORRECT ANSWER -Ground Rod
A bonding screw is what color? - CORRECT ANSWER -A bonding screw is green.
A subpanel requires a bonding screw? (True or False) - CORRECT ANSWER -False, A bonding
screw is unneeded in a subpanel.
Bonding is the establishment of ______ connection between metal parts. - CORRECT ANSWER -
Reliable
What is the proper procedure for bonding a motor conduit with metal flex? - CORRECT ANSWER
-A bonding jumper should be installed inside or outside raceway within 6ft. of attachment. (NEC
250.118)
Give guidelines for using sheet metal screws as bonding agents. - CORRECT ANSWER -
Electricians can use sheet metal screws for bonding when those screws are green and have
hexagonal heads (NEC 250.8), but it is generally considered unwise.
,When a service entrance wire is under at least 2 in. of concrete, a disconnect is required
between meter base and panel. (True or False) - CORRECT ANSWER -False, No disconnect is
required.
Above sidewalks accessible by pedestrians, a service drop not over 600V must be at least
_____ft. high. - CORRECT ANSWER -10ft.
What is the service drop distance, in feet, of a 200-amp service crossing residential property? -
CORRECT ANSWER -12ft.
The required clearance for a 400-amp service drop across a major roadway is? - CORRECT
ANSWER -18ft.
An unsheathed service conductor must be _____ft. from a window that opens. - CORRECT
ANSWER -3ft.
System and circuit grounding involves taking alternating current to ground? (True or False) -
CORRECT ANSWER -True
The process of equipment _____ exposes current-carrying parts to a grounding system. -
CORRECT ANSWER -Grounding
Small power tools are protected in what two ways? - CORRECT ANSWER -1.Insulated Housings.
2. Ground prong on plugs.
When bonding a plumbing system to the electrical system, it is not necessary to jump the water
meter as this connection is built into the meter. (True or False) - CORRECT ANSWER -False, run
, ground wire from panel to copper water pipe then jump the water meter using grounding
clamps.
Explain the proper way to ground a subpanel in the same building. - CORRECT ANSWER -To
ground a subpanel in the same building, run a four-wire system from main panel to subpanel.
Discuss the proper way to ground a subpanel in another building. - CORRECT ANSWER -To
ground a subpanel in the another building, run bare copper wire from subpanel to ground rod
inside or outside.
Something that is ______ is connected to ground or to a conductive body that extends the
grounding connection. - CORRECT ANSWER -Grounded
Describe a grounding conductor. - CORRECT ANSWER -A grounded conductor is a system or
circuit that is intentionally grounded.
Define the term grounding conductor. - CORRECT ANSWER -A grounding conductor is a
conductor or circuit of a wiring system to a grounding electrode (ground rod).
A(n) _____ is the fundamental particle of electricity. - CORRECT ANSWER -Electron
Voltage can be fatal to a person. (True or False) - CORRECT ANSWER -False, Current is fatal to
people not Voltage
What determines the severity of an electrical shock? - CORRECT ANSWER -Voltage level, amount
of protective clothing, and moisture on skin or outerwear all impact a ground connection.
Grounding reduces the voltage that might cause a fatal electrical shock by allowing excess
current to flow to the ground. (True or False) - CORRECT ANSWER -True
Questions with Correct Answers 2026
The smaller kitchen counter requiring a receptacle is _____ inches. - CORRECT ANSWER -A 12in.
counter requires a receptacle because it holds small appliances.
What new code is needed for protection in all habitable spaces? - CORRECT ANSWER -According
to new codes, ARC fault protection is needed many additional parts of the house.
A 12-foot hallway requires one receptacle to meet code. (True or False) - CORRECT ANSWER -
True, One is required, Two are suggested.
The main ground on a service is a(n) _____. - CORRECT ANSWER -Ground Rod
A bonding screw is what color? - CORRECT ANSWER -A bonding screw is green.
A subpanel requires a bonding screw? (True or False) - CORRECT ANSWER -False, A bonding
screw is unneeded in a subpanel.
Bonding is the establishment of ______ connection between metal parts. - CORRECT ANSWER -
Reliable
What is the proper procedure for bonding a motor conduit with metal flex? - CORRECT ANSWER
-A bonding jumper should be installed inside or outside raceway within 6ft. of attachment. (NEC
250.118)
Give guidelines for using sheet metal screws as bonding agents. - CORRECT ANSWER -
Electricians can use sheet metal screws for bonding when those screws are green and have
hexagonal heads (NEC 250.8), but it is generally considered unwise.
,When a service entrance wire is under at least 2 in. of concrete, a disconnect is required
between meter base and panel. (True or False) - CORRECT ANSWER -False, No disconnect is
required.
Above sidewalks accessible by pedestrians, a service drop not over 600V must be at least
_____ft. high. - CORRECT ANSWER -10ft.
What is the service drop distance, in feet, of a 200-amp service crossing residential property? -
CORRECT ANSWER -12ft.
The required clearance for a 400-amp service drop across a major roadway is? - CORRECT
ANSWER -18ft.
An unsheathed service conductor must be _____ft. from a window that opens. - CORRECT
ANSWER -3ft.
System and circuit grounding involves taking alternating current to ground? (True or False) -
CORRECT ANSWER -True
The process of equipment _____ exposes current-carrying parts to a grounding system. -
CORRECT ANSWER -Grounding
Small power tools are protected in what two ways? - CORRECT ANSWER -1.Insulated Housings.
2. Ground prong on plugs.
When bonding a plumbing system to the electrical system, it is not necessary to jump the water
meter as this connection is built into the meter. (True or False) - CORRECT ANSWER -False, run
, ground wire from panel to copper water pipe then jump the water meter using grounding
clamps.
Explain the proper way to ground a subpanel in the same building. - CORRECT ANSWER -To
ground a subpanel in the same building, run a four-wire system from main panel to subpanel.
Discuss the proper way to ground a subpanel in another building. - CORRECT ANSWER -To
ground a subpanel in the another building, run bare copper wire from subpanel to ground rod
inside or outside.
Something that is ______ is connected to ground or to a conductive body that extends the
grounding connection. - CORRECT ANSWER -Grounded
Describe a grounding conductor. - CORRECT ANSWER -A grounded conductor is a system or
circuit that is intentionally grounded.
Define the term grounding conductor. - CORRECT ANSWER -A grounding conductor is a
conductor or circuit of a wiring system to a grounding electrode (ground rod).
A(n) _____ is the fundamental particle of electricity. - CORRECT ANSWER -Electron
Voltage can be fatal to a person. (True or False) - CORRECT ANSWER -False, Current is fatal to
people not Voltage
What determines the severity of an electrical shock? - CORRECT ANSWER -Voltage level, amount
of protective clothing, and moisture on skin or outerwear all impact a ground connection.
Grounding reduces the voltage that might cause a fatal electrical shock by allowing excess
current to flow to the ground. (True or False) - CORRECT ANSWER -True
