Home Inspection Electrical Reviewed
Multiple Choices Questions and Answers
Latest 2025/2026 GRADED A+
What determines the amount of electricity (amperage) the wire can carry? - CORRECT
ANSWER-Size (diameter)
How many wires are there from the street into the house in a 240 volt system? -
CORRECT ANSWER-3 conductors
The size of the fuses or breakers at the main disconnect will always tell you the how
much electricity is available to the house? - CORRECT ANSWER-False
What is the min. size wire to provide the house with 60 Amp. service? - CORRECT
ANSWER-#6 Cu (copper)
How is the electrical system in most older homes grounded? - CORRECT ANSWER-to
metal Water supply piping
The ground wire should always be clamped upstream of the water meter? - CORRECT
ANSWER-True
, How are electrical systems grounded on rural properties where the oil supply piping
into the house is plastic? - CORRECT ANSWER-Both ground rods and metal well
casing is used
Breakers are safer than fuses, anyhow with fuses should be upgraded to Breakers. True
or false - CORRECT ANSWER-False fuses are just as safe as long as properly
maintained and installed
Fuses are more prone to improperly sized and overloaded? True or false - CORRECT
ANSWER-True
What is/ are the most common reasons for replacement of knob and tube wiring? -
CORRECT ANSWER-Breakdown of cloth covering insulation, buried in thermal
insulation, and homeowner splices and repairs are all common reasons for replacement
Name an important Improvement between knob and tube wiring and modern cable. -
CORRECT ANSWER-The use of grounding
Where are GFCI required in newer homes? - CORRECT ANSWER-Ground-fault circuit
indicators are required in new homes in kitchen's, bathrooms, unfinished basements,
Outdoors, and garages.
In most cases, three distribution wires connected to one fuse or breaker is acceptable?
True or false - CORRECT ANSWER-False
What is the most common electrical flaw found residential? - CORRECT ANSWER-
Over fusing
A non grounded receptacle within 6 foot of water should be replaced with? - CORRECT
ANSWER-GFCI , GFCI Upstream from receptacle , single pole GFCI breaker
Multiple Choices Questions and Answers
Latest 2025/2026 GRADED A+
What determines the amount of electricity (amperage) the wire can carry? - CORRECT
ANSWER-Size (diameter)
How many wires are there from the street into the house in a 240 volt system? -
CORRECT ANSWER-3 conductors
The size of the fuses or breakers at the main disconnect will always tell you the how
much electricity is available to the house? - CORRECT ANSWER-False
What is the min. size wire to provide the house with 60 Amp. service? - CORRECT
ANSWER-#6 Cu (copper)
How is the electrical system in most older homes grounded? - CORRECT ANSWER-to
metal Water supply piping
The ground wire should always be clamped upstream of the water meter? - CORRECT
ANSWER-True
, How are electrical systems grounded on rural properties where the oil supply piping
into the house is plastic? - CORRECT ANSWER-Both ground rods and metal well
casing is used
Breakers are safer than fuses, anyhow with fuses should be upgraded to Breakers. True
or false - CORRECT ANSWER-False fuses are just as safe as long as properly
maintained and installed
Fuses are more prone to improperly sized and overloaded? True or false - CORRECT
ANSWER-True
What is/ are the most common reasons for replacement of knob and tube wiring? -
CORRECT ANSWER-Breakdown of cloth covering insulation, buried in thermal
insulation, and homeowner splices and repairs are all common reasons for replacement
Name an important Improvement between knob and tube wiring and modern cable. -
CORRECT ANSWER-The use of grounding
Where are GFCI required in newer homes? - CORRECT ANSWER-Ground-fault circuit
indicators are required in new homes in kitchen's, bathrooms, unfinished basements,
Outdoors, and garages.
In most cases, three distribution wires connected to one fuse or breaker is acceptable?
True or false - CORRECT ANSWER-False
What is the most common electrical flaw found residential? - CORRECT ANSWER-
Over fusing
A non grounded receptacle within 6 foot of water should be replaced with? - CORRECT
ANSWER-GFCI , GFCI Upstream from receptacle , single pole GFCI breaker
