Home Inspection Electrical Exam Questions and Answers |New Update with
100% Verified Answers
What determines the amount of electricity (amperage) the wire can carry? Size (diameter)
How many wires are there from the street into the house in a 240 volt system? 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? False
What is the min. size wire to provide the house with 60 Amp. service? #6 Cu (copper)
How is the electrical system in most older homes grounded? to metal Water supply piping
The ground wire should always be clamped upstream of the water meter? True
How are electrical systems grounded on rural properties where the oil supply piping into the
house is plastic? 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
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 True
What is/ are the most common reasons for replacement of knob and tube wiring?
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. The
use of grounding
Where are GFCI required in newer homes? 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 False
What is the most common electrical flaw found residential? Over fusing
A non grounded receptacle within 6 foot of water should be replaced with? GFCI , GFCI
Upstream from receptacle , single pole GFCI breaker
The maximum number of disconnects allowed to shut off main panel are? 6
What is the correct size copper wire for a 20 amp breaker? 12 copper wire
Non-metallic sheathed cables in an attic on top of joist must be? Both protected within 6
feet of attic ladder , Scuttle hole and must be fastened every 4 and 1/2 feet
The following closet lighting it is ok Surface mounted or recessed incandescent fixtures with
completely enclosed lamps, recessed fluorescent fixtures , mounted incandescent fixtures can
be mounted on ceiling with 12 inch clearance
Sub panel requirements? Neutral and ground must be separated , must be bonded , must be
isolated
Grounding rod must be driven to what depth for proper protection? 8 feet
100% Verified Answers
What determines the amount of electricity (amperage) the wire can carry? Size (diameter)
How many wires are there from the street into the house in a 240 volt system? 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? False
What is the min. size wire to provide the house with 60 Amp. service? #6 Cu (copper)
How is the electrical system in most older homes grounded? to metal Water supply piping
The ground wire should always be clamped upstream of the water meter? True
How are electrical systems grounded on rural properties where the oil supply piping into the
house is plastic? 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
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 True
What is/ are the most common reasons for replacement of knob and tube wiring?
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. The
use of grounding
Where are GFCI required in newer homes? 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 False
What is the most common electrical flaw found residential? Over fusing
A non grounded receptacle within 6 foot of water should be replaced with? GFCI , GFCI
Upstream from receptacle , single pole GFCI breaker
The maximum number of disconnects allowed to shut off main panel are? 6
What is the correct size copper wire for a 20 amp breaker? 12 copper wire
Non-metallic sheathed cables in an attic on top of joist must be? Both protected within 6
feet of attic ladder , Scuttle hole and must be fastened every 4 and 1/2 feet
The following closet lighting it is ok Surface mounted or recessed incandescent fixtures with
completely enclosed lamps, recessed fluorescent fixtures , mounted incandescent fixtures can
be mounted on ceiling with 12 inch clearance
Sub panel requirements? Neutral and ground must be separated , must be bonded , must be
isolated
Grounding rod must be driven to what depth for proper protection? 8 feet
