PROFESSIONAL HOME INSPECTOR STUDY GUIDE
2025|ACTUAL EXAM WITH 100% VERIFIED
QUESTIONS AND CORRECT SOLUTIONS
Example of electricity measurements - CORRECT_ANSW_dryer equals 240 volts
rated at 270 watts pulls 30 amps, dryer must be protected by a 30 amp circuit
breaker
NO.10 Copper - CORRECT_ANSW_rated for 30 amps
15 amp - CORRECT_ANSW_copper 14, aluminum 12,
20 amp - CORRECT_ANSW_copper 12, aluminum 10
30 amp - CORRECT_ANSW_copper 10, aluminum 8
,40 amp - CORRECT_ANSW_copper 8 aluminum 6
60 amp - CORRECT_ANSW_copper 6 aluminum 4
100 amp - CORRECT_ANSW_copper 2 aluminum 1
150 amp - CORRECT_ANSW_copper 1 aluminum2/0
250 amp - CORRECT_ANSW_2/0 4/0
copper conductor wire - CORRECT_ANSW_-2 per amp size (starting @ 14)
aluminum conductor - CORRECT_ANSW_-2 per amp ( starting at 12)
,most residential services volts - CORRECT_ANSW_120/240 volt
a service conductor with 4 connected conductors - CORRECT_ANSW_3 phase
supply
service drops around a swimming pool - CORRECT_ANSW_22.5 feet above and 10
feet away
service drop for windows doors ext - CORRECT_ANSW_minium 3 feet
service drop for roof - CORRECT_ANSW_8ft above for 3 feet in all directions
service mast - CORRECT_ANSW_extends more than 5 feet should be seperetly
supported, within 12 inch of mast head and 3 of the meter
rigid service mast should be secured - CORRECT_ANSW_5 every to 6 feet
, UF (underground feeder - CORRECT_ANSW_rated for use under ground
ufer - CORRECT_ANSW_main grounding conductor
underground service entrance - CORRECT_ANSW_service lateral
square meter base - CORRECT_ANSW_indicates 100 amp supply
grounding electrodes - CORRECT_ANSW_driven rods, metal water pipes, well
casings, ufer grounds, ground plates, steel framing, ground rings
bonding - CORRECT_ANSW_insures electrical continuity of the fault current path,
ability to safely conduct any fault current and aid operation of overcurrent
protection device
2025|ACTUAL EXAM WITH 100% VERIFIED
QUESTIONS AND CORRECT SOLUTIONS
Example of electricity measurements - CORRECT_ANSW_dryer equals 240 volts
rated at 270 watts pulls 30 amps, dryer must be protected by a 30 amp circuit
breaker
NO.10 Copper - CORRECT_ANSW_rated for 30 amps
15 amp - CORRECT_ANSW_copper 14, aluminum 12,
20 amp - CORRECT_ANSW_copper 12, aluminum 10
30 amp - CORRECT_ANSW_copper 10, aluminum 8
,40 amp - CORRECT_ANSW_copper 8 aluminum 6
60 amp - CORRECT_ANSW_copper 6 aluminum 4
100 amp - CORRECT_ANSW_copper 2 aluminum 1
150 amp - CORRECT_ANSW_copper 1 aluminum2/0
250 amp - CORRECT_ANSW_2/0 4/0
copper conductor wire - CORRECT_ANSW_-2 per amp size (starting @ 14)
aluminum conductor - CORRECT_ANSW_-2 per amp ( starting at 12)
,most residential services volts - CORRECT_ANSW_120/240 volt
a service conductor with 4 connected conductors - CORRECT_ANSW_3 phase
supply
service drops around a swimming pool - CORRECT_ANSW_22.5 feet above and 10
feet away
service drop for windows doors ext - CORRECT_ANSW_minium 3 feet
service drop for roof - CORRECT_ANSW_8ft above for 3 feet in all directions
service mast - CORRECT_ANSW_extends more than 5 feet should be seperetly
supported, within 12 inch of mast head and 3 of the meter
rigid service mast should be secured - CORRECT_ANSW_5 every to 6 feet
, UF (underground feeder - CORRECT_ANSW_rated for use under ground
ufer - CORRECT_ANSW_main grounding conductor
underground service entrance - CORRECT_ANSW_service lateral
square meter base - CORRECT_ANSW_indicates 100 amp supply
grounding electrodes - CORRECT_ANSW_driven rods, metal water pipes, well
casings, ufer grounds, ground plates, steel framing, ground rings
bonding - CORRECT_ANSW_insures electrical continuity of the fault current path,
ability to safely conduct any fault current and aid operation of overcurrent
protection device
