INTERNACHI FLORIDA STATE EXAM
PREP QUESTIONS AND ANSWERS
The typical electrical service for homes in North America is a_____? - Correct Answers
-120\240 Volt
The 240 Volt circuit is used for? - Correct Answers -Appliances
The return conductor (a.k.a. the neutral) is at ___ volts because it is grounded to the
electric panel - Correct Answers -Zero
Most 120 Volt circuits are wired to deliver ___ or ___ Amps of current - Correct Answers
-15, 20
Most ___ Buildings are supplied with 120\240 Volt services. This means that the cable
assembly is made up of ___ ungrounded conductors each supplying 120 V with one
ground - Correct Answers -Residential, two
The point of attachment of the service drop conductors to a building or structure must
have a clearance of at least ___ ft - Correct Answers -10
Vertical clearance for overhead conductors they are over public streets - Correct
Answers -18 feet
Any appliance used for heating water or storing hot water must be protected by a
_______ valve. - Correct Answers -relief
Standpipes for clothes washers should extend at least ____ inches and no more than
____ inches above the trap weir. - Correct Answers -18... 42
An open vent pipe that passes through a roof should extend at least _____ inches
above the roof. - Correct Answers -6
If a roof is used for a purpose other than weather protection, the vent extensions should
extend above the roof by at least ____ feet. - Correct Answers -7
A _______ prevents sewer gases from emanating from the drainage system. - Correct
Answers -trap
,The only type of fixture trap permitted is a(n) ___-trap. - Correct Answers -P
T/F: If a panelboard is wider than 30 inches, the workspace in front of it must extend its
full width. - Correct Answers -true
T/F: The dedicated space above an electrical panel should be kept clear of components
not related to the electrical equipment. - Correct Answers -true
Vertical clearance for overhead conductors that are over commercial parking areas -
Correct Answers -18 feet
Vertical clearance for overhead conductors that are over swimming pools? - Correct
Answers -22 feet and 6 inches, 10 feet horizontal
Vertical clearance for overhead conductors that are over residential properties? -
Correct Answers -12 feet
Vertical clearance for overhead conductors that are from sides of doors? - Correct
Answers -3 feet from the bottom, sides and front
The inspector should recommend that any ____ Within 5 to 6 feet be cut back - Correct
Answers -Tree limbs
The clearance for open overhead service conductors from the front, bottom and sides of
windows that______Is 3 feet - Correct Answers -Open
Every 5 to 6 feet, rigid service mast should be secured to ___ - Correct Answers -The
structure points
The method for installing a UF cable is __ - Correct Answers -Above ground
A service entrance with ____ Connected conductors is a phase 3 supply - Correct
Answers -Four
The typical supply for square brand electric meter is ___ amps - Correct Answers -100
Most modern 200 amp electrical meters are marked ___ - Correct Answers -200 CL
The minimum conductor size for a ___ Amp service is a 4 AWG copper or 2 AWG
aluminum - Correct Answers -100
_____ Is a direct connection to the earth to aid in removing damaging transient over
voltages due to lightning - Correct Answers -Grounding
____ Need to be bonded to the ground - Correct Answers -All panel enclosures
,Conductors between the main service disconnect to the distribution panels are called
____ - Correct Answers -Feeders
How can you bonded a remote distribution panel? - Correct Answers -By connecting the
enclosure to the grounding bus
100 Amps is the ____Service required for a new single-family home - Correct Answers -
Minimum
The electrical supply should be shut down with ___ movements of the hand - Correct
Answers -Six or fewer
A common cause of arc flashes when removing panel fronts is ____? - Correct Answers
-Incorrect fasteners
A split bus electrical panel uses a double pole breaker to ___ The120 V circuits -
Correct Answers -Isolate
Which of the following would NOT be a defect? - Correct Answers -Wire splices
Electrical service panel should be in a clear space measuring _____? - Correct Answers
-30 inches wide by 78 inches high by 36 inches deep
Fused main disconnects are usually a maximum of ___ amps - Correct Answers -100
Upgrading to ___ fuses stops over fusing - Correct Answers -S
Electric panel buses colored red, blue, and black are indicative of a ___? - Correct
Answers -Three phase supply
GFCI breakers have ____ conductors - Correct Answers -Two
What wiring would require a specialist? - Correct Answers -Solid conductor aluminum
branch wiring
Or horizontally mounted face up countertop receptacles allowed? - Correct Answers -No
The first kind of residential wiring is called? - Correct Answers -Knob and tube
"Romex " cable that is not actually of the brand romex is called? - Correct Answers -
Type NM cable
What circuit should bathroom outlets be on? - Correct Answers -20 amp GFCI
What is the minimum circuit for stoves? - Correct Answers -40 amp
, How many amps is an electrical clothes dryer? - Correct Answers -30 Amp
Recessed ceiling lights should be rated ____ if installed against insulation. - Correct
Answers -IC
In a typical residential air-conditioning system, the ____Absorbs the heat energy from
the air passing through it, and transfers heat from the passing air to the refrigerant
moving inside - Correct Answers -Evaporator
The ___ Is located inside the outdoor condenser unit and receives the low pressure
refrigerant vapor through the suction line - Correct Answers -Compressor
The maximum discharge temperature for ducts of a warm air heating system is ____ F -
Correct Answers -250
A ___ is a device used to alter the volume of air passing through a confined cross
section by changing the size of the cross section area - Correct Answers -Damper
T/F: You are required to inspect the insulation in unfinished spaces, including the attic -
Correct Answers -True
T/F: you are required to inform your client about the absence or lack of adequate
insulation in areas of the house - Correct Answers -True
Water vapor can move in three ways ___ transportation, diffusion through materials,
___ diffusion - Correct Answers -Air, thermal
___ Movement accounts for more than 98% of all water vapor movement and building
cavities - Correct Answers -Air
___ diffusion is how moisture in a vapor state moves through material because of a
difference in pressure or difference in temperature - Correct Answers -Vapor
___ Diffusion is water vapor moving through a material from a high pressure to a low
pressure or from a warm side of the wall to a cool side - Correct Answers -Vapor
___Refers to the amount of moisture contained in a quantity of air compared to the
maximum amount of moisture in the air that could hold at the same temperature -
Correct Answers -Relative humidity (RH)
4 general things you can do to prevent moisture intrusion is
1. Prevent water intrusion
2. ______
3. ______ air leaks
4. Provide an escape for moisture - Correct Answers -Ventilate, stop
PREP QUESTIONS AND ANSWERS
The typical electrical service for homes in North America is a_____? - Correct Answers
-120\240 Volt
The 240 Volt circuit is used for? - Correct Answers -Appliances
The return conductor (a.k.a. the neutral) is at ___ volts because it is grounded to the
electric panel - Correct Answers -Zero
Most 120 Volt circuits are wired to deliver ___ or ___ Amps of current - Correct Answers
-15, 20
Most ___ Buildings are supplied with 120\240 Volt services. This means that the cable
assembly is made up of ___ ungrounded conductors each supplying 120 V with one
ground - Correct Answers -Residential, two
The point of attachment of the service drop conductors to a building or structure must
have a clearance of at least ___ ft - Correct Answers -10
Vertical clearance for overhead conductors they are over public streets - Correct
Answers -18 feet
Any appliance used for heating water or storing hot water must be protected by a
_______ valve. - Correct Answers -relief
Standpipes for clothes washers should extend at least ____ inches and no more than
____ inches above the trap weir. - Correct Answers -18... 42
An open vent pipe that passes through a roof should extend at least _____ inches
above the roof. - Correct Answers -6
If a roof is used for a purpose other than weather protection, the vent extensions should
extend above the roof by at least ____ feet. - Correct Answers -7
A _______ prevents sewer gases from emanating from the drainage system. - Correct
Answers -trap
,The only type of fixture trap permitted is a(n) ___-trap. - Correct Answers -P
T/F: If a panelboard is wider than 30 inches, the workspace in front of it must extend its
full width. - Correct Answers -true
T/F: The dedicated space above an electrical panel should be kept clear of components
not related to the electrical equipment. - Correct Answers -true
Vertical clearance for overhead conductors that are over commercial parking areas -
Correct Answers -18 feet
Vertical clearance for overhead conductors that are over swimming pools? - Correct
Answers -22 feet and 6 inches, 10 feet horizontal
Vertical clearance for overhead conductors that are over residential properties? -
Correct Answers -12 feet
Vertical clearance for overhead conductors that are from sides of doors? - Correct
Answers -3 feet from the bottom, sides and front
The inspector should recommend that any ____ Within 5 to 6 feet be cut back - Correct
Answers -Tree limbs
The clearance for open overhead service conductors from the front, bottom and sides of
windows that______Is 3 feet - Correct Answers -Open
Every 5 to 6 feet, rigid service mast should be secured to ___ - Correct Answers -The
structure points
The method for installing a UF cable is __ - Correct Answers -Above ground
A service entrance with ____ Connected conductors is a phase 3 supply - Correct
Answers -Four
The typical supply for square brand electric meter is ___ amps - Correct Answers -100
Most modern 200 amp electrical meters are marked ___ - Correct Answers -200 CL
The minimum conductor size for a ___ Amp service is a 4 AWG copper or 2 AWG
aluminum - Correct Answers -100
_____ Is a direct connection to the earth to aid in removing damaging transient over
voltages due to lightning - Correct Answers -Grounding
____ Need to be bonded to the ground - Correct Answers -All panel enclosures
,Conductors between the main service disconnect to the distribution panels are called
____ - Correct Answers -Feeders
How can you bonded a remote distribution panel? - Correct Answers -By connecting the
enclosure to the grounding bus
100 Amps is the ____Service required for a new single-family home - Correct Answers -
Minimum
The electrical supply should be shut down with ___ movements of the hand - Correct
Answers -Six or fewer
A common cause of arc flashes when removing panel fronts is ____? - Correct Answers
-Incorrect fasteners
A split bus electrical panel uses a double pole breaker to ___ The120 V circuits -
Correct Answers -Isolate
Which of the following would NOT be a defect? - Correct Answers -Wire splices
Electrical service panel should be in a clear space measuring _____? - Correct Answers
-30 inches wide by 78 inches high by 36 inches deep
Fused main disconnects are usually a maximum of ___ amps - Correct Answers -100
Upgrading to ___ fuses stops over fusing - Correct Answers -S
Electric panel buses colored red, blue, and black are indicative of a ___? - Correct
Answers -Three phase supply
GFCI breakers have ____ conductors - Correct Answers -Two
What wiring would require a specialist? - Correct Answers -Solid conductor aluminum
branch wiring
Or horizontally mounted face up countertop receptacles allowed? - Correct Answers -No
The first kind of residential wiring is called? - Correct Answers -Knob and tube
"Romex " cable that is not actually of the brand romex is called? - Correct Answers -
Type NM cable
What circuit should bathroom outlets be on? - Correct Answers -20 amp GFCI
What is the minimum circuit for stoves? - Correct Answers -40 amp
, How many amps is an electrical clothes dryer? - Correct Answers -30 Amp
Recessed ceiling lights should be rated ____ if installed against insulation. - Correct
Answers -IC
In a typical residential air-conditioning system, the ____Absorbs the heat energy from
the air passing through it, and transfers heat from the passing air to the refrigerant
moving inside - Correct Answers -Evaporator
The ___ Is located inside the outdoor condenser unit and receives the low pressure
refrigerant vapor through the suction line - Correct Answers -Compressor
The maximum discharge temperature for ducts of a warm air heating system is ____ F -
Correct Answers -250
A ___ is a device used to alter the volume of air passing through a confined cross
section by changing the size of the cross section area - Correct Answers -Damper
T/F: You are required to inspect the insulation in unfinished spaces, including the attic -
Correct Answers -True
T/F: you are required to inform your client about the absence or lack of adequate
insulation in areas of the house - Correct Answers -True
Water vapor can move in three ways ___ transportation, diffusion through materials,
___ diffusion - Correct Answers -Air, thermal
___ Movement accounts for more than 98% of all water vapor movement and building
cavities - Correct Answers -Air
___ diffusion is how moisture in a vapor state moves through material because of a
difference in pressure or difference in temperature - Correct Answers -Vapor
___ Diffusion is water vapor moving through a material from a high pressure to a low
pressure or from a warm side of the wall to a cool side - Correct Answers -Vapor
___Refers to the amount of moisture contained in a quantity of air compared to the
maximum amount of moisture in the air that could hold at the same temperature -
Correct Answers -Relative humidity (RH)
4 general things you can do to prevent moisture intrusion is
1. Prevent water intrusion
2. ______
3. ______ air leaks
4. Provide an escape for moisture - Correct Answers -Ventilate, stop
