Internachi Florida State Exam prep | 500+ Questions with 100% Correct Answers | 33 Pages
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The typical electrical service for homes in North America is a_____? - 120240 Volt The 240 Volt circuit is used for? - Appliances The return conductor (a.k.a. the neutral) is at ___ vol ts because it is grounded to the electric panel - Zero Most 120 Volt circuits are wired to deliver ___ or ___ Amp...
internachi florida state exam prep | 500 questions with 100 correct answers | 33 pages
internachi florida state exam prep
the typical electrical service for homes in north america is a
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Internachi Florida State Exam prep | 500+
Questions with 100% Correct Answers | 33 Pages
The typical electrical service for homes in North America is a_____? Correct Answer: 120\240
Volt
The 240 Volt circuit is used for? Correct Answer: Appliances
The return conductor (a.k.a. the neutral) is at ___ volts because it is grounded to the electric
panel Correct Answer: Zero
Most 120 Volt circuits are wired to deliver ___ or ___ Amps of current Correct Answer: 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
Answer: 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 Answer: 10
Vertical clearance for overhead conductors they are over public streets Correct Answer: 18 feet
Vertical clearance for overhead conductors that are over commercial parking areas Correct
Answer: 18 feet
Vertical clearance for overhead conductors that are over swimming pools? Correct Answer: 22
feet and 6 inches, 10 feet horizontal
Vertical clearance for overhead conductors that are over residential properties? Correct Answer:
12 feet
Vertical clearance for overhead conductors that are from sides of doors? Correct Answer: 3 feet
from the bottom, sides and front
The inspector should recommend that any ____ Within 5 to 6 feet be cut back Correct Answer:
Tree limbs
The clearance for open overhead service conductors from the front, bottom and sides of windows
that______Is 3 feet Correct Answer: Open
Every 5 to 6 feet, rigid service mast should be secured to ___ Correct Answer: The structure
points
The method for installing a UF cable is __ Correct Answer: Above ground
,A service entrance with ____ Connected conductors is a phase 3 supply Correct Answer: Four
The typical supply for square brand electric meter is ___ amps Correct Answer: 100
Most modern 200 amp electrical meters are marked ___ Correct Answer: 200 CL
The minimum conductor size for a ___ Amp service is a 4 AWG copper or 2 AWG aluminum
Correct Answer: 100
_____ Is a direct connection to the earth to aid in removing damaging transient over voltages due
to lightning Correct Answer: Grounding
____ Need to be bonded to the ground Correct Answer: All panel enclosures
Conductors between the main service disconnect to the distribution panels are called ____
Correct Answer: Feeders
How can you bonded a remote distribution panel? Correct Answer: By connecting the enclosure
to the grounding bus
100 Amps is the ____Service required for a new single-family home Correct Answer: Minimum
The electrical supply should be shut down with ___ movements of the hand Correct Answer: Six
or fewer
A common cause of arc flashes when removing panel fronts is ____? Correct Answer: Incorrect
fasteners
A split bus electrical panel uses a double pole breaker to ___ The120 V circuits Correct Answer:
Isolate
Which of the following would NOT be a defect? Correct Answer: Wire splices
Electrical service panel should be in a clear space measuring _____? Correct Answer: 30 inches
wide by 78 inches high by 36 inches deep
Fused main disconnects are usually a maximum of ___ amps Correct Answer: 100
Upgrading to ___ fuses stops over fusing Correct Answer: S
Electric panel buses colored red, blue, and black are indicative of a ___? Correct Answer: Three
phase supply
GFCI breakers have ____ conductors Correct Answer: Two
,What wiring would require a specialist? Correct Answer: Solid conductor aluminum branch
wiring
Or horizontally mounted face up countertop receptacles allowed? Correct Answer: No
The first kind of residential wiring is called? Correct Answer: Knob and tube
"Romex " cable that is not actually of the brand romex is called? Correct Answer: Type NM
cable
What circuit should bathroom outlets be on? Correct Answer: 20 amp GFCI
What is the minimum circuit for stoves? Correct Answer: 40 amp
How many amps is an electrical clothes dryer? Correct Answer: 30 Amp
Recessed ceiling lights should be rated ____ if installed against insulation. Correct Answer: 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 Answer: Evaporator
The ___ Is located inside the outdoor condenser unit and receives the low pressure refrigerant
vapor through the suction line Correct Answer: Compressor
The maximum discharge temperature for ducts of a warm air heating system is ____ F Correct
Answer: 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 Answer: Damper
T/F: You are required to inspect the insulation in unfinished spaces, including the attic Correct
Answer: True
T/F: you are required to inform your client about the absence or lack of adequate insulation in
areas of the house Correct Answer: True
Water vapor can move in three ways ___ transportation, diffusion through materials, ___
diffusion Correct Answer: Air, thermal
___ Movement accounts for more than 98% of all water vapor movement and building cavities
Correct Answer: Air
___ diffusion is how moisture in a vapor state moves through material because of a difference in
pressure or difference in temperature Correct Answer: 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 Answer: 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 Answer: 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 Answer: Ventilate, stop
___Typically a thin metal strip found around the door Correct Answer: Flashing
Be sure to communicate to your clients that your inspection is a ___ ,___ inspection of the
readily accessible components of the house Correct Answer: Visual, non-invasive
Insulations resistance to heat flow is measured or rated in terms of its thermal resistance, a.k.a.
___ Correct Answer: R-value
Insulation in between studs in a wall does not restrict the heat flow through those studs. This heat
flow is called______? Correct Answer: Thermal bridging
______ cups of water enter through a "1/2 inch round hole via air transportation in a year"
Correct Answer: 5
And 100 square ft wall, _____ Of water can diffuse through drywall without a vapor diffusion
retarder in a year Correct Answer: 1 cup
If ducts of the HVAC system run through uncondition spaces in the house, such as a crawlspace
or attic, then the ductwork should be ____ Correct Answer: Insulated
In general, ____-cell foams allow water to move through the wall more easily then _____-cell
foams Correct Answer: Open, closed
____Of attic areas is intended to prevent the accumulation of moisture vapor in the attic Correct
Answer: Ventilation
There should be a minimum of____provided between the insulation and the roof deck sheeting
and at the location of the vent Correct Answer: 1 inch
The primary causes of moisture problems in crawlspaces include poor____ Correct Answer: Site
drainage
_____Is an example of a class III vapor retarder Correct Answer: Gypsum board
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