Internachi Florida State Exam prep Questions With Complete Solutions.

Internachi Florida State Exam prep Questions With Complete Solutions. 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 ___ volts because it is grounded to the electric panel Zero Most 120 Volt circuits are wired to deliver ___ or ___ Amps of current 15, 20 Most ___ Buildings are supplied with 120240 Volt services. This means that the cable assembly is made up of ___ ungrounded conductors each supplying 120 V with one ground Residential, two The point of attachment of the service drop conductors to a building or structure must have a clearance of at least ___ ft 10 Vertical clearance for overhead conductors they are over public streets 18 feet Vertical clearance for overhead conductors that are over commercial parking areas 18 feet Vertical clearance for overhead conductors that are over swimming pools? 22 feet and 6 inches, 10 feet horizontal Vertical clearance for overhead conductors that are over residential properties? 12 feet Vertical clearance for overhead conductors that are from sides of doors? 3 feet from the bottom, sides and front The inspector should recommend that any ____ Within 5 to 6 feet be cut back Tree limbs The clearance for open overhead service conductors from the front, bottom and sides of windows that______Is 3 feet Open Every 5 to 6 feet, rigid service mast should be secured to ___ The structure points The method for installing a UF cable is __ Above ground A service entrance with ____ Connected conductors is a phase 3 supply Four The typical supply for square brand electric meter is ___ amps 100 Most modern 200 amp electrical meters are marked ___ 200 CL The minimum conductor size for a ___ Amp service is a 4 AWG copper or 2 AWG aluminum 100 _____ Is a direct connection to the earth to aid in removing damaging transient over voltages due to lightning Grounding ____ Need to be bonded to the ground All panel enclosures Conductors between the main service disconnect to the distribution panels are called ____ Feeders How can you bonded a remote distribution panel? By connecting the enclosure to the grounding bus 100 Amps is the ____Service required for a new single-family home Minimum The electrical supply should be shut down with ___ movements of the hand Six or fewer A common cause of arc flashes when removing panel fronts is ____? Incorrect fasteners A split bus electrical panel uses a double pole breaker to ___ The120 V circuits Isolate Which of the following would NOT be a defect? Wire splices Electrical service panel should be in a clear space measuring _____? 30 inches wide by 78 inches high by 36 inches deep Fused main disconnects are usually a maximum of ___ amps 100 Upgrading to ___ fuses stops over fusing S Electric panel buses colored red, blue, and black are indicative of a ___? Three phase supply GFCI breakers have ____ conductors Two What wiring would require a specialist? Solid conductor aluminum branch wiring Or horizontally mounted face up countertop receptacles allowed? No The first kind of residential wiring is called? Knob and tube "Romex " cable that is not actually of the brand romex is called? Type NM cable What circuit should bathroom outlets be on? 20 amp GFCI What is the minimum circuit for stoves? 40 amp How many amps is an electrical clothes dryer? 30 Amp Recessed ceiling lights should be rated ____ if installed against insulation. 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 Evaporator The ___ Is located inside the outdoor condenser unit and receives the low pressure refrigerant vapor through the suction line Compressor The maximum discharge temperature for ducts of a warm air heating system is ____ F 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 Damper T/F: You are required to inspect the insulation in unfinished spaces, including the attic True T/F: you are required to inform your client about the absence or lack of adequate insulation in areas of the house True Water vapor can move in three ways ___ transportation, diffusion through materials, ___ diffusion Air, thermal ___ Movement accounts for more than 98% of all water vapor movement and building cavities Air ___ diffusion is how moisture in a vapor state moves through material because of a difference in pressure or difference in temperature 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 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 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 Ventilate, stop ___Typically a thin metal strip found around the door Flashing Be sure to communicate to your clients that your inspection is a ___ ,___ inspection of the readily accessible components of the house Visual, non-invasive Insulations resistance to heat flow is measured or rated in terms of its thermal resistance, a.k.a. ___ R-value Insulation in between studs in a wall does not restrict the heat flow through those studs. This heat flow is called______? Thermal bridging ______ cups of water enter through a "1/2 inch round hole via air transportation in a year" 5 And 100 square ft wall, _____ Of water can diffuse through drywall without a vapor diffusion retarder in a year 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 ____ Insulated In general, ____-cell foams allow water to move through the wall more easily then _____-cell foams Open, closed ____Of attic areas is intended to prevent the accumulation of moisture vapor in the attic Ventilation There should be a minimum of____provided between the insulation and the roof deck sheeting and at the location of the vent 1 inch The primary causes of moisture problems in crawlspaces include poor____ Site drainage _____Is an example of a class III vapor retarder Gypsum board ____Is an example of a class one vapor retarder Polyethylene sheeting The minimum height of a horizontal guard is___inches 36 Every landing should be at least____inches measured in the direction of travel 36 T/F: the required egress door is a side hinge door, with 32 inches clear width when open, and 78 inches of clear opening True The design strength of a guard should resist a____pound concentrated load applied at any point in any direction along the handrail or on top of the guard 200 Intermediate rails or balusters should be able to withstand a horizontal load of____pounds on a area equal to one square foot 50 Horizontal guards at raised floor areas, balconies and porches should have intermediate rails or ornamental enclosures that do not allow a passage of a____inch diameter sphere 4 T/F: an enclosed accessible space under stairs should be protected on the enclosed side with a half inch gypsum board True T/F: heat can move from one body to another by radiation True _____Is the transfer of heat energy by electromagnetic wave motion Radiation _____Is the transfer of heat from one molecule to another, or through one substance to another Conduction ____Is the transfer of heat by warming the air next to a hot surface and then moving that warm air Convection _____Air is less dense than_____air Hot, cold A____comes in both invasive and noninvasive models Moisture meter A home inspector is required to____the energy source Describe A home inspector is required to describe the heating____ Method ______Is an effective means of inspecting for water leaks and moisture problems Thermography A_______can be used to tell the difference between aluminum pipes and steel pipes Magnet Many home inspectors start their home inspection by inspecting the______first Exterior ______Is the greatest destroyer of houses Water ______Is one of the main concerns when inspecting the HVAC system Water (or moisture) T/F: the inspector shall inspect all exterior doors True T/F: the inspector shell inspect all of the windows False T/F: the inspector shall inspect the fascias True T/F: the inspector shell describe the exterior wall covering True Some pilasters can add_____support Lateral