North Carolina Home Inspection Licensing Exam Study Guide 200+ questions and correct answe, Exams of Construction

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Licensing Exam Study Guide

The ________ and _________ breaker panels are known to be major electrical fire hazards and have been recalled. - correct answer FPE Stab-lok and Zinsco The service drop cable running over a 4:12 or greater pitch roof has to be ____ over the ridge. - correct answer 3' If you have a 8 gauge stranded aluminum cable running to a 40 amp breaker that goes to an electric stove and a 10 gauge single strand copper cable running to a 40 amp breaker that goes to the condenser unit, which one is wrong and how would you fix it? - correct answer The aluminum wire is too small for the breaker, it requires a 6 gauge wire In the sub panel the grounding bus bar has been bonded to the neutral bus bar, this action is called what? - correct answer Parallel Paths Indoor staircases are required to have a three-way switch at the top and bottom if they have __ or more risers. - correct answer 6 In a complete circuit the ___ wire carries the current with no energy back to the source. - correct answer Neutral Every Home must have at least __ plumbing Vents extending through the roof by at least __ inches. - correct answer 1 and 6 inches Minimum size for the bathroom drain fixtures? - correct answer 1 ¼ in Must have a union fitting on all pipes within __ feet of the water heater? - correct answer 5 ft What does the R-Value mean in attic Insulation? - correct answer Resistant Electric Safety eye sensor should be __ Inches from floor? - correct answer 3 - 6" With a vapor Barrier there should be __ Sqft per __ of attic Space? - correct answer 1 sq ft per 300 Sq ft What should a steam boil have to prevent cross connections? - correct answer BFP: back flow preventer _______ are any material which allow its electrons to move through the material. - correct answer Conductors A complete circuit must include a ______. - correct answer Load The amount of energy is known as _____. - correct answer Amps The pressure behind electrical current is _____. - correct answer Volts The resistance to current flow is known as ______. - correct answer Ohms

Licensing Exam Study Guide

Higher Amp circuits need thicker wire gage because more amps generate more _____. - correct answer Heat The rate of work or power is known as _____. - correct answer Watts Doubling the ____ quadruples the amount of ____ generated. - correct answer Current / heat Service ____ are overhead from a utility pole and service ____ are underground from a utility trench. - correct answer Drops / Laterals The neutral wire has the same _____ as the black/hot wire but does not have the ____ to shock you. - correct answer Amps / Energy How many wires in a Three Phase service drop cable? - correct answer 4, (3) 120 volts and (1) neutral A Mansard style of roof is most likely to have leaks where? - correct answer The eyebrows You are inspecting a 25 year old roof that has cedar shakes, the full length of the shake is 24", how much of the cedar shake can be exposed? - correct answer 8" / ⅓ of the shingle _____ is a moisture protection barrier that is installed on top of the roof sheathing prior to installing shingles. - correct answer Underlayment You are inspecting a home in December that has architectural shingles and notice ice damming around the eaves and gutters of the roof, what are two things that could cause this? - correct answer Lack of ventilation and Lack of Insulation in the attic ______ flashing is always interwoven with each course of roof material, starting at the eaves (bottom roof edge) and working up. - correct answer Step Flashing The ______ is a secondary drain that is cut into the parapet walls on a flat roof to allow water to escape in the event the primary drain clogs. - correct answer Scupper Cedar shakes require a minimum roof pitch of ____. - correct answer 4:12 pitch There is a "B" Vent on the ridge of a 5:12 pitch roof that has a plumbing vent that is 9 feet away. How tall should the "B" vent be? - correct answer 12" The top part of the chimney is called what? - correct answer Crown What shingles on the roof area have the least amount of wear? - correct answer The Cap or ridge shingles Weather deck is the material placed under what type of roof? - correct answer Wood Shingles

Licensing Exam Study Guide

What determines the size of your roof gutters? - correct answer The average yearly rainfall in your area Where are the most amount of leaks in a roof area? - correct answer At roof penetrations Which shingle typically lasts the longest if installed correctly, and which part of this shingle typically fails first? - correct answer Slate Shingles / the nails What device is present on a heat pump but not on an A/C unit? - correct answer Reversing Valve What is it called when the outside temperature at which capacity of the heat pump matches building heat loss? - correct answer Balance Point What should the temperature drop be across the evaporator coil? - correct answer 15 - 20 degrees What data is required by the SOP when inspecting a central A/C unit? - correct answer Max Breaker, Tonnage, Age What is the most common cause for frost on the line set? - correct answer Air filters are dirty What components make up an A/C unit and where are they located? - correct answer Condenser Outside / Evaporator Coil Inside What is it called when a refrigerant absorbs heat when changing from a liquid to a gas? Also, does it happen inside or outside? - correct answer Endothermic / Inside What is it called when a refrigerant releases heat when changing from a gas to a liquid? Also, does it happen inside or outside? - correct answer Exothermic / Outside What is an A/C measured in? - correct answer Tonnage What is heat measured in? - correct answer BTU / British Thermal Units Where is the capacity and age found on an A/C unit? - correct answer Capacity - Model Number / Age - Serial Number A heat pump should be tested in cooling mode only if the outside temperature is at or above what temperature? What is the temperature if it was in heat mode? - correct answer Above 60 - 65 degrees / Below 60-65 Degrees What is the key factor of geothermal heat pumps? - correct answer Ground Loops Which line of the A/C unit has to be insulated through its entire length? - correct answer Suction Line

Licensing Exam Study Guide

What does SEER stand for? - correct answer Seasonal Energy Efficiency Ratio 3 Main type of Rafters? - correct answer Purlins, Collar Tie, Knee Wall What is the maximum diameter of a hole you're able to cut on a joist? Fraction depth? - correct answer 2" / 1/ How much bearing do you need for a Joist? - correct answer 1 ½" or rim board, 3" on beam What 3 main types of foundations? - correct answer Basement, Crawl Space, Slab What soil type are houses commonly built on? - correct answer Clay What is usually the first thing you need to know when starting a house's foundation? - correct answer Frost Depth What is it called when the ceiling lifts up away from the walls inside a house? - correct answer Truss Uplift What is the max overhang for a deck? - correct answer ¼ or deck span or 24", whichever is smaller When an I-joist deflects under a load the top flange is___ and Bottom is ___? - correct answer compression/tension What is used to transfer the load around an I-joist at the bearing wall? - correct answer Squash Blocks SOP applies to _____ or fewer dwelling units. - correct answer 4 Attached garages should have a _____ between the house and garage - correct answer Firewall Vapor barriers should be installed against the _____ wall or ceiling surface to help prevent migration of moisture into the insulation. - correct answer Heated, but really conditioned Blown-In fiberglass insulation has an R-value of R = ____ per inch. Celluse is R = ____ per inch - correct answer 3, 3. Minimum ceiling height for habitable rooms is ____ feet. - correct answer 7 ft Stair risers are ___ to ___ inches tall and stair treads are ___ to ____ inches deep (nose to kick). Max discrepancy between risers is ____ inch. - correct answer 7, 8, 9, 11, 3/ Safety glass is required within ____ inches of a tub or shower floor. - correct answer 60 Egress window minimum height is ____ inches. - correct answer 24" Cabinets must be at least _____ inches above the stove. - correct answer 30

Licensing Exam Study Guide

Bottom edge of siding is to be ____ inches above the ground - correct answer 6 Where siding and roofing meet a ____ inch gap is required. - correct answer 1 _____ flashing, which is at the bottom of a step flashing run, keeps water from getting under the siding. - correct answer Kickout (diverter) Weep holes in brick siding to be spaced no more than ____ inches apart. - correct answer 33" or 48" Bowing brick siding is a sign of missing or broken ______ ______. - correct answer Masonry ties Graspable handrails are no more than ____ inches in diameter for round or _____ inches in cross section for all other shapes - correct answer 2, 2 ¼ Decks _____ inches and higher must have perimeter railings - correct answer 30 Stair handrails are to be ____ to _____ inches above tread nose - correct answer 34, 38 Plumbing vents protruding a roof should be at least ________ feet away and ________ feet above any operable window. - correct answer 10 feet, 2 feet What is needed if you don't find a vent stack protruding a roof? ___________ - correct answer Air Admittance Valve A 4 inch drain pipe needs how much pitch? _______ - correct answer ⅛" per foot Drain waste vent systems require a clean out within _____ feet of the building. - correct answer 5 feet Two things whirlpool tubs require are ________ and _________ - correct answer Pump Access Panel and GFCI A _______ is required for a dishwasher to prevent a cross connection - correct answer High Loop A gas water heater in a garage needs to be _______ inches off the ground - correct answer 18 Inches What is the minimum rise of vent connectors is _____ per foot - correct answer ¼" per foot Gas appliances require a ________ and _________ before the union. - correct answer Drip leg and shut off valve All water heaters have a ________ valve and must be piped _______ inches from the floor - correct answer Temperature and Pressure Relief Valve (TPR) and 6" / 1" off Pan

Licensing Exam Study Guide

Tankless water heaters require a ________ on the hot water supply. - correct answer Pressure Relief Valve (PRV) CSST gas piping systems shall be bonded to the electrical service grounding system at the point where the gas service enters the building and shall not be smaller than _______ AWG copper wire. - correct answer 6 Gauge Propane tanks 125 gallons or less must be ______ feet away from windows/openings - correct answer 5 Feet Flexible appliance connectors can be maximum of ______ feet except _________ and ___________ can be ________ feet. - correct answer 3 Feet, Dryers and Ranges, 6 Feet What is the sufficient combustion air per one thousand BTU? ___________ - correct answer 1 Sq Inch How much should a lintel bear onto masonry? - correct answer 4" or 6" How much load (In PSF) is the bottom chord of a roof truss under in a inhabitable attic space (Could be finished into a room)? - correct answer 40 PSF How much should an I-Joist bear on wood? And Masonry/concrete? - correct answer 1 ¾" / Cannot bear on Masonry/concrete On a deck with joists spanning between 10'1" to 12'0", what is the spacing of ½" lag screws that attach the ledger board to the rim joist? And ½" Bolts? - correct answer 15" / 29" You're inspecting a heat pump in the wintertime: You go outside and observe an ice formation on the condenser coils after running it. What is wrong with the unit? - correct answer The defrost cycle isn't functioning properly To safely transfer the combined weight of the occupants furnishings and the house itself to stable ground? - correct answer Structural Goal A readily accessible and observable aspect of a system such as a floor or wall but not boards or nails? - correct answer Component A reasonable flow at the highest fixture in a dwelling when another fixture is open simultaneously? - correct answer Functional Flow Attached or connected as such that the item requires tools to remove? - correct answer Installed Aluminum wire was installed in residential construction as branch wiring between_____ and_______? - correct answer 1969 - 1971

Licensing Exam Study Guide

A single wall vent from an oil furnace and a B-vent from a water heater are both running through a chimney chase that does not serve as a fireplace. How high must each be above the roof? - correct answer Oil is 2- 2 - 10 , gas is 1- 2 - 8, but since they are in a chimney it should be 3 feet about the roof (3- 2 - 10) Mid-Efficiency forced air furnaces achieve what percentage range of efficiency? - correct answer 80 - 83% You enter an attic of a 1960's ranch home on the West side of the structure through an access hatch. A low efficiency furnace is on the East side of the home. The roof is framed with collar ties. You must use the collar ties like monkey bars to get to the furnace 30 feet away and land on a 30" x 30" platform. The flame burns orange. What 4 items are you writing up? - correct answer Low efficiency furnace past expected life span, no walkway, unit too far from access hatch, cracked heat exchanger It's 52 degrees outside. You approach a panel box in the basement of a 1972 house. You open the panel box door and all breakers are on, but there is no main breaker. You remove the cover. There's a 240 volt breaker pair going to a heat pump condenser/compressor, a tankless water heater, range in the kitchen and clothes dryer. There are (2) 120 volt breakers for basement lights and (2) 120 volt breakers for main floor lights. The GEC is running to an underground water pipe 8 ft from the pipe's entrance to the basement. What 3 items do you report? - correct answer Can't test the heat pump in cooling mode, maximum number of breakers exceeds allowable 6 throw without main shutoff, GEC to attach to pipe within 5 feet of building entrance On a 10'1'' to 12' deck, how far can 1/2" lag screws be spaced apart? _______ And how far can 1/2" bolts be spaced apart? - correct answer 15" / 29" Floor heaving along the outer wall is often a sign of ____________ - correct answer Foundation Settlement ___________ furnaces can produce sulfuric acid or hydrochloric acid in their condensation process. - correct answer Condensing Furnace Name 4 components to a circulating boiler other than a tridicator and a circulating pump - correct answer Compression Tank, Backflow Preventer, Pressure Relief Valve, Pressure Reducing Valve What is used to prevent galvanic corrosion? - correct answer Dielectric Union As an inspector are you required to operate automatic safety controls? - correct answer No, the SOP states you're not required

Licensing Exam Study Guide

You're inspecting an older home and you find the furnace has no fan, only an opening to allow air to flow in. What type of furnace is this and how efficient is it? Also, what is the opening called? - correct answer Natural Draft furnace, 60- 6 5% efficient, Draft Diverter During your inspection you find a high-efficiency furnace in a closet that is attached to the bedroom. Upon inspection you see one PVC pipe venting to the outside, what do you report? - correct answer You should not have a combustion furnace in the bedroom closet, especially since there is only one PVC pipe coming from the furnace, which means either its exhausting into the home or pulling air from the home. Furnaces need ______ of clear space in front of the unit for servicing. - correct answer 30" Where two vent connectors enter a chimney, the ________ vent (higher BTUs) should be below the ___________ vent connector. - correct answer Larger, Smaller When replacing an existing furnace with a heat pump you must do what (Besides changing the fan)? - correct answer Resize the smaller air ducts Heat energy which changes the temperature of a substance without changing its form. I.e. heat energy to raise tap water to 212°F water. This is called what? - correct answer Sensible Heat On an oil furnace flapping of barometric damper indicates ______ ______. - correct answer Puff Back A double vent that is used to bring in exterior air for combustion and send the combustion products outside is called a ___________. - correct answer Concentric Vent When inspecting a fireplace you note that the opening is 7 Sq feet, what size hearth extension should you expect to see? - correct answer 20" deep and 12" to each side How many degrees difference is there between heat and emergency auxiliary heat on a heat pump thermostat? - correct answer 3 Degrees A masonry fireplace requirement: an opening that is less than 6sqf than you need ______ on sides and ________ in front? - correct answer 8" / 16" A wood stove must have the following clearances ______ from a non combustible wall ______ from an unprotected wall? - correct answer 18" / 36" No point along the wall line of a countertop can be more than ______ from a receptacle cannot be more than ______ above countertop? - correct answer 24" / 20" Heat energy which changes the form of a substance without changing its temperature ______?

• correct answer Latent Heat

Licensing Exam Study Guide

What is the charge for violating the provisions of the Home Inspector Licensure Act? - correct answer Class 2 Misdemeanor What form of insurance is a home inspector required to have? - correct answer General Liability The "Limitation of Liability Clause" limits a home inspector's liability to how much money? - correct answer The Inspection fee How many credit hours of continuing education are required each year? - correct answer 12 The most important part of a truss? - correct answer Gusset Plate Allowable deflection of structural member supporting floors and plastared ceiling = L / XXX - correct answer 360 At the end of a joist, the maximum it can be notched is _____ it's depth. - correct answer ¼ Houses are commonly built on what type of soil? - correct answer Clay Span for different size decks depends on the _____ __ _____. (hint, 3 words) - correct answer Species of wood The most common gutter defect? - correct answer Leaking at joints / seams Notches in the top or bottom of solid wood joist can be a maximum cut _________ of the joist depth and are not allowed in the ________ ________ of the span. - correct answer ⅙ / Center third Maximum notch at the end of a solid wood joist is _______ of the depth. - correct answer ¼ Holes in an I-joist must have a minimum of _______ web material from the edge of the hole to the flanges. - correct answer ⅛" What is an I-joist minimum support at a beam? ________. - correct answer 3 ½" What is the limit of maximum size holes per span on an I-joist? - correct answer 3 Maximum size holes On a brick house, you notice cracks above a door. Nothing appears to be defective with the foundation. What is the most common defect? - correct answer Rusting lintel What is required on a high side of a chimney 30" or larger? - correct answer Cricket Name 4 types of flashing other than plumbing vent flashing (boots) - correct answer Step flashing, counter flashing, headwall flashing, drip edge flashing

Licensing Exam Study Guide

What are 3 types of valleys? - correct answer Open, Cut, Woven EPDM rubber roof is fully adhered to what? - correct answer Poly Styrene Board Name 6 kitchen appliances an inspector must observe and operate. - correct answer Dishwasher, range/oven, trash compactor, garbage disposal, hood vent, microwave oven (permanently installed) What part of a trash compactor is usually missing which can cause arcing? - correct answer Strain relief on the bottom where the power cord enters the unit What is the term used when multiple GFCI outlets are "linked" to one another? Ex. There are 3 GFCI outlets in the kitchen along the countertop and only one has a reset button. - correct answer Daisy chain Minimum height a kitchen cabinet can be over a stove is ____ inches. - correct answer 30" What is the distance requirement for tempered windows that are in a bathroom/stairway or doorway? ___inches above a tub. ____ inches above a stair landing. ____ inches on either side of a door. - correct answer 60" above a tub, 36" above a stair landing, 24" on either side of a door What item is usually found in a kitchen island under the sink for proper water drainage? - correct answer AAV (air admittance valve) What item is recommended and sometimes required for stoves in a kitchen? - correct answer Anti-tip bracket or device You see a CSST line in the kitchen hooked to the gas stove. What does CSST stand for? - correct answer Corrugated stainless steel tubing You test an outlet in the kitchen with your outlet tester. The outlet shows proper grounding but the outlet will not trip when you try to reset the GFCI. What could be the issue? - correct answer False ground/ Boot leg ground The trash compactor is hooked into the plumbing drain line in the kitchen. In relation to the P- trap, where should this line be connected? - correct answer Sink side (above/before the P-trap) In a gas fired furnace incomplete combustion will produce what? Hint: (A type of gas) - correct answer Carbon Monoxide On an A/C unit, for every ton you have it cools ____ sqft of the home. - correct answer 600 Sqft of the home

Licensing Exam Study Guide

A water heater should be set to ____ Fahrenheit to prevent scalding, if it is set above that temperature a ______ _______ should be installed. - correct answer 120 Fahrenheit, Temper Valve All showers and bathtubs are required to have a trap below the floor within _____, while every other fixture requires a trap to be in the same room. - correct answer 24" You are inspecting a home that has a gas dryer, the gas dryer has a brass appliance connector that is six feet long, it also has a gas shut off valve and a union. What are you reporting to the client? - correct answer Brass appliance connectors are not proper, you should recommend immediate review by a qualified heating contractor The groves cut into a chimney for counter flashing are called what? - correct answer Reaglets Flat roofs often have a __________ wall along the perimeter and the top is covered by _______

• correct answer Parapet Wall / Coping What is the lifespan on cedar shingles ________ and cedar shakes _________ - correct answer 10 - 25 yrs / 20-40 yrs You find white chalky deposits on masonry and concrete due to chronic moisture. What is this called? - correct answer Efflorescence What is the formula for Ohm's Law? - correct answer Amps x Volts = Watts What substance is used to bond black iron pipes together? - correct answer Pipe Dope At what outside temperature should you not test a gas furnace located in an attic? - correct answer You can test it at any temperature What size air conditioner should you use for a 1800 sq ft home? - correct answer 3 Ton When installing a roof, the surface graining of the sheathing should run _______ with the rafters. - correct answer Perpendicular You are inspecting a building with a flat-roof, which has a gas vent pipe penetrating the roof. This flat roof also has a roof-top patio, how high should the top of the gas vent pipe be above the flat roof? - correct answer 7 feet tall You are inspecting a 1978 house and notice that there is a slight dipping of the sheathing between the roof trusses. What is the cause of this? The trusses are properly installed, and the roof has it's original sheathing. - correct answer ⅜" plywood (it's too thin to bear the weight properly.)

Licensing Exam Study Guide

How do you properly splice a cracked wood member? - correct answer By placing ½" plywood on both sides of the damaged wood at least two feet in either direction of the break. As a licensed home inspector, you are required to carry a minimum of _________ dollars of liability insurance. - correct answer 250, __________ ___________ means a space in a building for living, sleeping, eating or cooking. - correct answer Habitable Space ___________ ___________ means, for multiple identical components such as windows and electrical outlets, one such component per room; and, for multiple identical exterior components, one such component on each side of the building. - correct answer Representative Number __________ ___________ means an inspection involving the use of measurements, instruments, testing, calculations, and other means to develop scientific or engineering findings, conclusions, and recommendations. - correct answer Technically Exhaustive __________ ___________ of an outlet may damage some types of equipment since it can cause the case or chassis frame to become charged with electrical current. - correct answer Reversed polarity Conventional furnace flue gases vent out at a temperature of _____ - ______ whereas high efficiency furnaces can use PVC pipe because they vent out at _____ - ______. - correct answer 450 - 550 Fahrenheit / 120 - 130 Fahrenheit While inspecting a basement you find large amounts of rust on the steel columns, this would indicate what? - correct answer Long-term moisture or water problem in the area While walking on a roof, you notice that the shingles in the valley are splitting while the rest of the roof is in great condition. What is the most common cause of valley shingles splitting - correct answer When the valley shingles were installed they were nailed too tightly What type of wiring conduit is used outside on AC units? - correct answer LiquidTight Flexible Conduit What is the main function of grounding? - correct answer To protect electrical equipment Completing a circuit at the earth is? _____________ And completing a circuit at the transformer is? - correct answer High resistance / Low resistance Exterior service panels should have how much clearance from a wall? - correct answer ¼" gap behind the panel

Licensing Exam Study Guide

Permanently connecting electrical metal components together is called what? - correct answer Bonding Bonding grounds and neutrals in a sub panel is known as? - correct answer Parallel Paths For the GEC (Main Grounding Wire) 125 amp service or less use what size wire? ___________ 150 and 175 amp use what size wires? ______ _____ 200 amp uses what size wire? ____________ (For both copper and aluminum?) - correct answer 8 # / 6# - 6# / 4# - 4# / 2# Double lugging is only allowed with? - correct answer Two ground wires of the same size GFCI's do what? - correct answer Ground fault circuit interrupter, they protect people from electrocution AFCI's do what? - correct answer Arc Fault Circuit Interrupter, prevents arcing and electrical fires If a pilot light gets extinguished on a gas water heater, how long after the pilot goes out does the gas automatically get shut off. - correct answer 50 seconds What is an Interlock switch in relation to an A/C or a furnace? - correct answer Trigger on the blower compartment that automatically turns off the fan. LP Gas is the same as _____. - correct answer Propane What is the composition of the Home Inspection Licensure Board? Number of members and their position/profession? - correct answer 8 members, 4 home inspectors, 1 realtor, 1 contractor, 1 DOI appointee, 1 member of the public Fog on glass can be a sign of what type of toxic gas? - correct answer Carbon Monoxide Service entrance cable size for 60 amp Copper / aluminum - correct answer 6# / 4# Service entrance cable size for 100 amp Copper / aluminum - correct answer 2# , 3# / Service entrance cable size for 150 amp Copper / aluminum - correct answer 1# / 2/ Service entrance cable size for 200 amp Copper / aluminum - correct answer 2/0 / 4/ Service entrance cable size for 400 amp Copper - correct answer 400 kcmil gauge What are three ways heat is transferred? - correct answer radiation, conduction, convection Name three draft vent types and their fuel relation? - correct answer The term __________ refers to air needed for the safe operation of all fuel burning appliances.

• correct answer Combustion Air

Licensing Exam Study Guide

The term __________ refers to the replacement of air for all appliances. - correct answer Make-Up Air What are the three types of ignition systems on a gas furnace? - correct answer Direct Ignition, Intermittent What is the average natural gas pressure? - correct answer 2 PSI Steam Boiler: What is the operating temperature? - correct answer 215 Farhenhiet Steam Boiler: Relief valve blows at what PSI? - correct answer 15 PSI Steam Boiler: Hartford loop goes on what side? - correct answer Return Side Steam Boiler: ___ to ____ PSI is normal pressure - correct answer .5 - 2 PSI Circulating Boiler: What side does the pump go on? - correct answer Return SIde Circulating Boiler: Operates at what temperature? - correct answer 140 - 160 Farhenheit Circulating Boiler: What is it's normal operating pressure? - correct answer 12 - 15 PSI Circulating Boiler: The relief valve blows at what PSI? - correct answer 30 PSI What four elements must be presented in an electrical service equipment? - correct answer Max exposure of single coarse wood shake is _______ inches. - correct answer 11 1/ What is more likely to cause injury to your client: Uneven stair tread risers or interior stairs with no hand rails? - correct answer No Hand Rails Licensure board has to meet ____ times per year. - correct answer 6 Sewer discharge pump continues to run after shutting off all taps, what is wrong with the discharge pump? - correct answer Faulty Valve Sewer vent pipe minimum height on flat roof? On 3:12 pitch roof? - correct answer 12" / 6" Are clogging of gutters affected by roof pitch? - correct answer Yes Fiberglass shingles are most likely to leak where? Asphalt shingles are most likely to leak where? - correct answer Valleys / Roof Penetrations What determines the size of a TPR valve? - correct answer Amount of BTUs A chimney flue must be what fraction of a fireplace opening? - correct answer 1/ What is the minimum sill width? - correct answer 3"

Licensing Exam Study Guide

Can you drill a hole in the middle third of an I-joist? - correct answer Yes A thermostat is a normal operating control AND a ______ _______ _______. - correct answer Automatic Safety Control You have a gas furnace in a closet off a hallway. On the door are 2 openings. The furnace is 10,000 BTUs. How many total square inches of opening must you have (2 openings added together)? Where must the 2 openings be placed on the door? - correct answer Both most be 10 Sq inches, one must within be 12 inches from the floor and the must within be 12 inches from the ceiling 1 PSI of pressure is equal to a column of water measuring ______ feet high - correct answer

What type of foundation has a large amount of reinforced steel and is known as a floating foundation? - correct answer Mat foundation slab The MINIMUM width of stairways (not considering railings) is what? - correct answer 36" The name of the pan located under the evaporator coil of an air conditioner unit is called what?

• correct answer Condensate Collection Pan There are basically two types of central air-conditioning systems used in residential structures: split systems and _______ systems. - correct answer Integral What is the minimum size copper grounding wire required for a CSST gas line? - correct answer 6# A spark arrestor on a chimney cap should have wire mesh that is no larger than _______. - correct answer ½" The most common seam used on a metal roof is the ___________. - correct answer Standing Seam A 50 gallon gas water heater will take care of a family of what size? - correct answer 8 People Most electric hot water heaters have ______ anode rods to protect exposed steel around the tappings inside the tank. - correct answer Magnesium What is the proper way to nail a floor joist to a girder? - correct answer Ledger Strip What is the proper way to attach a floor joist to a girder? - correct answer Joist Hanger Do you size HVAC ducts for heat or A/C? - correct answer A/C due to cool air being more dense

Licensing Exam Study Guide

Is a thermostat considered a normal operating control or a safety device? - correct answer Both What is the proper way to ground a metal building? - correct answer Using a metal girder clamp with a bare copper ground wire Name a type of insulation that is considered an environmental hazard - correct answer UFFI (Urea formaldehyde foam insulation) A sump pump continues to short cycle after a light rainstorm. What is the problem? - correct answer The shut-off switch is set too low