There is no gravel behind the wall. ✔✔A poured concrete retaining wall with weep holes is rotating. What is the most likely reason for the rotation? The gutters are blocked. ✔✔A poured concrete basement wall has a 1/4" wide crack where the wall is bowing slightly. Brown stains are below the crack. What is the most likely reason for this condition? The soil has settled at the foundation. ✔✔A concrete block basement wall has significant efflorescence. What is the most likely reason for this condition? The soil under the walkway was not compacted. ✔✔A concrete driveway is 1/2" higher than the adjacent concrete walkway. What is the most likely reason for this condition? A 1/2" diameter hot-dipped galvanized steel machine bolt. ✔✔Which is the most acceptable fastener for connecting a deck ledger to a band board? At support by different structural components. ✔✔A movement joint should be installed in brick veneer: Stucco ✔✔Adhered masonry veneer is installed in the same manner as: Modified Bitumen ✔✔Which roof covering is most appropriate for a roof with a slope of 1 1/2:12 above a single family house? Assume standar installation of any required underlayment. Copper nails ✔✔What is the most appropriate fastener material for a slate shingle roof covering? A parapet wall. ✔✔A scupper would most likely be located in: Kick out flashing was not installed. ✔✔A sidewall extends past a roof. Hardboard siding is water damaged a few inches beyond where the roof and sidewall meet. The roof covering is asphalt strip shingles. What is the most likely cause of this condition? Truss uplift. ✔✔A 1/2" wide gap exist between the drywall wall and ceiling. The seller reports that this gap opens in the winter and closes in the summer. What is the most likely cause of this condition? The upper part of an attic. ✔✔A collar tie would most likely be found in: The soil is unstable under the footing. ✔✔A concrete basement wall has a crack that varies in width between 3/8 inch at the floor to 1/8 inch 2 feet down from the wall top. What is the most likely cause of this condition? 0 inches. ✔✔A notch in a 12' long 2x10 floor joist is located 5 feet from the joist end. What is the MAXIMUM allowed notch depth? Wall bracing ✔✔Racking is most likely to occur from failure to install: The floor joist span is too long. ✔✔You see a ceramic tile floor with numerous cracks running through the grout and the tiles. The floor system is constructed using 2x10 floor joists. Which is the most likely cause of this condition? The wall is improperly braced. ✔✔You see uniform width cracks at both upper corners of all windows along one top story wall. Which is the most likely cause of this condition? Provides an alternate return path for electricity. ✔✔The grounding electrode of a house: 2 ✔✔How many energized conductors supply 240 volts, 200 amp, single phase electric service? Current ✔✔A circuit breaker protects against too much: Metal touching an energized conductor. ✔✔Which event is most likely to cause an arc flash? The neutral conductor is loose at the terminal bar. ✔✔A subpanel in a detached building has melted insulation on a neutral conductor. What is the most likely cause of this condition? On top of ceiling joist located 6' from the attic access opening. ✔✔In which location may NM cable be installed? Replace the receptacle with a GFCI receptacle. ✔✔A 2-slot receptacle has been replaced with a 3- slot receptacle in a branch circuit that does not contain an equipment grounding conductor. Which method is permitted? Phoenix, AZ ✔✔Where would an evaporative cooler be most effective? Warmer than the outside air temperature. ✔✔When a heat pump is operating in the cooling mode the temperature of the liquid line should be a few degrees: A decrease in the sensible load. ✔✔The effect of high humidity on an air conditioning system will be: A 90 degree bend in the duct. ✔✔What is most likely to cause the greatest reduction of air flow in a flexible air duct? Ice forms on the evaporator coil. ✔✔What is the most likely result of insufficient air flow across the evaporator coil? Heat flowing from the inside to the outside of a radiator. ✔✔Which is the best example of heat flow by conduction? The building is built using tight construction methods. ✔✔When should combustion air NOT be drawn from the inside of a building? White ✔✔The flame from a properly adjusted oil burner should be what color? An aquastat ✔✔What component is involved in controlling when a hot water boiler activates? Near a steam boiler. ✔✔Where would an equalizer pipe be found? An excessively long vent connector. ✔✔Brown colored particle under the flue collar of an induced draft gas furnace are most likely an indication of which defect? Water vapor ✔✔Permeability is a property of a material that allows the passage of: The side facing conditioned space ✔✔In a cold climate, a vapor retarder should be installed on which sides of a wall? NO ANSWER>Refer to NHIE Manual ✔✔Fiberglass batt insulation slows heat movement by Not placing the insulation in contact with an air barrier. ✔✔What action would most likely reduce fiberglass batt insulation R-value by the largest amount? In an attic in Phoenix, AZ. ✔✔Where would a radiant barrier be MOST effective?