National Home inspector exam 494 2024 | Questions with 100% Correct Answers | Verified | Latest Update | Graded A+

National Home inspector exam 494 2024 | Questions with 100% Correct Answers | Verified | Latest Update | Graded A+ At what level would water pressure within a single-family dwelling begin to be considered excessive and require correction - 80 PSI buckling in horizontal vinyl siding is generally caused by - improper fastening A newer home with electric heat is being inspected. It has a below grade finished basement containing a bedroom. The inspector should look for a smoke alarm and - an escape and rescue opening A swimming pool fence must prevent passage of a sphere that is larger than - 4 inches If water infiltration is suspected behind a finished surface, what tool would be the best choice to verify dampness? - non-contact moisture meter Gas-fired furnace heat exchangers most often fail from - rust and metal fatigue relative humidity (RH) is expressed as - percentage Connections of dissimilar metal in a plumbing system, such as galvanized steel pipe and copper pipe, will usually cause - electrolysis A ground fault circuit interrupter (GFCI) is a safety device that - disconnects the power when sensing current leakage to ground An electrical system with a fuse on the neutral conductor and on the energized (hot) conductors - is hazardous and should be corrected To operate a central air conditioner, an electric clothes dryer, and and electric range, the ampacity of the service to the house should be AT LEAST - 100 amps at 240 volts A floor joist in a crawl space has been cut where the toilet drain passes through the floor. the joists are 2x6 spaced at 16" on center. The inspector should recommend that - a contractor be contacted to determine what is needed and make repairs Most problems with concrete are caused at the time of installation. What single factor causes MOST problems - Too much water is added to the mix brick chimneys on older properties with oil heat sometimes curve above the roof line, with no visible cracks. What is a possible cause - expansion of mortar