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National Home inspector exam 494|28 Questions & Answers
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National Home inspector exam 494|28 Questions & Answers
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National Home inspector exam 494|28Questions & Answers
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
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