VERIFIED ANSWERS| LATEST UPDATE
If a system designed for use with natural gas is supplied with propane gas - Correct Answer -the flame
will be too high unless a smaller orifice is installed
Low pressure boiler pipes do NOT carry steam pressure above - Correct Answer -15 PSI
When an asphalt shingle roof is installed over existing shingles, leakage commonly occurs at the - Correct
Answer -penetrations
Roof Trusses - Correct Answer -are usually designed for two-point bearing
on a hillside house with foundation drain systems - Correct Answer -the foundation drain systems collect
water passing through the slope
A subpanel in an older house that is wired with non-metallic sheathed cable (NM) has one circuit with a
ground wire. The ground wire - Correct Answer -should be connected to a separate grounded buss bar
, At what level would water pressure within a single-family dwelling begin to be considered excessive and
require correction - Correct Answer -80 PSI
buckling in horizontal vinyl siding is generally caused by - Correct Answer -improper fastening
Which set of building terms do not belong together - Correct Answer -cripple, trimmer, purlin
which has the least effect on the deflection of a dimension lumber floor system - Correct Answer -joist
width
The normal Maximum rise of residential stair treads is - Correct Answer -7 3/4 inches
An ungrounded receptacle may be replaced by a ground fault circuit interrupter installed - Correct
Answer -upstream from the receptacle
circuit breakers - Correct Answer -protect the wire from an electrical overload
In a forced air heating system containing a split system air conditioner and a humidifier, humidity is
reduced by - Correct Answer -condensation at the evaporator coil