Florida-INTERNACHI HOME INSPECTOR
– 1-Study Guide Test Questions With
100% Solved Solutions 2026/2027
Update.
The upper edge of a masonry chimney cleanout should be at least ____ inches below the lowest
inlet opening. - Answer 6
The minimum slope for a composition-shingle roof is ____. - Answer 2:12
Wood rot may be found when the wood's moisture content is above ____. - Answer 20%
InterNACHI estimates that of the 45 million existing decks, only _____ are completely safe. -
Answer 40%
InterNACHI estimates that of the 45 million existing decks, only _____ are completely safe. -
Answer 40%
Many builders use common "1/2-inch wood sheathing, which has an R-value of ______. -
Answer 0.6
The U.S. government has established a minimum rating for furnaces of _________. - Answer
78%
The minimum efficiency rating for furnaces is ___________. - Answer 78%
A home must be ventilated to let out moisture. More than ___________ of the water used to
water plants eventually enters the air. - Answer 99%
Ramps should not have a slope greater than a ___ unit vertical in 12 units horizontal. - Answer
1
Traps should be level in relation to a water seal. Traps should have a water seal of at least _____
inches. - Answer 2
In a solid wood floor joist, a bored hole should be at least ___ inches from the top or bottom
edge. - Answer 2
,For purposes of anchoring to the foundation wall, there should be at least ______ bolts per
plate section. - Answer 2
In a solid wood floor joist, a bored hole should be at least ___ inches from the top or bottom
edge. - Answer 2
Masonry chimneys should extend at least ____ feet higher than any portion of a building within
10 horizontal feet. - Answer 2
On roof slopes greater than 4&12 modern standards call for underlayment courses to overlap
horizontally a minimum of _____ inches. - Answer 2
The standpipe and trap for an automatic clothes washer should be at least ____ inches in
diameter. - Answer 2
An attic with an area of 600 square feet with ridge and soffit vents should have a total vent area
of _____ square feet - Answer 2
A clearance gap of ___ inches is required between a manufactured chimney and combustibles -
Answer 2
If a roof ridge is closer than 10 feet to a chimney, the stack should be ____ feet higher - Answer
2
An attic with an area of 600 square feet with ridge and soffit vents should have a total vent area
of _____ square feet - Answer 2
A clearance gap of ___ inches is required between a manufactured chimney and combustibles -
Answer 2
If a roof ridge is closer than 10 feet to a chimney, the stack should be ____ feet higher - Answer
2
A proper chimney crown should be constructed of a Portland cement-based mixture and cast or
formed so that it provides an overhang projecting beyond all sides of the chimney by a
minimum of _____ inches. - Answer 2
,House framing components should be at least ____ inches away from the chimney wall -
Answer 2
A proper masonry chimney cap should be constructed of a Portland cement-based mixture and
cast or formed so it provides an overhang projecting beyond all sides of the chimney by a
minimum of _____ inches - Answer 2
House framing components should be at least ____ inches away from the chimney wall -
Answer 2
A proper masonry chimney cap should be constructed of a Portland cement-based mixture and
cast or formed so it provides an overhang projecting beyond all sides of the chimney by a
minimum of _____ inches - Answer 2
Felt underlayment on tile roofs with a pitch between 3:12 and 4:12 should have a minimum
_____-inch headlap. - Answer 2
Felt underlayment on tile roofs with a pitch of 4:12 or greater should have a minimum _____-
inch headlap. - Answer 2
Felt underlayment on tile roofs with a pitch of 4:12 or greater should have a minimum _____-
inch headlap - Answer 2
Open electrical service conductors and multi-conductor cables that are not installed in a
raceway or provided with an approved overall outer jacket should have a clearance of at least
_____ feet from the sides of doors, porches, decks, stairs, ladders, fire escapes and balconies,
and from the sides and bottoms of operable windows. - Answer 3
The minimum height of a masonry chimney should be _____ feet. - Answer 3
Open electrical service conductors and multi-conductor cables that are not installed in a
raceway or provided with an approved overall outer jacket should have a clearance of at least
_____ feet from the sides of doors, porches, decks, stairs, ladders, fire escapes and balconies,
and from the sides and bottoms of operable windows. - Answer 3
Service drops should not pass closer than ____ feet over the ridge of a conventionally pitched
roof. - Answer 3
A typical chimney is a minimum of ____ feet high - Answer 3
, A typical chimney is a minimum of ____ feet high - Answer 3
The inspector should inspect for chimneys that terminate less than ___ feet above the highest
point where they pass through the roof surface - Answer 3
The inspector should inspect for chimneys that terminate less than ___ feet above the highest
point where they pass through the roof surface - Answer 3
The typical minimum headlap for tile is _____ inches. - Answer 3
The typical minimum headlap for tile is _____ inches - Answer 3
The R-value per inch of material for fiberglass batt insulation is ______. - Answer 3.2
Asphalt shingles that are the most resistant to impact are rated _____. - Answer 4
Plywood and OSB can leave the production line with a moisture content as low as _____%. -
Answer 4
Asphalt shingles are rated for impact resistance by classes 1 through 4 with class _____ shingles
having the highest resistance. - Answer 4
Woven valleys should never be installed on a roof with a pitch of less than _____:12 - Answer
4
Guardrail infill should not permit a _____-inch sphere to pass through. - Answer 4
Any stairway of ____ or more risers should have a handrail on at least one side. - Answer 4
In this course, we learned that a minimum riser height is ____ inches. - Answer 4
Horizontal guards at raised floor areas, balconies and porches should have intermediate rails or
ornamental enclosures that do not allow passage of a ____-inch diameter sphere. - Answer 4
The flue liner tile should project above the crown a minimum of _____ inches. - Answer 4
– 1-Study Guide Test Questions With
100% Solved Solutions 2026/2027
Update.
The upper edge of a masonry chimney cleanout should be at least ____ inches below the lowest
inlet opening. - Answer 6
The minimum slope for a composition-shingle roof is ____. - Answer 2:12
Wood rot may be found when the wood's moisture content is above ____. - Answer 20%
InterNACHI estimates that of the 45 million existing decks, only _____ are completely safe. -
Answer 40%
InterNACHI estimates that of the 45 million existing decks, only _____ are completely safe. -
Answer 40%
Many builders use common "1/2-inch wood sheathing, which has an R-value of ______. -
Answer 0.6
The U.S. government has established a minimum rating for furnaces of _________. - Answer
78%
The minimum efficiency rating for furnaces is ___________. - Answer 78%
A home must be ventilated to let out moisture. More than ___________ of the water used to
water plants eventually enters the air. - Answer 99%
Ramps should not have a slope greater than a ___ unit vertical in 12 units horizontal. - Answer
1
Traps should be level in relation to a water seal. Traps should have a water seal of at least _____
inches. - Answer 2
In a solid wood floor joist, a bored hole should be at least ___ inches from the top or bottom
edge. - Answer 2
,For purposes of anchoring to the foundation wall, there should be at least ______ bolts per
plate section. - Answer 2
In a solid wood floor joist, a bored hole should be at least ___ inches from the top or bottom
edge. - Answer 2
Masonry chimneys should extend at least ____ feet higher than any portion of a building within
10 horizontal feet. - Answer 2
On roof slopes greater than 4&12 modern standards call for underlayment courses to overlap
horizontally a minimum of _____ inches. - Answer 2
The standpipe and trap for an automatic clothes washer should be at least ____ inches in
diameter. - Answer 2
An attic with an area of 600 square feet with ridge and soffit vents should have a total vent area
of _____ square feet - Answer 2
A clearance gap of ___ inches is required between a manufactured chimney and combustibles -
Answer 2
If a roof ridge is closer than 10 feet to a chimney, the stack should be ____ feet higher - Answer
2
An attic with an area of 600 square feet with ridge and soffit vents should have a total vent area
of _____ square feet - Answer 2
A clearance gap of ___ inches is required between a manufactured chimney and combustibles -
Answer 2
If a roof ridge is closer than 10 feet to a chimney, the stack should be ____ feet higher - Answer
2
A proper chimney crown should be constructed of a Portland cement-based mixture and cast or
formed so that it provides an overhang projecting beyond all sides of the chimney by a
minimum of _____ inches. - Answer 2
,House framing components should be at least ____ inches away from the chimney wall -
Answer 2
A proper masonry chimney cap should be constructed of a Portland cement-based mixture and
cast or formed so it provides an overhang projecting beyond all sides of the chimney by a
minimum of _____ inches - Answer 2
House framing components should be at least ____ inches away from the chimney wall -
Answer 2
A proper masonry chimney cap should be constructed of a Portland cement-based mixture and
cast or formed so it provides an overhang projecting beyond all sides of the chimney by a
minimum of _____ inches - Answer 2
Felt underlayment on tile roofs with a pitch between 3:12 and 4:12 should have a minimum
_____-inch headlap. - Answer 2
Felt underlayment on tile roofs with a pitch of 4:12 or greater should have a minimum _____-
inch headlap. - Answer 2
Felt underlayment on tile roofs with a pitch of 4:12 or greater should have a minimum _____-
inch headlap - Answer 2
Open electrical service conductors and multi-conductor cables that are not installed in a
raceway or provided with an approved overall outer jacket should have a clearance of at least
_____ feet from the sides of doors, porches, decks, stairs, ladders, fire escapes and balconies,
and from the sides and bottoms of operable windows. - Answer 3
The minimum height of a masonry chimney should be _____ feet. - Answer 3
Open electrical service conductors and multi-conductor cables that are not installed in a
raceway or provided with an approved overall outer jacket should have a clearance of at least
_____ feet from the sides of doors, porches, decks, stairs, ladders, fire escapes and balconies,
and from the sides and bottoms of operable windows. - Answer 3
Service drops should not pass closer than ____ feet over the ridge of a conventionally pitched
roof. - Answer 3
A typical chimney is a minimum of ____ feet high - Answer 3
, A typical chimney is a minimum of ____ feet high - Answer 3
The inspector should inspect for chimneys that terminate less than ___ feet above the highest
point where they pass through the roof surface - Answer 3
The inspector should inspect for chimneys that terminate less than ___ feet above the highest
point where they pass through the roof surface - Answer 3
The typical minimum headlap for tile is _____ inches. - Answer 3
The typical minimum headlap for tile is _____ inches - Answer 3
The R-value per inch of material for fiberglass batt insulation is ______. - Answer 3.2
Asphalt shingles that are the most resistant to impact are rated _____. - Answer 4
Plywood and OSB can leave the production line with a moisture content as low as _____%. -
Answer 4
Asphalt shingles are rated for impact resistance by classes 1 through 4 with class _____ shingles
having the highest resistance. - Answer 4
Woven valleys should never be installed on a roof with a pitch of less than _____:12 - Answer
4
Guardrail infill should not permit a _____-inch sphere to pass through. - Answer 4
Any stairway of ____ or more risers should have a handrail on at least one side. - Answer 4
In this course, we learned that a minimum riser height is ____ inches. - Answer 4
Horizontal guards at raised floor areas, balconies and porches should have intermediate rails or
ornamental enclosures that do not allow passage of a ____-inch diameter sphere. - Answer 4
The flue liner tile should project above the crown a minimum of _____ inches. - Answer 4
