Contractor's License Exam Questions And All Verified Answers.
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Course
NC Contractor
Institution
NC Contractor
Attachments to structural members - Answer The edges of lugs brackets, rivets and bolt heads attached to structural members shall be permitted to extend to within 1 inch of the surface of the fire protection
Parapet construction - Answer The height of the parapet shall not be less than 30 in...
Contractor's License Exam Questions
And All Verified Answers.
Attachments to structural members - Answer The edges of lugs brackets, rivets and bolt heads attached
to structural members shall be permitted to extend to within 1 inch of the surface of the fire protection
Parapet construction - Answer The height of the parapet shall not be less than 30 inches above the
point where the roof surface and the wall intersect.
Combustible framing in fire walls - Answer Adjacent combustible members entering into a concrete or
masonry fire wall from opposite sides shall not have less than a 4 inch distance between embedded
ends.
Concealed sleeper spaces - Answer spaces under floors that are filled fire resistant material; open
spaces will will not exceed 100 sq feet
Fire alarm height - Answer The height of the manual fire alarm boxes shall be not less than 42 inches
and not more than 48 inches
Manual fire box color - Answer red
Size of doors - Answer minimum clear width of 32 inches and height no less than 80 inches
Stairways width and capacity - Answer minimum width shall be not less than 44 inches
Stairway headroom - Answer stairway headroom clearance of not less than 80 inches measured from a
line connecting the nosings.
riser height - Answer 4-7
tread depth - Answer 11 inches minimum
,Dimensional uniformity (stairs) - Answer the difference between the greatest and the smallest stair shall
not exceed 3/8 inch
Handrails - Answer Stairways shall have handrails on each side and adequate in length
Handrail height - Answer 34-38 inches
HANDRAIL CLEARANCE FROM THE WALLS - Answer 1.5 inches
guards - Answer Guards shall be located along open-sided walking surfaces more than 30 inches off the
ground
Guard Height - Answer shall not be less than 42 inches
Guard opening limitations - Answer no openings large enough to allow a 4 inch ball to pass through if so
a curb is required
Emergency Escape and Rescue Opening - Answer shall have a minimum net clear opening of 5.7 square
feet
Emergency Escape and Rescue Opening dimensions - Answer height 24 inches by 20 inches wide
Under floor ventilation - Answer crawl spaces shall be provided with ventilation openings in the
foundation walls
Openings for under floor ventilation - Answer shall not be less than 1 square foot for each 150 square
feet of crawl space area
Crickets and saddles - Answer a cricket and saddle shall be installed on the ridge side of any chimney or
penetration greater than 30 inches measured perpendicular to the slope
, Asphalt shingles attachment - Answer Shingles shall have a minimum number of fasteners required by
the manufacturer, but not less than four fasteners per strip shingle or two fasteners per individual
shingle.
Asphalt shingles underlayment - Answer For roof slopes of four units vertical in 12 units horizontal (33-
percent slope) or greater underlayment shall be one layer applied starting from the eave lapped 2 inches
Asphalt shingle slope - Answer Can only be used on a slope of 17% or greater
Base and cap flashing - Answer Base flashing shall be of either corrosion-resistant metal of
minimum .019 inc thickness or mineral surfaced roll roofing minimum 77 pound
Drip edge - Answer A drip edge shall be provided at eaves and rake edges of shingle roofs. They will be
fastened at a maximum of 12 inches on center.
Flashing - Answer The valley flashing shall extend at least 11 inches from the center line each way and
have a splash diverter rib not less than 1 inch high
Metal roof shingles deck slope - Answer shall not be installed on roof slopes below 3/12 (25%) slope
mineral surface roll roofing deck slope - Answer shall not be installed on roofs with a slope below 1/12
(8%)
mineral surface valley (flashing) - Answer shall be a minimum of 15 inches wide
Wood shingles Deck requirements - Answer sheathing boards shall not be less than 1 inch by 4 inch
wood shingles deck slope - Answer wood shingles shall be installed on a slope not less than 3/12 (25%)
Live Load grab bars, shower seats and benches - Answer shall resist a single concentrated load of 250
pounds
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