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Sample Questions RBC Exam with complete Solutions 2024( A+ GRADED 100% VERIFIED).
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Sample Questions RBC Exam with complete Solutions 2024( A+ GRADED 100% VERIFIED).
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Sample Questions RBCA wall on a drawing with a scale of 1/4" =1-foot measures 5 1/2". How long is the
wall in feet? - ANS 22' - (5 1/2= 5 2/4 5 X 4=20 +2 =22')
A line on a drawing is composed of long and short dashes. What is the name of
this line? - ANS A centerline
Most construction lumber is cut ____ sawn - ANS Flat sawn
What is the minimum nominal thickness of the ridge board? - ANS 1 inch
How Many jack studs will be required for a 2-2x12 header in an interior bearing
wall supporting one floor only, building width of 28', and a span of 7'-0" - ANS 2
Jack stud required
What is the maximum hole that may be cut in a 2X12 nominal floor joist? - ANS 4"
Inches
What size strap is required if a top plate is notched more than 50% of its width? -
ANS 16 gauge in thickness and 1 1/2" wide
The end of a wood joist must bear on a wood beam by at least _____inches? -
ANS 1 1/2
The dimension of fine aggregate in concrete is up to ___ " in diameter and coarse
aggregate is larger than_____". - ANS 1/4 for both
Concrete gains most of its strength in how many days? - ANS 28 days
In what section of the span of a floor joist is it NOT permitted to cut a notch? -
ANS Middle third
What material is required for the door of an ash dump cleanout? - ANS Ferrous
metal or masonry
,A cricket is required when the width of a chimney is greater than _____inches. -
ANS 30"
In what direction must the access gate of a pool swing? - ANS Outwards
What is the minimum ceiling height over a bathtub? - ANS 6'-8"
What is the maximum unsupported height of a pier consisting of 12"X16" hollow
core blocks filled with type S mortar? - ANS 120"
What is the least outside circular diameter of a handrail? - ANS 1 1/4"
Insulation shall have a smoke-developed index not to exceed? - ANS Not to
exceed 450
From where must a smoke alarm draw its primary power? - ANS building wiring
What is the live load of an attic with habitable space? - ANS 30 #
What is the required width and height of the egress door?___X___? - ANS 32X78
The header is an exterior bearing wall of a building that is 28 feet wide, 50 pound
snow load, supports a roof, ceiling and one center bearing floor. If 3-2X12S are
used, what is the allowable span? - ANS 8'-0"
How far into concrete must anchor bolts extend? - ANS 7"
What is the maximum height of the backfill for a play masonry foundation wall, 8"
high and 8" thick, constructed in type GW soil? - ANS 5'
If a footing is 18" wide, what is the maximum width of a foundation wall placed on
this footing? - ANS 14"
What is the slope allowance for the bottom of a footing___in ____ - ANS 1 unit in
10 = 10% Slope
How far must foundation gravel extend above the footing drain? - ANS 6"
What distance from a wall must the base of a ladder be placed that has a working
length of 16'? - ANS 4' -it is 1/4 the working length
, What is the term for the basic starting point for the layout of a building? - ANS
benchmark
What is required to vent a hip roof? - ANS soffit and ridge vents
What is the overlap in inches of nominal 8" Plain-bevel wood siding board? -
ANS 1 1/4" plain bevel wood siding
What is the nailing requirement for a plywood soffit? - ANS 4D nails spaced 6"
apart
What is the spacing In inches of veneer ties? - ANS 36 inches
What is the minimum penetration of a drywall screw into wood ? - ANS 5/8"
What is the minimum width of a stairway? - ANS 36"
What is the most often used hinge for hanging residential doors? - ANS loose pin
butt mortise hinge
What size window is required in a bathroom if there is no mechanical ventilation?
- ANS 3 square feet
What is the minimum width of a hallway? - ANS 3'
In Virginia, what are the R Value insulation requirements for the ceiling, wall, and
floor. - ANS 49, 20, 19
The under-floor space vents must be covered with material with a least dimension
of? - ANS 1/4"
What is the maximum slump of concrete placed in removable forms? - ANS 6"
The end joints of double top plates must be offset at least________? - ANS 24"
What's the required clearance of wood siding from the ground before it is
required to be preservative treated ? - ANS 6"
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