IRC Exam Prep Study Questions Chapter 3: Building Planning|Latest Update Graded A+
The minimum width of a hallway shall be _______________.
a. 32 inches
b. 36 inches
c. 42 inches
d. 44 inches
B
Where the stairway has a straight run, a stairway landing shall have a minimum depth of ______...
IRC Exam Prep Study Questions Chapter 3:
Building Planning|Latest Update Graded A+
The minimum width of a hallway shall be _______________.
a. 32 inches
b. 36 inches
c. 42 inches
d. 44 inches
B
Where the stairway has a straight run, a stairway landing shall have a minimum depth of
_______________ measured in the direction of travel.
a. 30 inches
b. 32 inches
c. 36 inches
d. 42 inches
C
Unless technically infeasible due to site constraints, the maximum slope of a ramp serving the
required egress door shall be one unit vertical in _______________ units horizontal.
a. five
b. eight
c. ten
d. twelve
D
Handrails are not required on ramps having a maximum slope of ______________.
a. 1:5
b. 1:8
c. 1:12
d. 1:15
C
Where a ramp changes direction, the width of the landing perpendicular to the ramp slope shall be a
minimum of __________ inches.
a. 36
b. 42
c. 48
d. 60
A
Stairways shall be a minimum _______________ wide at all points above the permitted handrail
height and below the required headroom height.
a. 30 inches
b. 34 inches
c. 36 inches
d. 38 inches
C
Where a handrail is provided on one side of a stairway, what is the minimum required clear width at
and below the handrail height?
, a. 27 inches
b. 29 inches
c. 31 1 /2 inches
d. 36 inches
C
Stairways shall have a maximum riser height of _______________ and a minimum tread run of
_______________.
a. 8 1 /4 inches, 9 inches
b. 8 inches, 9 inches
c. 7 3 /4 inches, 10 inches
d. 7 1 /2 inches, 10 inches
C
The maximum variation between the greatest riser height and the smallest riser height within any
flight of stairs shall be _______________ .
a. 1 /4 inch
b. 3 /8 inch
c. 1 /2 inch
d. 5 /8 inch
B
Unless a minimum tread depth of _______________ is provided, a minimum 3 /4-inch nosing is
required at the leading edge of all treads.
a. 9 1 /2 inches
b. 10 inches
c. 11 inches
d. 12 inches
C
Unless the stair has a total rise of no more than 30 inches, the opening between treads at open risers
shall be such that a minimum _______________ sphere shall not pass through.
a. 3-inch
b. 4-inch
c. 6-inch
d. no limitation is mandated
B
In the identification of flood hazard areas, areas that have been determined to be subject to
maximum wave heights of _______________ are not required to be designated coastal high-hazard
areas feet unless subject to high-velocity wave action or wave-induced erosion.
a. 3
b. 4
c. 5
d. 6
A
What is the maximum riser height permitted for spiral stairways?
a. 7 3 /4 inches
b. 8 inches
c. 8 1 /4 inches
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