IRC TEST NEWEST 2026 ACTUAL EXAM COMPLETE 200
QUESTIONS AND CORRECT ANSWERS (VERIFIED) | GRADED
A+|BRAND NEW | UPDATED 2026/2027.
The minimum width of a hallway shall be _______________.
a. 32 inches
b. 36 inches
c. 42 inches
d. 44 inches - ANSWER-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 - ANSWER-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 - ANSWER-D
Stairways shall have a maximum riser height of _______________ and a minimum tread run of
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_______________.
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 - ANSWER-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 - ANSWER-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 - ANSWER-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 - ANSWER-A
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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 - ANSWER-C
Handrails are not required on ramps having a maximum slope of ______________.
a. 1:5
b. 1:8
c. 1:12
d. 1:15 - ANSWER-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 - ANSWER-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
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d. no limitation is mandated - ANSWER-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 - ANSWER-A
What is the maximum riser height permitted for spiral stairways? a.
7 3 /4 inches
b. 8 inches
c. 8 1 /4 inches
d. 9 1 /2 inches - ANSWER-D
Stairway handrail height shall be, measured vertically from the nosing of the treads, a minimum of
_______________ and a maximum of _______________. a. 30 inches, 34 inches b. 30 inches, 38
inches
c. 34 inches, 38 inches
d. 34 inches, 42 inches - ANSWER-C