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IDPX Exam Latest Questions And Correct
Detailed Answers (Verified Answers)
Question: dead load
Ans: Weight (lbs/per sq ft.) of actual building materials (the weight of the
structure itself);
static, fixed loads (bldg, structure, skin, fixed equipment); includes columns,
beams,
exterior & interior walls, floors, and mechanical equipment.
Question: minimum clear floor space required for a wheelchair
Ans: 30"x48"
Question: typical riser height
Ans: 7"
Question: most common metal wall stud depth
Ans: 2 1/2"
Question: The maximum
Master01 | 2025/2026 | Latest update
, 2
glazed area cannot exceed what percentage of the area of the corridor
wall of the room separating it
from the corridor
Ans: 25% not to exceed 1296 square inches
Question: Vertical members used between double doors to seal the
opening and provide extra security
when the doors are closed
Ans: astragals
Question: In arranging exits in a space, what should be the minimum
distance between means of egress
Ans: half the distance of the diagonal of the building area
Question: ADA ramp ratio of rise to run
Ans: 1:12
Question: maximum grab bar height in a barrier-free commercial
restroom
Master01 | 2025/2026 | Latest update
, 3
Ans: 36"
Question: minimum clear width of a 6' long hallway
Ans: 36" (occupant load less than 50), 44" (occupant load more than 50)
Question: types of windows that meet life safety standards
Ans: double-hung, sliding, casement
Question: used to test furniture upholstery
Ans: smolder resistance test, steiner tunnel test, smoke density test
Question: minimum dimension for the bottom handrail extension on a
stair handrail
Ans: not less than the depth of one tread beyond the bottom riser
Question: diameter of stair handrail
Ans: between 1.25"-2"
Question: Most federal agencies require a smoke density rate of
Master01 | 2025/2026 | Latest update
, 4
Ans: 450 or less
Question: Window treatments in office buildings
Ans: must meet NFPA 701 (vertical ignition test)
Question: Which of the following labels is required by code for a 20-
minute-rated wooden door
Ans: UL (underwriters laboratory)
Question: Interior wall and ceiling textile finishes are classified in
accordance with which IBC specific testing
method or standard
Ans: ASTM E-84 (Steiner Tunnel Test - Flame spread rating of finishes)
Question: amount of clear space to be maintained below a sign or
other ceiling projection
Ans: 80"
Master01 | 2025/2026 | Latest update
IDPX Exam Latest Questions And Correct
Detailed Answers (Verified Answers)
Question: dead load
Ans: Weight (lbs/per sq ft.) of actual building materials (the weight of the
structure itself);
static, fixed loads (bldg, structure, skin, fixed equipment); includes columns,
beams,
exterior & interior walls, floors, and mechanical equipment.
Question: minimum clear floor space required for a wheelchair
Ans: 30"x48"
Question: typical riser height
Ans: 7"
Question: most common metal wall stud depth
Ans: 2 1/2"
Question: The maximum
Master01 | 2025/2026 | Latest update
, 2
glazed area cannot exceed what percentage of the area of the corridor
wall of the room separating it
from the corridor
Ans: 25% not to exceed 1296 square inches
Question: Vertical members used between double doors to seal the
opening and provide extra security
when the doors are closed
Ans: astragals
Question: In arranging exits in a space, what should be the minimum
distance between means of egress
Ans: half the distance of the diagonal of the building area
Question: ADA ramp ratio of rise to run
Ans: 1:12
Question: maximum grab bar height in a barrier-free commercial
restroom
Master01 | 2025/2026 | Latest update
, 3
Ans: 36"
Question: minimum clear width of a 6' long hallway
Ans: 36" (occupant load less than 50), 44" (occupant load more than 50)
Question: types of windows that meet life safety standards
Ans: double-hung, sliding, casement
Question: used to test furniture upholstery
Ans: smolder resistance test, steiner tunnel test, smoke density test
Question: minimum dimension for the bottom handrail extension on a
stair handrail
Ans: not less than the depth of one tread beyond the bottom riser
Question: diameter of stair handrail
Ans: between 1.25"-2"
Question: Most federal agencies require a smoke density rate of
Master01 | 2025/2026 | Latest update
, 4
Ans: 450 or less
Question: Window treatments in office buildings
Ans: must meet NFPA 701 (vertical ignition test)
Question: Which of the following labels is required by code for a 20-
minute-rated wooden door
Ans: UL (underwriters laboratory)
Question: Interior wall and ceiling textile finishes are classified in
accordance with which IBC specific testing
method or standard
Ans: ASTM E-84 (Steiner Tunnel Test - Flame spread rating of finishes)
Question: amount of clear space to be maintained below a sign or
other ceiling projection
Ans: 80"
Master01 | 2025/2026 | Latest update
