IDFX Exam Questions and Answers with
Verified Solutions | Latest Updated 2026
An object located in the egress D. below 27" (685 mm) or above 80" (2115
path mm) AFF
of travel that projects more than
4″D
(100 mm) must be mounted:
A. between 27" (685 mm) and 80"
(2115 mm) AFF
B. at least 80" (2115 mm) AFF
C. between 30" (750 mm) and 80"
(2115 mm) AFF
D. below 27" (685 mm) or above
80"
(2115 mm) AFF
A local gallery is designing a B. 15" AFF to bottom
brochure stand (12″Wx 30″H) in (Acceptable unobstructed forward reach
an range 15"
open reception area. Which would min - 48" max)
be the maximum mounting height
to
suggest for the brochures?
A. 48" AFF to center
B. 15" AFF to bottom
C. 54" to top
D. 44" AFF to top
,Which of the following is TRUE A. should have a diameter between 1 1/4"
about to 2"
a circular accessible handrail for (answer D is wrong because 1 1/2" is the
stairs? MINIMUM
A. should have a diameter clear space between handrail and wall)
between 1
1/4" to 2"
B. must be made of a non-slip
material
C. must be mounted between 36"
and 42" above the front edge of
the
step
D. must have a 1 1/2" clear space
between the handrail and the wall
The common path of egress travel A. 100' (30.5 m)
distance can not exceed:
Assume a sprinklered building,
business occupancy, spaces with
1
exit or exit access doorway.
A. 100' (30.5 m)
B. 75' (23 m)
C. 200' (61 m)
D. 150' (46 m)
A vertical change in floor finish C. 1/4" (6.4 mm)
cannot exceed what height without
a
sloped transition piece?
A. 1/8" (3.2 mm)
B. 1/2" (13 mm)
C. 1/4" (6.4 mm)
D. 3/8" (9.5 mm)
,What should be the minimum D. one-half the diagonal distance of the
distance between exits within a room area
space? (In an UNSPRINKLERED space, 1/2
A. one-half the length of the room diagonal
B. twice the diagonal distance distance required between exits, in a
C. one-third the diagonal distance SPRINKLERED space, 1/3 diagonal
of distance
the room area between exits)
D. one-half the diagonal distance
of
the room area
What is the minimum dimension B. not less than the depth of one tread
for beyond the
the bottom stair handrail bottom riser
extension?
A. 12"
B. not less than the depth of one
tread beyond the bottom riser
C. cannot be less than 30"
D. 18" from the bottom of the tread
In an accessible shower, on how C. 2
many sides of the stall are grab
bars
required?
A. a minimum of 1 along the
longest
wall and a vertical grab bar at the
control wall
B. all 4 sides
C. 2
D. a minimum of 1 along the
longest
wall
, Which of the following statements A. Audible alarms have a maximum dB
is level
MOST true under Section 702: requirement
"Fire (Max 110 dB, min 15dB above average
Alarm Systems," of the "Americans ambient
with DisabilityAccessibility sound levels. Min does not have a firm
Guidelines" (2010)? requirement
A. Audible alarms have a as it is relative)
maximum
dB level requirement.
B. There is a minimum sound level
for
any audible alarm.
C. Medical care facilities shall not
comply with these requirements.
D. Guest rooms do not need to
comply with these requirements.
Which of the following types of D. section, isometric view, large-scale plan
drawings might be used to view
illustrate
a detail?
A. large scale partial elevation,
section, perspective
B. detail drawing, large scale plan
view, perspective
C. detail drawing, section,
perspective
D. section, isometric view, large-
scale plan view
Verified Solutions | Latest Updated 2026
An object located in the egress D. below 27" (685 mm) or above 80" (2115
path mm) AFF
of travel that projects more than
4″D
(100 mm) must be mounted:
A. between 27" (685 mm) and 80"
(2115 mm) AFF
B. at least 80" (2115 mm) AFF
C. between 30" (750 mm) and 80"
(2115 mm) AFF
D. below 27" (685 mm) or above
80"
(2115 mm) AFF
A local gallery is designing a B. 15" AFF to bottom
brochure stand (12″Wx 30″H) in (Acceptable unobstructed forward reach
an range 15"
open reception area. Which would min - 48" max)
be the maximum mounting height
to
suggest for the brochures?
A. 48" AFF to center
B. 15" AFF to bottom
C. 54" to top
D. 44" AFF to top
,Which of the following is TRUE A. should have a diameter between 1 1/4"
about to 2"
a circular accessible handrail for (answer D is wrong because 1 1/2" is the
stairs? MINIMUM
A. should have a diameter clear space between handrail and wall)
between 1
1/4" to 2"
B. must be made of a non-slip
material
C. must be mounted between 36"
and 42" above the front edge of
the
step
D. must have a 1 1/2" clear space
between the handrail and the wall
The common path of egress travel A. 100' (30.5 m)
distance can not exceed:
Assume a sprinklered building,
business occupancy, spaces with
1
exit or exit access doorway.
A. 100' (30.5 m)
B. 75' (23 m)
C. 200' (61 m)
D. 150' (46 m)
A vertical change in floor finish C. 1/4" (6.4 mm)
cannot exceed what height without
a
sloped transition piece?
A. 1/8" (3.2 mm)
B. 1/2" (13 mm)
C. 1/4" (6.4 mm)
D. 3/8" (9.5 mm)
,What should be the minimum D. one-half the diagonal distance of the
distance between exits within a room area
space? (In an UNSPRINKLERED space, 1/2
A. one-half the length of the room diagonal
B. twice the diagonal distance distance required between exits, in a
C. one-third the diagonal distance SPRINKLERED space, 1/3 diagonal
of distance
the room area between exits)
D. one-half the diagonal distance
of
the room area
What is the minimum dimension B. not less than the depth of one tread
for beyond the
the bottom stair handrail bottom riser
extension?
A. 12"
B. not less than the depth of one
tread beyond the bottom riser
C. cannot be less than 30"
D. 18" from the bottom of the tread
In an accessible shower, on how C. 2
many sides of the stall are grab
bars
required?
A. a minimum of 1 along the
longest
wall and a vertical grab bar at the
control wall
B. all 4 sides
C. 2
D. a minimum of 1 along the
longest
wall
, Which of the following statements A. Audible alarms have a maximum dB
is level
MOST true under Section 702: requirement
"Fire (Max 110 dB, min 15dB above average
Alarm Systems," of the "Americans ambient
with DisabilityAccessibility sound levels. Min does not have a firm
Guidelines" (2010)? requirement
A. Audible alarms have a as it is relative)
maximum
dB level requirement.
B. There is a minimum sound level
for
any audible alarm.
C. Medical care facilities shall not
comply with these requirements.
D. Guest rooms do not need to
comply with these requirements.
Which of the following types of D. section, isometric view, large-scale plan
drawings might be used to view
illustrate
a detail?
A. large scale partial elevation,
section, perspective
B. detail drawing, large scale plan
view, perspective
C. detail drawing, section,
perspective
D. section, isometric view, large-
scale plan view
