IDFX CODES EXAMPREP TESTED
QUESTIONS WITH ACCURATE RESPONSES
PREMIUM LEARNING PACKAGE
●● A local gallery is designing a brochure stand (12″Wx 30″H) in an
open reception area. Which would 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
Answer: B. 15" AFF to bottom
(Acceptable unobstructed forward reach range 15" min - 48" max)
●● Which of the following is TRUE about a circular accessible handrail
for stairs?
,A. should have a diameter 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
Answer: A. should have a diameter between 1 1/4" to 2"
(answer D is wrong because 1 1/2" is the MINIMUM clear space
between handrail and wall)
●● The common path of egress travel 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)
Answer: A. 100' (30.5 m)
●● A vertical change in floor finish 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)
Answer: C. 1/4" (6.4 mm)
●● What should be the minimum distance between exits within a space?
A. one-half the length of the room
B. twice the diagonal distance
C. one-third the diagonal distance of the room area
, D. one-half the diagonal distance of the room area
Answer: D. one-half the diagonal distance of the room area
(In an UNSPRINKLERED space, 1/2 diagonal distance required
between exits, in a SPRINKLERED space, 1/3 diagonal distance
between exits)
●● What is the minimum dimension for the bottom stair handrail
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
Answer: B. not less than the depth of one tread beyond the bottom riser
●● In an accessible shower, on how many sides of the stall are grab bars
required?
QUESTIONS WITH ACCURATE RESPONSES
PREMIUM LEARNING PACKAGE
●● A local gallery is designing a brochure stand (12″Wx 30″H) in an
open reception area. Which would 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
Answer: B. 15" AFF to bottom
(Acceptable unobstructed forward reach range 15" min - 48" max)
●● Which of the following is TRUE about a circular accessible handrail
for stairs?
,A. should have a diameter 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
Answer: A. should have a diameter between 1 1/4" to 2"
(answer D is wrong because 1 1/2" is the MINIMUM clear space
between handrail and wall)
●● The common path of egress travel 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)
Answer: A. 100' (30.5 m)
●● A vertical change in floor finish 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)
Answer: C. 1/4" (6.4 mm)
●● What should be the minimum distance between exits within a space?
A. one-half the length of the room
B. twice the diagonal distance
C. one-third the diagonal distance of the room area
, D. one-half the diagonal distance of the room area
Answer: D. one-half the diagonal distance of the room area
(In an UNSPRINKLERED space, 1/2 diagonal distance required
between exits, in a SPRINKLERED space, 1/3 diagonal distance
between exits)
●● What is the minimum dimension for the bottom stair handrail
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
Answer: B. not less than the depth of one tread beyond the bottom riser
●● In an accessible shower, on how many sides of the stall are grab bars
required?
