NCIDQ - IDFX PRACTICE EXAM 2025
QUESTIONS AND ANSWERS
Occupancy group - ANS The minimum number of toilet fixtures for an interior design is
determined by occupant load and?
Exit enclosures - ANS Where are flame spread ratings in a building the MOST restrictive
1 hour - ANS Exit access corridors in non-sprinklered buildings must have a rating of?
occupancy group, and the location in the building where finishes will be used - ANS When
selecting interior partition finishes to meet flame spread standards, the MOST important
considerations are?
20 ft - ANS According to the IBC, dead-end corridors in unsprinklered buildings are limited to
a maximum of?
aisle stairs - ANS According to the IBC, handrails in commercial construction are required
along both sides of a stairwell in all cases except?
kitchens - ANS Exit routes may NEVER pass through?
Door swing and approach dimension - ANS When considering the initial space planning of an
accessible toilet room, what design elements should be of MOST concern?
1 Copyright ©2025 SIRJOEL ALL RIGHTS RESERVED
, Visual and audible alarms - ANS What are the MOST important design elements to
incorporate into a hotel to provide safe egress for physically disabled people?
the distance from finish floor slab to to finish floor slab - ANS What is included in the rise of a
stair?
three 36 inch doors remotely located. (each provides 33 inches of exit width.) - ANS A
designer has calculated that a total exit width of 8 ft is required from a store, according to IBC
standards. What combination of door widths would meet most existing requirements.
travel distance - ANS in a 90,000 square foot single story building, what would be of greatest
concern in space planning?
The glass doors will have to be replaced with either solid, 20-minute rated doors or with 20-
minute rated doors with glass that is also rated 20 minutes. Because this will drastically change
the appearance of the entrance, this is the first thing the client should be told. - ANS A client
has requested a new entry to her business, which is located in an old, unsprinklered building.
The current entrance consists of a pair of all glass doors mounted on floor closers. The entrance
opens onto a 1-hour rated building corridor. To conform to current IBC requirements, what
would the designer tell the client to expect regarding the new entrance?
Contractor - ANS In most situations, the application for a building permit is made by the?
all accessible spaces and parts of a building - ANS An accessible route must serve?
scoping provisions of the local building code - ANS In addition to meeting the requirements
for ADA, what other accessibility requirements should the interior designer be MOST concerned
with when doing design development for a commercial project?
15 cfm/person - ANS The absolute minimum fresh air ventilation rate recommended by
ASHRAE Standard 62 is?
2 Copyright ©2025 SIRJOEL ALL RIGHTS RESERVED
QUESTIONS AND ANSWERS
Occupancy group - ANS The minimum number of toilet fixtures for an interior design is
determined by occupant load and?
Exit enclosures - ANS Where are flame spread ratings in a building the MOST restrictive
1 hour - ANS Exit access corridors in non-sprinklered buildings must have a rating of?
occupancy group, and the location in the building where finishes will be used - ANS When
selecting interior partition finishes to meet flame spread standards, the MOST important
considerations are?
20 ft - ANS According to the IBC, dead-end corridors in unsprinklered buildings are limited to
a maximum of?
aisle stairs - ANS According to the IBC, handrails in commercial construction are required
along both sides of a stairwell in all cases except?
kitchens - ANS Exit routes may NEVER pass through?
Door swing and approach dimension - ANS When considering the initial space planning of an
accessible toilet room, what design elements should be of MOST concern?
1 Copyright ©2025 SIRJOEL ALL RIGHTS RESERVED
, Visual and audible alarms - ANS What are the MOST important design elements to
incorporate into a hotel to provide safe egress for physically disabled people?
the distance from finish floor slab to to finish floor slab - ANS What is included in the rise of a
stair?
three 36 inch doors remotely located. (each provides 33 inches of exit width.) - ANS A
designer has calculated that a total exit width of 8 ft is required from a store, according to IBC
standards. What combination of door widths would meet most existing requirements.
travel distance - ANS in a 90,000 square foot single story building, what would be of greatest
concern in space planning?
The glass doors will have to be replaced with either solid, 20-minute rated doors or with 20-
minute rated doors with glass that is also rated 20 minutes. Because this will drastically change
the appearance of the entrance, this is the first thing the client should be told. - ANS A client
has requested a new entry to her business, which is located in an old, unsprinklered building.
The current entrance consists of a pair of all glass doors mounted on floor closers. The entrance
opens onto a 1-hour rated building corridor. To conform to current IBC requirements, what
would the designer tell the client to expect regarding the new entrance?
Contractor - ANS In most situations, the application for a building permit is made by the?
all accessible spaces and parts of a building - ANS An accessible route must serve?
scoping provisions of the local building code - ANS In addition to meeting the requirements
for ADA, what other accessibility requirements should the interior designer be MOST concerned
with when doing design development for a commercial project?
15 cfm/person - ANS The absolute minimum fresh air ventilation rate recommended by
ASHRAE Standard 62 is?
2 Copyright ©2025 SIRJOEL ALL RIGHTS RESERVED
