NCIDQ IDPX Exam
NCIDQ IDPX EXAM STUDY GUIDE
QUESTIONS AND ANSWERS 2024
In regard to interior design, what is a guard, and what dimension must it have in
commercial construction? -Correct Answer ✔This is a building component installed to
prevent falls from an elevated area. Its required minimum heights 42" AFF
What is fire resistance-rated glazing? -Correct Answer ✔This is glass or some other
glazing material that has been tested according to ASTM E119 as part of a fire-
resistance-rated wall assembly
How many construction types are there, and which has the highest fire resistance? -
Correct Answer ✔The are five, and Type I has the highest fire resistance
What is an incidental use area? -Correct Answer ✔This is an area that is ancillary to the
main occupancy but has the same classification. It must be separated from the main
occupancy by a fire barrier, be equipped with an automatic sprinkler system, or both
What is an accessory occupancy? -Correct Answer ✔This is a space or room that is
used in conjunction with the main occupancy, but containing no more than 10% of the
floor area of the main occupancy
What is mixed occupancy? -Correct Answer ✔This is a situation where a single building
or interior space houses two or more different types of occupancies
What material does NFPA 701 test and what condition does it test for? -Correct Answer
✔This tests the flammability or draperies, curtain, and other window treatments
According to the International Building code (IBC), what is a fire partition, and where is it
used? -Correct Answer ✔The IBC defines this as a wall assembly having a fire-
resistance rating of 1 hour, used in:
-walls separating dwelling units
-walls separating guest rooms in Group R-1, R-2, and I-I occupancies
-walls separating tenant spaces in covered malls
-corridor walls
What is the maximum percentage of wall or ceiling area that combustible trim (such as
trim made of wood) can occupy a room? -Correct Answer ✔IN a room, this material can
occupy no more than 10% of a wall or ceiling area
What is occupancy class, and what is it used for? -Correct Answer ✔This is a usage
classification assigned to a building or interior space. It differentiates various types of
fire hazards and the life safety characteristics of various users
NCIDQ IDPX Exam
,NCIDQ IDPX Exam
What is the primary model building code in the United States? -Correct Answer ✔The
International Building Code (IBC)
What u=is a design concept? -Correct Answer ✔This is an idea or statement concerning
an overall physical response to ideas developed during programming
In regard to interior design, what is substantial completion? -Correct Answer ✔In a
construction project, this is the stage when the work or a designated portion of it, is
sufficiently complete according to the contract documents that the owner can occupy or
use the site, even though a few minor items may yet need to be finished or corrected
What are four common ways to install fabric wall covering? -Correct Answer ✔This is
commonly installed in one of four ways:
-applied directly using an adhesive
-using custom fabric panels
-using a proprietary stretch wall system
-using acoustic panels
What are five common types of resilient flooring? -Correct Answer ✔Five common types
are:
-vinyl
-vinyl composition
-rubber
-cork
-linoleum
What is lacquer? -Correct Answer ✔This is a coating material with a high nitrocellulose
content that has been modified with resins and plasticizers dissolved in a volatile
solvent
What is running trim? -Correct Answer ✔This type of molding is installed end to end
In commercial construction, what is the maximum height of a stair riser, and what is the
minimum depth of a stair tread? -Correct Answer ✔The maximum height of the former is
7 in, and the minimum depth of the latter is 11 in
What is the minimum clear width of an exit door? -Correct Answer ✔The minimum clear
width is 32"
What is the maximum allowable projection of a door into a corridor when the door is fully
opened? -Correct Answer ✔The maximum allowable projection is 7"
For an occupant load greater than 50, what is the absolute minimum corridor width? -
Correct Answer ✔In this instance, the minimum corridor width is 44 in
NCIDQ IDPX Exam
, NCIDQ IDPX Exam
How is minimum exit width calculated? -Correct Answer ✔This is calculated by
multiplying the occupant load of a space by the appropriate factor given in the building
code
What is a performance bond? -Correct Answer ✔This is a statement by a surety
company that obligates the surety company to complete construction of the owners
project if the contractor defaults
What four tasks does the interior designer normally perform during the schematic
design phase of a project? -Correct Answer ✔During this phase of a project, the
designer:
-prepares diagrams and drawings showing the general functional relationships required
by the project
-develops preliminary space plans
-prepares design concepts, including colors, finishes, and furniture
-prepares a preliminary statement of probable project costs
Under what conditions can a contractor propose substitutions during bidding? -Correct
Answer ✔Bidders must request written approval of these at least 10 days before bid
opening. The request must include documentation showing that the proposal meets the
requirements of the contract documents
What are shop drawings? -Correct Answer ✔These are detailed drawings, diagrams,
and other data, prepared by the subcontractor or supplier, that show exactly how the
provider intends to supply and install work to meet the contract requirements. They are
submitted to the contractor and interior designer for approval.
What is an addendum? -Correct Answer ✔This is a written or graphic document issues
by the interior designer before the execution of the contract that modifies or interprets
the bidding documents by additions, deletions, clarifications, or corrections
What is a change order? -Correct Answer ✔This is a form used to authorize a change in
contract time, contract cost, or both, made after the execution of the contract. It is
generally prepared by the interior designer and must be signed by the designer,
contractor, and owner.
Who has the authority to reject work that does not conform the the contract documents?
-Correct Answer ✔The interior designer can reject work that does not conform to these
What are seven of the items the contractor must submit to the owner during project
closeout -Correct Answer ✔During this phase of a project, the contractor must give the
owner:
-the bonds
-all warranties
NCIDQ IDPX Exam
